Merge pull request #4 from MajMcCloud/development

A lot of updates and fixes

Examples/AsyncFormUpdates/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>

Examples/AsyncFormUpdates/AsyncFormUpdates.csproj

@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{673A56F5-6110-4AED-A68D-562FD6ED3EA6}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>AsyncFormUpdates</RootNamespace>
+    <AssemblyName>AsyncFormUpdates</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Newtonsoft.Json, Version=11.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Newtonsoft.Json.11.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+    <Reference Include="Telegram.Bot, Version=15.7.1.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Telegram.Bot.15.7.1\lib\net45\Telegram.Bot.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="forms\AsyncFormEdit.cs" />
+    <Compile Include="forms\AsyncFormUpdate.cs" />
+    <Compile Include="forms\Start.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\TelegramBotBase\TelegramBotBase.csproj">
+      <Project>{0bd16fb9-7ed4-4ccb-83eb-5cee538e1b6c}</Project>
+      <Name>TelegramBotBase</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

Examples/AsyncFormUpdates/Program.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Timers;
+
+namespace AsyncFormUpdates
+{
+    class Program
+    {
+        static TelegramBotBase.BotBase<forms.Start> bot = null;
+
+        static void Main(string[] args)
+        {
+            String apiKey = "APIKey";
+
+            bot = new TelegramBotBase.BotBase<forms.Start>(apiKey);
+
+            bot.Start();
+
+            var timer = new Timer(5000);
+
+            timer.Elapsed += Timer_Elapsed;
+            timer.Start();
+
+            Console.ReadLine();
+
+            timer.Stop();
+            bot.Stop();
+        }
+
+        private static async void Timer_Elapsed(object sender, ElapsedEventArgs e)
+        {
+            
+            foreach(var s in bot.Sessions.SessionList)
+            {
+                //Only for AsyncUpdateForm
+                if (s.Value.ActiveForm.GetType() != typeof(forms.AsyncFormUpdate) && s.Value.ActiveForm.GetType() != typeof(forms.AsyncFormEdit))
+                    continue;
+
+                await bot.InvokeMessageLoop(s.Key);
+            }
+
+
+        }
+    }
+}

Examples/AsyncFormUpdates/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die einer Assembly zugeordnet sind.
+[assembly: AssemblyTitle("AsyncFormUpdates")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("AsyncFormUpdates")]
+[assembly: AssemblyCopyright("Copyright ©  2021")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf FALSE werden die Typen in dieser Assembly
+// für COM-Komponenten unsichtbar.  Wenn Sie auf einen Typ in dieser Assembly von
+// COM aus zugreifen müssen, sollten Sie das ComVisible-Attribut für diesen Typ auf "True" festlegen.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("673a56f5-6110-4aed-a68d-562fd6ed3ea6")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+//      Hauptversion
+//      Nebenversion
+//      Buildnummer
+//      Revision
+//
+// Sie können alle Werte angeben oder Standardwerte für die Build- und Revisionsnummern verwenden,
+// indem Sie "*" wie unten gezeigt eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Examples/AsyncFormUpdates/forms/AsyncFormEdit.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Attributes;
+using TelegramBotBase.Base;
+using TelegramBotBase.Form;
+
+namespace AsyncFormUpdates.forms
+{
+    public class AsyncFormEdit : FormBase
+    {
+        [SaveState]
+        int counter = 0;
+
+        int MessageId = 0;
+
+        public override async Task Load(MessageResult message)
+        {
+            counter++;
+        }
+
+        public override async Task Action(MessageResult message)
+        {
+            await message.ConfirmAction("");
+
+            switch (message.RawData ?? "")
+            {
+                case "back":
+
+                    var st = new Start();
+                    await NavigateTo(st);
+
+                    break;
+            }
+        }
+
+        public override async Task Render(MessageResult message)
+        {
+            var bf = new ButtonForm();
+            bf.AddButtonRow("Back", "back");
+
+            if (MessageId != 0)
+            {
+                await Device.Edit(MessageId, $"Your current count is at: {counter}", bf);
+            }
+            else
+            {
+                var m = await Device.Send($"Your current count is at: {counter}", bf, disableNotification: true);
+                MessageId = m.MessageId;
+            }
+
+        }
+
+    }
+}

Examples/AsyncFormUpdates/forms/AsyncFormUpdate.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Attributes;
+using TelegramBotBase.Base;
+using TelegramBotBase.Form;
+
+namespace AsyncFormUpdates.forms
+{
+    public class AsyncFormUpdate : AutoCleanForm
+    {
+        [SaveState]
+        int counter = 0;
+
+
+        public override async Task Load(MessageResult message)
+        {
+            counter++;
+        }
+
+        public override async Task Action(MessageResult message)
+        {
+            await message.ConfirmAction("");
+
+            switch (message.RawData ?? "")
+            {
+                case "back":
+
+                    var st = new Start();
+                    await NavigateTo(st);
+
+                    break;
+            }
+        }
+
+        public override async Task Render(MessageResult message)
+        {
+            var bf = new ButtonForm();
+            bf.AddButtonRow("Back", "back");
+
+            await Device.Send($"Your current count is at: {counter}", bf, disableNotification: true);
+        }
+
+
+    }
+}

Examples/AsyncFormUpdates/forms/Start.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Base;
+using TelegramBotBase.Form;
+
+namespace AsyncFormUpdates.forms
+{
+    public class Start : AutoCleanForm
+    {
+
+
+        public override async Task Action(MessageResult message)
+        {
+            await message.ConfirmAction("");
+
+            switch (message.RawData ?? "")
+            {
+                case "async":
+
+                    var afe = new AsyncFormEdit();
+                    await NavigateTo(afe);
+
+
+                    break;
+
+                case "async_del":
+
+                    var afu = new AsyncFormUpdate();
+                    await NavigateTo(afu);
+
+
+                    break;
+            }
+
+        }
+
+        public override async Task Render(MessageResult message)
+        {
+            var bf = new ButtonForm();
+
+            bf.AddButtonRow("Open Async Form with AutoCleanupForm", "async_del");
+
+            bf.AddButtonRow("Open Async Form with Edit", "async");
+
+            await Device.Send("Choose your option", bf);
+        }
+
+    }
+}

Examples/AsyncFormUpdates/packages.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="net472" />
+  <package id="System.Net.Requests" version="4.3.0" targetFramework="net472" />
+  <package id="Telegram.Bot" version="15.7.1" targetFramework="net472" />
+</packages>

README.md

@@ -77,6 +77,8 @@ Thanks !
 
     * [CheckedButtonList](#checked-button-list)
 
+    * [MultiToggleButton](#multi-toggle-button)
+
 - [Groups](#groups)
 	* [SplitterForm](#splitter-form)
 
@@ -814,6 +816,8 @@ await this.NavigateTo(cd);
 ### Checked Button List
 <img src="images/checkedbuttonlist.gif?raw=true" />
 
+### Multi Toggle Button
+<img src="images/multitogglebutton.gif?raw=true" />
 
 ## Groups
 
@@ -896,6 +900,7 @@ public class GroupForm : FormBase
                 case Telegram.Bot.Types.Enums.MessageType.MessagePinned:
                 case Telegram.Bot.Types.Enums.MessageType.GroupCreated:
                 case Telegram.Bot.Types.Enums.MessageType.SupergroupCreated:
+                case Telegram.Bot.Types.Enums.MessageType.ChannelCreated:
 
                     await OnGroupChanged(new GroupChangedEventArgs(message.MessageType, message));
 
@@ -1081,6 +1086,9 @@ Will allow you to run specific system commands or run/kill processes via Bot. Ha
 
 Will delete Join and Leave messages automatically in groups.
 
+- [Examples/AsyncFormUpdates/](Examples/AsyncFormUpdates/) 
+
+When you want to update forms async without any user interaction (message/action) before. Use the new InvokeMessageLoop method of BotBase.
 
 ---
 

TelegramBotBase/Args/ButtonClickedEventArgs.cs

@@ -16,6 +16,8 @@ namespace TelegramBotBase.Args
 
         public int Index { get; set; }
 
+        public object Tag { get; set; }
+
 
         public ButtonClickedEventArgs()
         {

TelegramBotBase/Args/MessageDeletedEventArgs.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Telegram.Bot.Types;
+
+namespace TelegramBotBase.Args
+{
+    public class MessageDeletedEventArgs
+    {
+        public int MessageId
+        {
+            get;set;
+        }
+
+        public MessageDeletedEventArgs(int messageId)
+        {
+            this.MessageId = messageId;
+        }
+
+    }
+}

TelegramBotBase/Args/PromptDialogCompletedEventArgs.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace TelegramBotBase.Args
+{
+    public class PromptDialogCompletedEventArgs
+    {
+        public object Tag { get; set; }
+
+        public String Value { get; set; }
+
+    }
+}

TelegramBotBase/Base/MessageResult.cs

@@ -20,12 +20,18 @@ namespace TelegramBotBase.Base
         {
             get
             {
-                return this.RawMessageData?.Message?.Chat.Id ?? this.RawCallbackData?.CallbackQuery.Message?.Chat.Id ?? 0;
+                return this.RawMessageData?.Message?.Chat.Id
+                    ?? this.RawCallbackData?.CallbackQuery.Message?.Chat.Id
+                    ?? Device?.DeviceId
+                    ?? 0;
             }
         }
 
         public DeviceSession Device
-        { get; set; }
+        {
+            get;
+            set;
+        }
 
         /// <summary>
         /// The message id
@@ -34,7 +40,9 @@ namespace TelegramBotBase.Base
         {
             get
             {
-                return this.Message?.MessageId ?? this.RawCallbackData?.CallbackQuery?.Message?.MessageId ?? 0;
+                return this.Message?.MessageId 
+                    ?? this.RawCallbackData?.CallbackQuery?.Message?.MessageId 
+                    ?? 0;
             }
         }
 
@@ -58,7 +66,8 @@ namespace TelegramBotBase.Base
         {
             get
             {
-                return this.RawMessageData?.Message?.Type ?? Telegram.Bot.Types.Enums.MessageType.Unknown;
+                return this.RawMessageData?.Message?.Type 
+                    ?? Telegram.Bot.Types.Enums.MessageType.Unknown;
             }
         }
 
@@ -175,6 +184,10 @@ namespace TelegramBotBase.Base
             }
         }
 
+        internal MessageResult()
+        {
+
+        }
 
         public MessageResult(Telegram.Bot.Args.MessageEventArgs rawdata)
         {

TelegramBotBase/BotBase.cs

@@ -72,6 +72,7 @@ namespace TelegramBotBase
         {
             this.SystemSettings = new Dictionary<eSettings, uint>();
 
+            SetSetting(eSettings.MaxNumberOfRetries, 5);
             SetSetting(eSettings.NavigationMaximum, 10);
             SetSetting(eSettings.LogAllMessages, false);
             SetSetting(eSettings.SkipAllMessages, false);
@@ -177,6 +178,8 @@ namespace TelegramBotBase
                 });
             }
 
+            DeviceSession.MaxNumberOfRetries = this.GetSetting(eSettings.MaxNumberOfRetries, 5);
+
             this.Client.TelegramClient.StartReceiving();
         }
 
@@ -230,7 +233,7 @@ namespace TelegramBotBase
 
                 ds?.OnMessageReceived(new MessageReceivedEventArgs(e.Message));
 
-                await Client_TryMessage(sender, e);
+                await Client_Loop(sender, e);
             }
             catch (Telegram.Bot.Exceptions.ApiRequestException ex)
             {
@@ -243,14 +246,86 @@ namespace TelegramBotBase
             }
         }
 
-        private async Task Client_TryMessage(object sender, MessageResult e)
+
+
+        //private async Task Client_TryMessage(object sender, MessageResult e)
+        //{
+        //    DeviceSession ds = e.Device;
+        //    if (ds == null)
+        //    {
+        //        ds = await this.Sessions.StartSession<T>(e.DeviceId);
+        //        e.Device = ds;
+
+        //        ds.LastMessage = e.Message;
+
+        //        OnSessionBegins(new SessionBeginEventArgs(e.DeviceId, ds));
+        //    }
+
+        //    ds.LastAction = DateTime.Now;
+        //    ds.LastMessage = e.Message;
+
+        //    //Is this a bot command ?
+        //    if (e.IsBotCommand && this.BotCommands.Count(a => "/" + a.Command == e.BotCommand) > 0)
+        //    {
+        //        var sce = new BotCommandEventArgs(e.BotCommand, e.BotCommandParameters, e.Message, ds.DeviceId, ds);
+        //        await OnBotCommand(sce);
+
+        //        if (sce.Handled)
+        //            return;
+        //    }
+
+        //    FormBase activeForm = null;
+
+        //    int i = 0;
+
+        //    //Should formulars get navigated (allow maximum of 10, to dont get loops)
+        //    do
+        //    {
+        //        i++;
+
+        //        //Reset navigation
+        //        ds.FormSwitched = false;
+
+        //        activeForm = ds.ActiveForm;
+
+        //        //Pre Loading Event
+        //        await activeForm.PreLoad(e);
+
+        //        //Send Load event to controls
+        //        await activeForm.LoadControls(e);
+
+        //        //Loading Event
+        //        await activeForm.Load(e);
+
+        //        //Is Attachment ? (Photo, Audio, Video, Contact, Location, Document)
+        //        if (e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Contact | e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Document | e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Location |
+        //            e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Photo | e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Video | e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Audio)
+        //        {
+        //            await activeForm.SentData(new DataResult(e));
+        //        }
+
+        //        //Render Event
+        //        if (!ds.FormSwitched)
+        //        {
+        //            await activeForm.RenderControls(e);
+
+        //            await activeForm.Render(e);
+        //        }
+
+        //        e.IsFirstHandler = false;
+
+        //    } while (ds.FormSwitched && i < this.GetSetting(eSettings.NavigationMaximum, 10));
+
+
+        //}
+
+        private async Task Client_Loop(object sender, MessageResult e)
         {
             DeviceSession ds = e.Device;
             if (ds == null)
             {
                 ds = await this.Sessions.StartSession<T>(e.DeviceId);
                 e.Device = ds;
-
                 ds.LastMessage = e.Message;
 
                 OnSessionBegins(new SessionBeginEventArgs(e.DeviceId, ds));
@@ -293,15 +368,41 @@ namespace TelegramBotBase
                 await activeForm.Load(e);
 
                 //Is Attachment ? (Photo, Audio, Video, Contact, Location, Document)
-                if (e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Contact | e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Document | e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Location |
+                if (e.MessageType == Telegram.Bot.Types.Enums.MessageType.Contact | e.MessageType == Telegram.Bot.Types.Enums.MessageType.Document | e.MessageType == Telegram.Bot.Types.Enums.MessageType.Location |
-                    e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Photo | e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Video | e.Message.Type == Telegram.Bot.Types.Enums.MessageType.Audio)
+                    e.MessageType == Telegram.Bot.Types.Enums.MessageType.Photo | e.MessageType == Telegram.Bot.Types.Enums.MessageType.Video | e.MessageType == Telegram.Bot.Types.Enums.MessageType.Audio)
                 {
                     await activeForm.SentData(new DataResult(e));
                 }
 
-                //Render Event
+                //Action Event
+                if (!ds.FormSwitched && e.IsAction)
+                {
+                    //Send Action event to controls
+                    await activeForm.ActionControls(e);
+
+                    //Send Action event to form itself
+                    await activeForm.Action(e);
+
+                    if (!e.Handled)
+                    {
+                        var uhc = new UnhandledCallEventArgs(e.Message.Text, e.RawData, ds.DeviceId, e.MessageId, e.Message, ds);
+                        OnUnhandledCall(uhc);
+
+                        if (uhc.Handled)
+                        {
+                            e.Handled = true;
+                            if (!ds.FormSwitched)
+                            {
+                                break;
+                            }
+                        }
+                    }
+
+                }
+
                 if (!ds.FormSwitched)
                 {
+                    //Render Event
                     await activeForm.RenderControls(e);
 
                     await activeForm.Render(e);
@@ -314,6 +415,38 @@ namespace TelegramBotBase
 
         }
 
+        /// <summary>
+        /// This will invoke the full message loop for the device even when no "userevent" like message or action has been raised.
+        /// </summary>
+        /// <param name="DeviceId">Contains the device/chat id of the device to update.</param>
+        public async Task InvokeMessageLoop(long DeviceId)
+        {
+            var mr = new MessageResult();
+
+            await InvokeMessageLoop(DeviceId, mr);
+        }
+
+        /// <summary>
+        /// This will invoke the full message loop for the device even when no "userevent" like message or action has been raised.
+        /// </summary>
+        /// <param name="DeviceId">Contains the device/chat id of the device to update.</param>
+        /// <param name="e"></param>
+        public async Task InvokeMessageLoop(long DeviceId, MessageResult e)
+        {
+            try
+            {
+                DeviceSession ds = this.Sessions.GetSession(DeviceId);
+                e.Device = ds;
+
+                await Client_Loop(this, e);
+            }
+            catch (Exception ex)
+            {
+                DeviceSession ds = this.Sessions.GetSession(DeviceId);
+                OnException(new SystemExceptionEventArgs(e.Message.Text, DeviceId, ds, ex));
+            }
+        }
+
         private async void Client_MessageEdit(object sender, MessageResult e)
         {
             if (this.GetSetting(eSettings.SkipAllMessages, false))
@@ -363,12 +496,12 @@ namespace TelegramBotBase
             //When form has been switched due navigation within the edit method, reopen Client_Message
             if (ds.FormSwitched)
             {
-                await Client_TryMessage(sender, e);
+                await Client_Loop(sender, e);
             }
 
         }
 
-        private void Client_Action(object sender, MessageResult e)
+        private async void Client_Action(object sender, MessageResult e)
         {
             try
             {
@@ -380,7 +513,7 @@ namespace TelegramBotBase
                     OnMessage(new MessageIncomeEventArgs(e.DeviceId, ds, e));
                 }
 
-                Client_TryAction(sender, e);
+                await Client_Loop(sender, e);
             }
             catch (Exception ex)
             {
@@ -389,80 +522,80 @@ namespace TelegramBotBase
             }
         }
 
-        private async void Client_TryAction(object sender, MessageResult e)
+        //private async void Client_TryAction(object sender, MessageResult e)
-        {
+        //{
-            DeviceSession ds = e.Device;
+        //    DeviceSession ds = e.Device;
-            if (ds == null)
+        //    if (ds == null)
-            {
+        //    {
-                ds = await this.Sessions.StartSession<T>(e.DeviceId);
+        //        ds = await this.Sessions.StartSession<T>(e.DeviceId);
-                e.Device = ds;
+        //        e.Device = ds;
-            }
+        //    }
 
-            ds.LastAction = DateTime.Now;
+        //    ds.LastAction = DateTime.Now;
-            ds.LastMessage = e.Message;
+        //    ds.LastMessage = e.Message;
 
-            FormBase activeForm = null;
+        //    FormBase activeForm = null;
 
-            int i = 0;
+        //    int i = 0;
 
-            //Should formulars get navigated (allow maximum of 10, to dont get loops)
+        //    //Should formulars get navigated (allow maximum of 10, to dont get loops)
-            do
+        //    do
-            {
+        //    {
-                i++;
+        //        i++;
 
-                //Reset navigation
+        //        //Reset navigation
-                ds.FormSwitched = false;
+        //        ds.FormSwitched = false;
 
-                activeForm = ds.ActiveForm;
+        //        activeForm = ds.ActiveForm;
 
-                //Pre Loading Event
+        //        //Pre Loading Event
-                await activeForm.PreLoad(e);
+        //        await activeForm.PreLoad(e);
 
-                //Send Load event to controls
+        //        //Send Load event to controls
-                await activeForm.LoadControls(e);
+        //        await activeForm.LoadControls(e);
 
-                //Loading Event
+        //        //Loading Event
-                await activeForm.Load(e);
+        //        await activeForm.Load(e);
 
-                //Action Event
+        //        //Action Event
-                if (!ds.FormSwitched)
+        //        if (!ds.FormSwitched)
-                {
+        //        {
-                    //Send Action event to controls
+        //            //Send Action event to controls
-                    await activeForm.ActionControls(e);
+        //            await activeForm.ActionControls(e);
 
-                    //Send Action event to form itself
+        //            //Send Action event to form itself
-                    await activeForm.Action(e);
+        //            await activeForm.Action(e);
 
-                    if (!e.Handled)
+        //            if (!e.Handled)
-                    {
+        //            {
-                        var uhc = new UnhandledCallEventArgs(e.Message.Text, e.RawData, ds.DeviceId, e.MessageId, e.Message, ds);
+        //                var uhc = new UnhandledCallEventArgs(e.Message.Text, e.RawData, ds.DeviceId, e.MessageId, e.Message, ds);
-                        OnUnhandledCall(uhc);
+        //                OnUnhandledCall(uhc);
 
-                        if (uhc.Handled)
+        //                if (uhc.Handled)
-                        {
+        //                {
-                            e.Handled = true;
+        //                    e.Handled = true;
-                            if (!ds.FormSwitched)
+        //                    if (!ds.FormSwitched)
-                            {
+        //                    {
-                                break;
+        //                        break;
-                            }
+        //                    }
-                        }
+        //                }
-                    }
+        //            }
 
-                }
+        //        }
 
-                //Render Event
+        //        //Render Event
-                if (!ds.FormSwitched)
+        //        if (!ds.FormSwitched)
-                {
+        //        {
-                    await activeForm.RenderControls(e);
+        //            await activeForm.RenderControls(e);
 
-                    await activeForm.Render(e);
+        //            await activeForm.Render(e);
-                }
+        //        }
 
-                e.IsFirstHandler = false;
+        //        e.IsFirstHandler = false;
 
-            } while (ds.FormSwitched && i < this.GetSetting(eSettings.NavigationMaximum, 10));
+        //    } while (ds.FormSwitched && i < this.GetSetting(eSettings.NavigationMaximum, 10));
 
-        }
+        //}
 
         /// <summary>
         /// This method will update all local created bot commands to the botfather.

TelegramBotBase/Commands/Extensions.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Telegram.Bot.Types;
+
+namespace TelegramBotBase.Commands
+{
+    public static class Extensions
+    {
+        /// <summary>
+        /// Adding the default /start command with a description.
+        /// </summary>
+        /// <param name="cmds"></param>
+        /// <param name="description"></param>
+        public static void AddStartCommand(this List<BotCommand> cmds, String description)
+        {
+            cmds.Add(new BotCommand() { Command = "start", Description = description });
+        }
+
+        /// <summary>
+        /// Adding the default /help command with a description.
+        /// </summary>
+        /// <param name="cmds"></param>
+        /// <param name="description"></param>
+        public static void AddHelpCommand(this List<BotCommand> cmds, String description)
+        {
+            cmds.Add(new BotCommand() { Command = "help", Description = description });
+        }
+
+        /// <summary>
+        /// Adding the default /settings command with a description.
+        /// </summary>
+        /// <param name="cmds"></param>
+        /// <param name="description"></param>
+        public static void AddSettingsCommand(this List<BotCommand> cmds, String description)
+        {
+            cmds.Add(new BotCommand() { Command = "settings", Description = description });
+        }
+    }
+}

TelegramBotBase/Constants/Telegram.cs

@@ -21,5 +21,7 @@ namespace TelegramBotBase.Constants
 
         public const int MaxReplyKeyboardCols = 12;
 
+        public const int MessageDeletionsPerSecond = 30;
+
     }
 }

TelegramBotBase/Controls/Hybrid/ButtonGrid.cs

@@ -159,6 +159,22 @@ namespace TelegramBotBase.Controls.Hybrid
             }
         }
 
+        public override void Init()
+        {
+            this.Device.MessageDeleted += Device_MessageDeleted;
+        }
+
+        private void Device_MessageDeleted(object sender, MessageDeletedEventArgs e)
+        {
+            if (this.MessageId == null)
+                return;
+
+            if (e.MessageId != this.MessageId)
+                return;
+
+            this.MessageId = null;
+        }
+
         public async override Task Load(MessageResult result)
         {
             if (this.KeyboardType != eKeyboardType.ReplyKeyboard)
@@ -396,14 +412,20 @@ namespace TelegramBotBase.Controls.Hybrid
 
                 case eKeyboardType.InlineKeyBoard:
 
+                    //Try to edit message if message id is available
+                    //When the returned message is null then the message has been already deleted, resend it
                     if (this.MessageId != null)
                     {
                         m = await this.Device.Edit(this.MessageId.Value, this.Title, (InlineKeyboardMarkup)form);
+                        if (m != null)
+                        {
+                            this.MessageId = m.MessageId;
+                            return;
+                        }
                     }
-                    else
+
-                    {
+                    //When no message id is available or it has been deleted due the use of AutoCleanForm re-render automatically
-                        m = await this.Device.Send(this.Title, (InlineKeyboardMarkup)form, disableNotification: true, parseMode: MessageParseMode, MarkdownV2AutoEscape: false);
+                    m = await this.Device.Send(this.Title, (InlineKeyboardMarkup)form, disableNotification: true, parseMode: MessageParseMode, MarkdownV2AutoEscape: false);
-                    }
 
                     break;
             }
@@ -573,6 +595,11 @@ namespace TelegramBotBase.Controls.Hybrid
             {
                 this.Updated();
             }
+            else
+            {
+                //Remove event handler
+                this.Device.MessageDeleted -= Device_MessageDeleted;
+            }
         }
 
         /// <summary>

TelegramBotBase/Controls/Hybrid/TaggedButtonGrid.cs

@@ -170,6 +170,22 @@ namespace TelegramBotBase.Controls.Hybrid
             }
         }
 
+        public override void Init()
+        {
+            this.Device.MessageDeleted += Device_MessageDeleted;
+        }
+
+        private void Device_MessageDeleted(object sender, MessageDeletedEventArgs e)
+        {
+            if (this.MessageId == null)
+                return;
+
+            if (e.MessageId != this.MessageId)
+                return;
+
+            this.MessageId = null;
+        }
+
         public async override Task Load(MessageResult result)
         {
             if (this.KeyboardType != eKeyboardType.ReplyKeyboard)
@@ -185,10 +201,7 @@ namespace TelegramBotBase.Controls.Hybrid
                         ?? SubHeadLayoutButtonRow?.FirstOrDefault(a => a.Text.Trim() == result.MessageText)
                         ?? ButtonsForm.ToList().FirstOrDefault(a => a.Text.Trim() == result.MessageText);
 
-            var index = HeadLayoutButtonRow?.IndexOf(button)
+            var index = ButtonsForm.FindRowByButton(button);
-                        ?? SubHeadLayoutButtonRow?.IndexOf(button)
-                        ?? ButtonsForm.ToList().IndexOf(button);
-
 
 
             switch (this.SelectedViewIndex)
@@ -326,9 +339,7 @@ namespace TelegramBotBase.Controls.Hybrid
                         ?? SubHeadLayoutButtonRow?.FirstOrDefault(a => a.Value == result.RawData)
                         ?? ButtonsForm.ToList().FirstOrDefault(a => a.Value == result.RawData);
 
-            var index = HeadLayoutButtonRow?.IndexOf(button)
+            var index = ButtonsForm.FindRowByButton(button);
-                        ?? SubHeadLayoutButtonRow?.IndexOf(button)
-                        ?? ButtonsForm.ToList().IndexOf(button);
 
             if (button != null)
             {
@@ -521,15 +532,21 @@ namespace TelegramBotBase.Controls.Hybrid
 
                 case eKeyboardType.InlineKeyBoard:
 
+
+                    //Try to edit message if message id is available
+                    //When the returned message is null then the message has been already deleted, resend it
                     if (this.MessageId != null)
                     {
                         m = await this.Device.Edit(this.MessageId.Value, this.Title, (InlineKeyboardMarkup)form);
-                    }
+                        if (m != null)
-                    else
+                        {
-                    {
+                            this.MessageId = m.MessageId;
-                        m = await this.Device.Send(this.Title, (InlineKeyboardMarkup)form, disableNotification: true, parseMode: MessageParseMode, MarkdownV2AutoEscape: false);
+                            return;
+                        }
                     }
 
+                    //When no message id is available or it has been deleted due the use of AutoCleanForm re-render automatically
+                    m = await this.Device.Send(this.Title, (InlineKeyboardMarkup)form, disableNotification: true, parseMode: MessageParseMode, MarkdownV2AutoEscape: false);
                     break;
             }
 
@@ -782,6 +799,11 @@ namespace TelegramBotBase.Controls.Hybrid
             {
                 this.Updated();
             }
+            else
+            {
+                //Remove event handler
+                this.Device.MessageDeleted -= Device_MessageDeleted;
+            }
         }
 
         /// <summary>

TelegramBotBase/Controls/Inline/MultiToggleButton.cs

@@ -0,0 +1,164 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Base;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBase.Controls.Inline
+{
+    public class MultiToggleButton : ControlBase
+    {
+        /// <summary>
+        /// This contains the selected icon.
+        /// </summary>
+        public String SelectedIcon { get; set; } = Localizations.Default.Language["MultiToggleButton_SelectedIcon"];
+
+        /// <summary>
+        /// This will appear on the ConfirmAction message (if not empty)
+        /// </summary>
+        public String ChangedString { get; set; } = Localizations.Default.Language["MultiToggleButton_Changed"];
+
+        /// <summary>
+        /// This holds the title of the control.
+        /// </summary>
+        public String Title { get; set; } = Localizations.Default.Language["MultiToggleButton_Title"];
+
+        public int? MessageId { get; set; }
+
+        private bool RenderNecessary = true;
+
+        private static readonly object __evToggled = new object();
+
+        private readonly EventHandlerList Events = new EventHandlerList();
+
+        /// <summary>
+        /// This will hold all options available.
+        /// </summary>
+        public List<ButtonBase> Options { get; set; }
+
+        /// <summary>
+        /// This will set if an empty selection (null) is allowed.
+        /// </summary>
+        public bool AllowEmptySelection { get; set; } = true;
+
+
+        public MultiToggleButton()
+        {
+            Options = new List<ButtonBase>();
+        }
+
+        public event EventHandler Toggled
+        {
+            add
+            {
+                this.Events.AddHandler(__evToggled, value);
+            }
+            remove
+            {
+                this.Events.RemoveHandler(__evToggled, value);
+            }
+        }
+
+        public void OnToggled(EventArgs e)
+        {
+            (this.Events[__evToggled] as EventHandler)?.Invoke(this, e);
+        }
+
+        public override async Task Action(MessageResult result, String value = null)
+        {
+            if (result.Handled)
+                return;
+
+            await result.ConfirmAction(this.ChangedString);
+
+            switch (value ?? "unknown")
+            {
+                default:
+
+                    var s = value.Split('$');
+
+                    if (s[0] == "check" && s.Length > 1)
+                    {
+                        int index = 0;
+                        if (!int.TryParse(s[1], out index))
+                        {
+                            return;
+                        }
+
+                        if(SelectedOption== null || SelectedOption != this.Options[index])
+                        {
+                            this.SelectedOption = this.Options[index];
+                            OnToggled(new EventArgs());
+                        }
+                        else if(this.AllowEmptySelection)
+                        {
+                            this.SelectedOption = null;
+                            OnToggled(new EventArgs());
+                        }
+
+                        RenderNecessary = true;
+
+                        return;
+                    }
+
+
+                    RenderNecessary = false;
+
+                    break;
+
+            }
+
+            result.Handled = true;
+
+        }
+
+        public override async Task Render(MessageResult result)
+        {
+            if (!RenderNecessary)
+                return;
+
+            var bf = new ButtonForm(this);
+
+            var lst = new List<ButtonBase>();
+            foreach (var o in this.Options)
+            {
+                var index = this.Options.IndexOf(o);
+                if (o == this.SelectedOption)
+                {
+                    lst.Add(new ButtonBase(SelectedIcon + " " + o.Text, "check$" + index));
+                    continue;
+                }
+
+                lst.Add(new ButtonBase(o.Text, "check$" + index));
+            }
+
+            bf.AddButtonRow(lst);
+
+            if (this.MessageId != null)
+            {
+                var m = await this.Device.Edit(this.MessageId.Value, this.Title, bf);
+            }
+            else
+            {
+                var m = await this.Device.Send(this.Title, bf, disableNotification: true);
+                if (m != null)
+                {
+                    this.MessageId = m.MessageId;
+                }
+            }
+
+            this.RenderNecessary = false;
+
+
+        }
+
+        public ButtonBase SelectedOption
+        {
+            get; set;
+        }
+
+    }
+}

TelegramBotBase/Enums/eSettings.cs

@@ -27,9 +27,14 @@ namespace TelegramBotBase.Enums
         /// <summary>
         /// Does stick to the console event handler and saves all sessions on exit.
         /// </summary>
-        SaveSessionsOnConsoleExit = 4
+        SaveSessionsOnConsoleExit = 4,
 
 
+        /// <summary>
+        /// Indicates the maximum number of times a request that received error 
+        /// 429 will be sent again after a timeout until it receives code 200 or an error code not equal to 429.
+        /// </summary>
+        MaxNumberOfRetries = 5,
 
     }
 }

TelegramBotBase/Form/ArrayPromptDialog.cs

@@ -16,8 +16,16 @@ namespace TelegramBotBase.Form
     [IgnoreState]
     public class ArrayPromptDialog : FormBase
     {
+        /// <summary>
+        /// The message the users sees.
+        /// </summary>
         public String Message { get; set; }
 
+        /// <summary>
+        /// An additional optional value.
+        /// </summary>
+        public object Tag { get; set; }
+
         public ButtonBase[][] Buttons { get; set; }
 
         [Obsolete]
@@ -70,7 +78,7 @@ namespace TelegramBotBase.Form
                 return;
             }
 
-            OnButtonClicked(new ButtonClickedEventArgs(button));
+            OnButtonClicked(new ButtonClickedEventArgs(button) { Tag = this.Tag });
 
             FormBase fb = ButtonForms.ContainsKey(call.Value) ? ButtonForms[call.Value] : null;
 

TelegramBotBase/Form/AutoCleanForm.cs

@@ -33,13 +33,12 @@ namespace TelegramBotBase.Form
             this.DeleteMode = eDeleteMode.OnEveryCall;
             this.DeleteSide = eDeleteSide.BotOnly;
 
-            this.Init +=  AutoCleanForm_Init;
+            this.Init += AutoCleanForm_Init;
 
             this.Closed += AutoCleanForm_Closed;
 
         }
 
-
         private async Task AutoCleanForm_Init(object sender, InitEventArgs e)
         {
             if (this.Device == null)
@@ -130,12 +129,22 @@ namespace TelegramBotBase.Form
         {
             while (this.OldMessages.Count > 0)
             {
-                if (!await this.Device.DeleteMessage(this.OldMessages[0]))
+                var tasks = new List<Task>();
+                var msgs = this.OldMessages.Take(Constants.Telegram.MessageDeletionsPerSecond);
+
+                foreach (var msg in msgs)
                 {
-                    //Message can't be deleted cause it seems not to exist anymore
+                    tasks.Add(this.Device.DeleteMessage(msg));
-                    if (this.OldMessages.Count > 0)
-                        this.OldMessages.RemoveAt(0);
                 }
+
+                await Task.WhenAll(tasks);
+
+                foreach(var m in msgs)
+                {
+                    Device.OnMessageDeleted(new MessageDeletedEventArgs(m));
+                }
+
+                this.OldMessages.RemoveRange(0, msgs.Count());
             }            
         }
     }

TelegramBotBase/Form/ConfirmDialog.cs

@@ -13,8 +13,16 @@ namespace TelegramBotBase.Form
     [IgnoreState]
     public class ConfirmDialog : ModalDialog
     {
+        /// <summary>
+        /// The message the users sees.
+        /// </summary>
         public String Message { get; set; }
 
+        /// <summary>
+        /// An additional optional value.
+        /// </summary>
+        public object Tag { get; set; }
+
         /// <summary>
         /// Automatically close form on button click
         /// </summary>
@@ -77,7 +85,7 @@ namespace TelegramBotBase.Form
                 return;
             }
 
-            OnButtonClicked(new ButtonClickedEventArgs(button));
+            OnButtonClicked(new ButtonClickedEventArgs(button) { Tag = this.Tag });
 
             if (AutoCloseOnClick)
                 await CloseForm();

TelegramBotBase/Form/GroupForm.cs

@@ -41,6 +41,7 @@ namespace TelegramBotBase.Form
                 case Telegram.Bot.Types.Enums.MessageType.MessagePinned:
                 case Telegram.Bot.Types.Enums.MessageType.GroupCreated:
                 case Telegram.Bot.Types.Enums.MessageType.SupergroupCreated:
+                case Telegram.Bot.Types.Enums.MessageType.ChannelCreated:
 
                     await OnGroupChanged(new GroupChangedEventArgs(message.MessageType, message));
 

TelegramBotBase/Form/PromptDialog.cs

@@ -6,6 +6,7 @@ using System.Text;
 using System.Threading.Tasks;
 using Telegram.Bot.Types;
 using Telegram.Bot.Types.ReplyMarkups;
+using TelegramBotBase.Args;
 using TelegramBotBase.Attributes;
 using TelegramBotBase.Base;
 
@@ -14,10 +15,21 @@ namespace TelegramBotBase.Form
     [IgnoreState]
     public class PromptDialog : ModalDialog
     {
+        /// <summary>
+        /// The message the users sees.
+        /// </summary>
         public String Message { get; set; }
 
+        /// <summary>
+        /// The returned text value by the user.
+        /// </summary>
         public String Value { get; set; }
 
+        /// <summary>
+        /// An additional optional value.
+        /// </summary>
+        public object Tag { get; set; }
+
         private EventHandlerList __Events { get; set; } = new EventHandlerList();
 
         private static object __evCompleted { get; } = new object();
@@ -86,13 +98,13 @@ namespace TelegramBotBase.Form
 
             message.Handled = true;
 
-            OnCompleted(new EventArgs());
+            OnCompleted(new PromptDialogCompletedEventArgs() { Tag = this.Tag, Value = this.Value });
 
             await this.CloseForm();
         }
 
 
-        public event EventHandler<EventArgs> Completed
+        public event EventHandler<PromptDialogCompletedEventArgs> Completed
         {
             add
             {
@@ -104,9 +116,9 @@ namespace TelegramBotBase.Form
             }
         }
 
-        public void OnCompleted(EventArgs e)
+        public void OnCompleted(PromptDialogCompletedEventArgs e)
         {
-            (this.__Events[__evCompleted] as EventHandler<EventArgs>)?.Invoke(this, e);
+            (this.__Events[__evCompleted] as EventHandler<PromptDialogCompletedEventArgs>)?.Invoke(this, e);
         }
 
     }

TelegramBotBase/Localizations/English.cs

@@ -26,6 +26,10 @@ namespace TelegramBotBase.Localizations
             Values["ToggleButton_OnIcon"] = "⚫";
             Values["ToggleButton_OffIcon"] = "⚪";
             Values["ToggleButton_Title"] = "Toggle";
+            Values["ToggleButton_Changed"] = "Choosen";
+            Values["MultiToggleButton_SelectedIcon"] = "✅";
+            Values["MultiToggleButton_Title"] = "Multi-Toggle";
+            Values["MultiToggleButton_Changed"] = "Choosen";
             Values["PromptDialog_Back"] = "Back";
             Values["ToggleButton_Changed"] = "Setting changed";
         }

TelegramBotBase/Localizations/Localization.cs

@@ -36,6 +36,10 @@ namespace TelegramBotBase.Localizations
             Values["ToggleButton_OnIcon"] = "⚫";
             Values["ToggleButton_OffIcon"] = "⚪";
             Values["ToggleButton_Title"] = "Schalter";
+            Values["ToggleButton_Changed"] = "Ausgewählt";
+            Values["MultiToggleButton_SelectedIcon"] = "✅";
+            Values["MultiToggleButton_Title"] = "Mehrfach-Schalter";
+            Values["MultiToggleButton_Changed"] = "Ausgewählt";
             Values["PromptDialog_Back"] = "Zurück";
             Values["ToggleButton_Changed"] = "Einstellung geändert";
             

TelegramBotBase/SessionBase.cs

@@ -198,6 +198,8 @@ namespace TelegramBotBase
                         catch (ArgumentException ex)
                         {
 
+                            CustomConversionChecks(form, p, f);
+
                         }
                         catch
                         {
@@ -238,6 +240,35 @@ namespace TelegramBotBase
 
         }
 
+        private static void CustomConversionChecks(FormBase form, KeyValuePair<string, object> p, System.Reflection.PropertyInfo f)
+        {
+            //Newtonsoft Int64/Int32 converter issue
+            if (f.PropertyType == typeof(Int32))
+            {
+                int i = 0;
+                if(int.TryParse(p.Value.ToString(), out i))
+                {
+                    f.SetValue(form, i);
+                }
+                return;
+            }
+
+            //Newtonsoft Double/Decimal converter issue
+            if(f.PropertyType == typeof(Decimal) | f.PropertyType == typeof(Nullable<Decimal>))
+            {
+                decimal d = 0;
+                if(decimal.TryParse(p.Value.ToString(), out d))
+                {
+                    f.SetValue(form, d);
+                }
+                return;
+            }
+
+
+        }
+
+
+
         /// <summary>
         /// Saves all open states into the machine.
         /// </summary>

TelegramBotBase/Sessions/DeviceSession.cs

@@ -119,6 +119,7 @@ namespace TelegramBotBase.Sessions
 
         private static object __evMessageSent = new object();
         private static object __evMessageReceived = new object();
+        private static object __evMessageDeleted = new object();
 
         public DeviceSession()
         {
@@ -769,20 +770,24 @@ namespace TelegramBotBase.Sessions
         /// <returns></returns>
         public async Task<T> API<T>(Func<Telegram.Bot.TelegramBotClient, Task<T>> call)
         {
-            try
+            var numberOfTries = 0;
+            while (numberOfTries < DeviceSession.MaxNumberOfRetries)
             {
-                return await call(this.Client.TelegramClient);
+                try
-            }
-            catch (ApiRequestException ex)
-            {
-                if (ex.Parameters != null)
                 {
-                    await Task.Delay(ex.Parameters.RetryAfter);
+                    return await call(Client.TelegramClient);
+                }
+                catch (ApiRequestException ex)
+                {
+                    if (ex.ErrorCode != 429)
+                        throw;
 
-                    return await call(this.Client.TelegramClient);
+                    if (ex.Parameters != null)
+                        await Task.Delay(ex.Parameters.RetryAfter * 1000);
+
+                    numberOfTries++;
                 }
             }
-
             return default(T);
         }
 
@@ -793,17 +798,23 @@ namespace TelegramBotBase.Sessions
         /// <returns></returns>
         public async Task API(Func<Telegram.Bot.TelegramBotClient, Task> call)
         {
-            try
+            var numberOfTries = 0;
+            while (numberOfTries < DeviceSession.MaxNumberOfRetries)
             {
-                await call(this.Client.TelegramClient);
+                try
-            }
-            catch (ApiRequestException ex)
-            {
-                if (ex.Parameters != null)
                 {
-                    await Task.Delay(ex.Parameters.RetryAfter);
+                    await call(Client.TelegramClient);
+                    return;
+                }
+                catch (ApiRequestException ex)
+                {
+                    if (ex.ErrorCode != 429)
+                        throw;
 
-                    await call(this.Client.TelegramClient);
+                    if (ex.Parameters != null)
+                        await Task.Delay(ex.Parameters.RetryAfter * 1000);
+
+                    numberOfTries++;
                 }
             }
         }
@@ -853,6 +864,37 @@ namespace TelegramBotBase.Sessions
             (this.__Events[__evMessageReceived] as EventHandler<MessageReceivedEventArgs>)?.Invoke(this, e);
         }
 
+        /// <summary>
+        /// Eventhandler for deleting messages
+        /// </summary>
+        public event EventHandler<MessageDeletedEventArgs> MessageDeleted
+        {
+            add
+            {
+                this.__Events.AddHandler(__evMessageDeleted, value);
+            }
+            remove
+            {
+                this.__Events.RemoveHandler(__evMessageDeleted, value);
+            }
+        }
+
+
+        public void OnMessageDeleted(MessageDeletedEventArgs e)
+        {
+            (this.__Events[__evMessageDeleted] as EventHandler<MessageDeletedEventArgs>)?.Invoke(this, e);
+        }
+
         #endregion
+
+        #region "Static"
+
+        /// <summary>
+        /// Indicates the maximum number of times a request that received error 
+        /// 429 will be sent again after a timeout until it receives code 200 or an error code not equal to 429.
+        /// </summary>
+        public static uint MaxNumberOfRetries { get; set; }
+
+        #endregion "Static"
     }
 }

TelegramBotBaseTest/Tests/Controls/MultiToggleButtons.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Args;
+using TelegramBotBase.Controls;
+using TelegramBotBase.Controls.Inline;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBaseTest.Tests.Controls
+{
+    public class MultiToggleButtons : AutoCleanForm
+    {
+        public MultiToggleButtons()
+        {
+            this.DeleteMode = TelegramBotBase.Enums.eDeleteMode.OnLeavingForm;
+
+            this.Init += ToggleButtons_Init;
+        }
+
+        private async Task ToggleButtons_Init(object sender, InitEventArgs e)
+        {
+
+            var mtb = new MultiToggleButton();
+
+            mtb.Options = new List<ButtonBase>() { new ButtonBase("Option 1", "1"), new ButtonBase("Option 2", "2"), new ButtonBase("Option 3", "3") };
+            mtb.SelectedOption = mtb.Options.FirstOrDefault();
+            mtb.Toggled += Tb_Toggled;
+            this.AddControl(mtb);
+
+            mtb = new MultiToggleButton();
+
+            mtb.Options = new List<ButtonBase>() { new ButtonBase("Option 4", "4"), new ButtonBase("Option 5", "5"), new ButtonBase("Option 6", "6") };
+            mtb.SelectedOption = mtb.Options.FirstOrDefault();
+            mtb.AllowEmptySelection = false;
+            mtb.Toggled += Tb_Toggled;
+            this.AddControl(mtb);
+        }
+
+        private void Tb_Toggled(object sender, EventArgs e)
+        {
+            var tb = sender as MultiToggleButton;
+            if (tb.SelectedOption != null)
+            {
+                Console.WriteLine(tb.ID.ToString() + " was pressed, and toggled to " + tb.SelectedOption.Value);
+                return;
+            }
+
+            Console.WriteLine("Selection for " + tb.ID.ToString() + " has been removed.");
+        }
+    }
+}

TelegramBotBaseTest/Tests/Menu.cs

@@ -140,6 +140,17 @@ namespace TelegramBotBaseTest.Tests
                     await this.NavigateTo(tb);
 
                     break;
+
+                case "multitogglebuttons":
+
+                    message.Handled = true;
+
+                    var mtb = new Controls.MultiToggleButtons();
+
+                    await this.NavigateTo(mtb);
+
+                    break;
+
                 case "buttongrid":
 
                     message.Handled = true;
@@ -217,6 +228,8 @@ namespace TelegramBotBaseTest.Tests
 
             btn.AddButtonRow(new ButtonBase("#11 ToggleButtons", new CallbackData("a", "togglebuttons").Serialize()));
 
+            btn.AddButtonRow(new ButtonBase("#11.2 MultiToggleButtons", new CallbackData("a", "multitogglebuttons").Serialize()));
+
             btn.AddButtonRow(new ButtonBase("#12 ButtonGrid", new CallbackData("a", "buttongrid").Serialize()));
 
             btn.AddButtonRow(new ButtonBase("#13 ButtonGrid Paging & Filter", new CallbackData("a", "buttongridfilter").Serialize()));