diff --git a/TelegramBaseTest/TelegramBaseTest.csproj b/TelegramBaseTest/TelegramBaseTest.csproj
index 959f738..79c8b17 100644
--- a/TelegramBaseTest/TelegramBaseTest.csproj
+++ b/TelegramBaseTest/TelegramBaseTest.csproj
@@ -32,9 +32,19 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release Net45|AnyCPU'">
+    <OutputPath>bin\Release Net45\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>..\packages\Newtonsoft.Json.12.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\packages\Newtonsoft.Json.12.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
@@ -45,14 +55,19 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Xml" />
-    <Reference Include="Telegram.Bot, Version=14.10.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\Telegram.Bot.14.10.0\lib\net45\Telegram.Bot.dll</HintPath>
+    <Reference Include="Telegram.Bot, Version=14.12.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\Telegram.Bot.14.12.0\lib\net45\Telegram.Bot.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Tests\ButtonTestForm.cs" />
+    <Compile Include="Tests\Controls\ButtonGridForm.cs" />
+    <Compile Include="Tests\Controls\CalendarPickerForm.cs" />
+    <Compile Include="Tests\Controls\MonthPickerForm.cs" />
+    <Compile Include="Tests\Controls\ToggleButtons.cs" />
+    <Compile Include="Tests\Controls\TreeViewForms.cs" />
     <Compile Include="Tests\DataForm.cs" />
     <Compile Include="Tests\ProgressTest.cs" />
     <Compile Include="Tests\Register\PerForm.cs" />
diff --git a/TelegramBotBase/Controls/ButtonGrid.cs b/TelegramBotBase/Controls/ButtonGrid.cs
index dc48c68..898a4da 100644
--- a/TelegramBotBase/Controls/ButtonGrid.cs
+++ b/TelegramBotBase/Controls/ButtonGrid.cs
@@ -25,19 +25,7 @@ namespace TelegramBotBase.Controls
 
         public ButtonForm ButtonsForm { get; set; }
 
-        public int? MessageId
-        {
-            get
-            {
-                return m_iMessageId;
-            }
-            set
-            {
-                m_iMessageId = value;
-            }
-        }
-
-        private int? m_iMessageId = null;
+        public int? MessageId { get; set; }
 
         /// <summary>
         /// Defines which type of Button Keyboard should be rendered.
diff --git a/TelegramBotBase/TelegramBotBase.csproj b/TelegramBotBase/TelegramBotBase.csproj
index 4fd1a1b..502bbb3 100644
--- a/TelegramBotBase/TelegramBotBase.csproj
+++ b/TelegramBotBase/TelegramBotBase.csproj
@@ -31,6 +31,16 @@
     <WarningLevel>4</WarningLevel>
     <DocumentationFile>bin\Release\TelegramBotBase.xml</DocumentationFile>
   </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release Net45|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\net45\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
+    <DocumentationFile>bin\Release\net45\TelegramBotBase.xml</DocumentationFile>
+  </PropertyGroup>
   <PropertyGroup>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
   </PropertyGroup>
@@ -49,11 +59,14 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Base\Async.cs" />
     <Compile Include="Base\ButtonClickedEventArgs.cs" />
     <Compile Include="Base\ControlBase.cs" />
     <Compile Include="Base\DataResult.cs" />
+    <Compile Include="Base\InitEventArgs.cs" />
     <Compile Include="Base\MessageClient.cs" />
     <Compile Include="Base\MessageIncomeResult.cs" />
+    <Compile Include="Base\MessageReceivedEventArgs.cs" />
     <Compile Include="Base\MessageResult.cs" />
     <Compile Include="Base\MessageSentEventArgs.cs" />
     <Compile Include="Base\ResultBase.cs" />
@@ -62,7 +75,19 @@
     <Compile Include="Base\UnhandledCallEventArgs.cs" />
     <Compile Include="Base\SystemCallEventArgs.cs" />
     <Compile Include="BotBase.cs" />
+    <Compile Include="Constants\Telegram.cs" />
+    <Compile Include="Controls\ButtonGrid.cs" />
+    <Compile Include="Controls\CalendarPicker.cs" />
+    <Compile Include="Controls\MonthPicker.cs" />
     <Compile Include="Controls\ProgressBar.cs" />
+    <Compile Include="Controls\ToggleButton.cs" />
+    <Compile Include="Controls\TreeView.cs" />
+    <Compile Include="Controls\TreeViewNode.cs" />
+    <Compile Include="Enums\eDeleteMode.cs" />
+    <Compile Include="Enums\eDeleteSide.cs" />
+    <Compile Include="Enums\eKeyboardType.cs" />
+    <Compile Include="Enums\eMonthPickerMode.cs" />
+    <Compile Include="Exceptions\MaxLengthException.cs" />
     <Compile Include="Form\AlertDialog.cs" />
     <Compile Include="Form\ArrayPromptDialog.cs" />
     <Compile Include="Form\AutoCleanForm.cs" />
@@ -71,20 +96,23 @@
     <Compile Include="Base\FormBase.cs" />
     <Compile Include="Form\CallbackData.cs" />
     <Compile Include="Form\PromptDialog.cs" />
+    <Compile Include="Markdown\Generator.cs" />
     <Compile Include="SessionBase.cs" />
     <Compile Include="Sessions\DeviceSession.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Tools\Arrays.cs" />
+    <Compile Include="Tools\Time.cs" />
     <Compile Include="Tools\Images.cs" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Newtonsoft.Json">
-      <Version>11.0.2</Version>
+      <Version>12.0.2</Version>
     </PackageReference>
     <PackageReference Include="System.Net.Requests">
       <Version>4.3.0</Version>
     </PackageReference>
     <PackageReference Include="Telegram.Bot">
-      <Version>14.10.0</Version>
+      <Version>15.0.0</Version>
     </PackageReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
diff --git a/TelegramBotFramework.sln b/TelegramBotFramework.sln
index 320955b..dbdd651 100644
--- a/TelegramBotFramework.sln
+++ b/TelegramBotFramework.sln
@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.28307.168
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29025.244
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TelegramBaseTest", "TelegramBaseTest\TelegramBaseTest.csproj", "{5817184C-0D59-4924-AC6C-6B943967811C}"
 EndProject
@@ -12,6 +12,29 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		README.md = README.md
 	EndProjectSection
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "images", "images", "{AF4C8238-A0F0-41AC-8C0A-33E143AEBFCD}"
+	ProjectSection(SolutionItems) = preProject
+		images\alertdialog.PNG = images\alertdialog.PNG
+		images\calendarpicker.gif = images\calendarpicker.gif
+		images\calendarpicker.PNG = images\calendarpicker.PNG
+		images\example1.PNG = images\example1.PNG
+		images\example2.PNG = images\example2.PNG
+		images\example3.PNG = images\example3.PNG
+		images\example4.1.PNG = images\example4.1.PNG
+		images\example4.2.PNG = images\example4.2.PNG
+		images\example4.3.PNG = images\example4.3.PNG
+		images\example4.4.PNG = images\example4.4.PNG
+		images\monthpicker1.PNG = images\monthpicker1.PNG
+		images\monthpicker2.PNG = images\monthpicker2.PNG
+		images\progressbar.PNG = images\progressbar.PNG
+		images\promptdialog.PNG = images\promptdialog.PNG
+		images\togglebutton.gif = images\togglebutton.gif
+		images\treeview1.PNG = images\treeview1.PNG
+		images\treeview2.PNG = images\treeview2.PNG
+		images\treeview3.PNG = images\treeview3.PNG
+		images\treeview4.PNG = images\treeview4.PNG
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -30,6 +53,9 @@ Global
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{AF4C8238-A0F0-41AC-8C0A-33E143AEBFCD} = {E9AE1280-C1F3-4960-9D3D-D4F25142E838}
+	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {4245F162-E263-45E0-A16A-ED5F411A4AFC}
 	EndGlobalSection