MAJOR CHANGE for ButtonGrids, Dynamic data sources, etc

- introducing a dynamic data source class (IDataSource)
- introducing a ButtonRow class for better managability
- replacing that List<ButtonBase> with ButtonRow object
- introducing ButtonFormDataSource with special methods for ButtonGrid controls
- updating ButtonGrid and refactoring of the Load/Action methods
- updating CheckButtonList and refactoring of the Load/Action methods
- updating TaggedButtonGrid and refactoring of the Load/Action methods
- adding example to the Test project

TelegramBotBaseTest/Tests/Controls/ButtonGridTagForm.cs

@@ -32,6 +32,7 @@ namespace TelegramBotBaseTest.Tests.Controls
             m_Buttons.EnablePaging = true;
 
             m_Buttons.HeadLayoutButtonRow = new List<ButtonBase>() { new ButtonBase("Back", "back") };
+            
 
             var countries = CultureInfo.GetCultures(CultureTypes.SpecificCultures);
 
@@ -45,7 +46,9 @@ namespace TelegramBotBaseTest.Tests.Controls
             m_Buttons.Tags = countries.Select(a => a.Parent.EnglishName).Distinct().OrderBy(a => a).ToList();
             m_Buttons.SelectedTags = countries.Select(a => a.Parent.EnglishName).Distinct().OrderBy(a => a).ToList();
 
-            m_Buttons.ButtonsForm = bf;
+            m_Buttons.EnableCheckAllTools = true;
+
+            m_Buttons.DataSource = new TelegramBotBase.Datasources.ButtonFormDataSource(bf);
 
             m_Buttons.ButtonClicked += Bg_ButtonClicked;
 
@@ -57,11 +60,13 @@ namespace TelegramBotBaseTest.Tests.Controls
             if (e.Button == null)
                 return;
 
-            if (e.Button.Value == "back")
+            switch (e.Button.Value)
             {
-                var start = new Menu();
-                await this.NavigateTo(start);
-                return;
+
+                case "back":
+                    var start = new Menu();
+                    await this.NavigateTo(start);
+                    return;
 
             }
 

TelegramBotBaseTest/Tests/Datasources/CustomDataSource.cs

@@ -0,0 +1,163 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Text;
+using TelegramBotBase.Controls.Hybrid;
+using TelegramBotBase.Datasources;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBaseTest.Tests.Datasources
+{
+    public class CustomDataSource : ButtonFormDataSource
+    {
+
+        public List<String> Countries = new List<string>() { "Country 1", "Country 2", "Country 3" };
+
+        public CustomDataSource()
+        {
+            loadData();
+        }
+
+        /// <summary>
+        /// This method has the example purpose of creating and loading some example data.
+        /// When using a database you do not need this kind of method.
+        /// </summary>
+        private void loadData()
+        {
+            //Exists data source? Read it
+            if (File.Exists(AppContext.BaseDirectory + "countries.json"))
+            {
+                try
+                {
+                    var List = Newtonsoft.Json.JsonConvert.DeserializeObject<List<String>>(File.ReadAllText("countries.json"));
+
+
+                    Countries = List;
+                }
+                catch
+                {
+
+                }
+
+
+                return;
+            }
+
+            //If not, create it
+            try
+            {
+                var countries = CultureInfo.GetCultures(CultureTypes.SpecificCultures).Select(a => a.DisplayName).ToList();
+
+                Countries = countries;
+
+                var tmp = Newtonsoft.Json.JsonConvert.SerializeObject(countries);
+
+                File.WriteAllText( AppContext.BaseDirectory + "countries.json", tmp);
+            }
+            catch
+            {
+
+            }
+
+        }
+
+        public override ButtonRow ItemAt(int index)
+        {
+            var item = Countries.ElementAt(index);
+            if (item == null)
+                return new ButtonRow();
+
+            return Render(item);
+        }
+
+        public override List<ButtonRow> ItemRange(int start, int count)
+        {
+            var items = Countries.Skip(start).Take(count);
+
+            List<ButtonRow> lst = new List<ButtonRow>();
+            foreach (var c in items)
+            {
+                lst.Add(Render(c));
+            }
+
+            return lst;
+        }
+
+        public override List<ButtonRow> AllItems()
+        {
+            List<ButtonRow> lst = new List<ButtonRow>();
+            foreach (var c in Countries)
+            {
+                lst.Add(Render(c));
+            }
+            return lst;
+        }
+
+        public override ButtonForm PickItems(int start, int count, string filter = null)
+        {
+            List<ButtonRow> rows = ItemRange(start, count);
+
+            ButtonForm lst = new ButtonForm();
+            foreach (var c in rows)
+            {
+                lst.AddButtonRow(c);
+            }
+            return lst;
+        }
+
+        public override ButtonForm PickAllItems(string filter = null)
+        {
+            List<ButtonRow> rows = AllItems();
+
+            ButtonForm bf = new ButtonForm();
+
+            bf.AddButtonRows(rows);
+
+            return bf;
+        }
+
+        public override int CalculateMax(string filter = null)
+        {
+            if (filter == null)
+                return Countries.Count;
+
+            return Countries.Where(a => a.IndexOf(filter, StringComparison.InvariantCultureIgnoreCase) != -1).Count();
+        }
+
+        public override ButtonRow Render(object data)
+        {
+            var s = data as String;
+            if (s == null)
+                return new ButtonRow(new ButtonBase("Empty", "zero"));
+
+            return new ButtonRow(new ButtonBase(s, s));
+        }
+
+        public override int Count
+        {
+            get
+            {
+                return Countries.Count;
+            }
+        }
+
+        public override int ColumnCount
+        {
+            get
+            {
+                return 1;
+            }
+        }
+
+        public override int RowCount
+        {
+            get
+            {
+                return this.Count;
+            }
+        }
+
+    }
+}

TelegramBotBaseTest/Tests/Datasources/List.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Base;
+using TelegramBotBase.Controls.Hybrid;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBaseTest.Tests.Datasources
+{
+    public class List : FormBase
+    {
+        ButtonGrid __buttons = null;
+
+        public List()
+        {
+            this.Init += List_Init;
+        }
+
+        private async Task List_Init(object sender, TelegramBotBase.Args.InitEventArgs e)
+        {
+
+            __buttons = new ButtonGrid();
+
+            __buttons.EnablePaging = true;
+            __buttons.EnableSearch = false;
+            __buttons.ButtonClicked += __buttons_ButtonClicked;
+            __buttons.KeyboardType = TelegramBotBase.Enums.eKeyboardType.ReplyKeyboard;
+            __buttons.DeleteReplyMessage = true;
+
+            __buttons.HeadLayoutButtonRow = new ButtonRow(new ButtonBase("Back", "back"));
+
+            var cds = new CustomDataSource();
+            __buttons.DataSource = cds;
+
+            AddControl(__buttons);
+        }
+
+        private async Task __buttons_ButtonClicked(object sender, TelegramBotBase.Args.ButtonClickedEventArgs e)
+        {
+            switch(e.Button.Value)
+            {
+                case "back":
+
+                    var mn = new Menu();
+                    await NavigateTo(mn);
+
+                    break;
+            }
+        }
+
+        public override async Task Load(MessageResult message)
+        {
+            
+        }
+
+
+        public override async Task Render(MessageResult message)
+        {
+            
+        }
+
+
+    }
+}

TelegramBotBaseTest/Tests/Menu.cs

@@ -190,6 +190,14 @@ namespace TelegramBotBaseTest.Tests
                     await NavigateTo(nc);
 
 
+                    break;
+
+                case "dynamicbuttongrid":
+
+                    var dg = new Datasources.List();
+
+                    await NavigateTo(dg);
+
                     break;
 
                 default:
@@ -237,6 +245,8 @@ namespace TelegramBotBaseTest.Tests
 
             btn.AddButtonRow(new ButtonBase("#17 NavigationController (Push/Pop)", new CallbackData("a", "navigationcontroller").Serialize()));
 
+            btn.AddButtonRow(new ButtonBase("#18 Dynamic ButtonGrid (DataSources)", new CallbackData("a", "dynamicbuttongrid").Serialize()));
+
             await this.Device.Send("Choose your test:", btn);
         }