Adding paging/search example

README.md

@@ -804,6 +804,8 @@ await this.NavigateTo(cd);
 ### Button Grid
 <img src="images/buttongrid.gif?raw=true" />
 
+#### Paging & Searching
+<img src="images/buttongrid_pagingfilter.gif?raw=true" />
 
 ## Groups
 

TelegramBotBase/Controls/ButtonGrid.cs

@@ -188,6 +188,7 @@ namespace TelegramBotBase.Controls
 
                     if (this.SearchQuery != null && this.SearchQuery != "")
                     {
+                        this.CurrentPageIndex = 0;
                         this.Updated();
                     }
 
@@ -480,7 +481,14 @@ namespace TelegramBotBase.Controls
                 if (this.ButtonsForm.Count == 0)
                     return 1;
 
-                return (int)Math.Ceiling((decimal)(this.ButtonsForm.Rows / (decimal)(MaximumRow - 3)));
+                var bf = this.ButtonsForm;
+
+                if (this.EnableSearch && this.SearchQuery != null && this.SearchQuery != "")
+                {
+                    bf = bf.FilterDuplicate(this.SearchQuery);
+                }
+
+                return (int)Math.Ceiling((decimal)(bf.Rows / (decimal)(MaximumRow - 3)));
             }
         }
 

TelegramBotBaseTest/Tests/Controls/ButtonGridForm.cs

@@ -44,7 +44,7 @@ namespace TelegramBotBaseTest.Tests.Controls
 
         }
 
-        private async void Bg_ButtonClicked(object sender, ButtonClickedEventArgs e)
+        private async Task Bg_ButtonClicked(object sender, ButtonClickedEventArgs e)
         {
             if (e.Button == null)
                 return;

TelegramBotBaseTest/Tests/Controls/ButtonGridPagingForm.cs

@@ -0,0 +1,73 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TelegramBotBase.Args;
+using TelegramBotBase.Controls;
+using TelegramBotBase.Form;
+
+namespace TelegramBotBaseTest.Tests.Controls
+{
+    public class ButtonGridPagingForm : AutoCleanForm
+    {
+
+        ButtonGrid m_Buttons = null;
+
+        public ButtonGridPagingForm()
+        {
+            this.DeleteMode = TelegramBotBase.Enums.eDeleteMode.OnLeavingForm;
+
+            this.Init += ButtonGridForm_Init;
+        }
+
+        private async Task ButtonGridForm_Init(object sender, InitEventArgs e)
+        {
+            m_Buttons = new ButtonGrid();
+
+            m_Buttons.KeyboardType = TelegramBotBase.Enums.eKeyboardType.ReplyKeyboard;
+
+            m_Buttons.EnablePaging = true;
+            m_Buttons.EnableSearch = true;
+
+            m_Buttons.HeadLayoutButtonRow = new List<ButtonBase>() { new ButtonBase("Back", "back") };
+
+            var countries = CultureInfo.GetCultures(CultureTypes.SpecificCultures);
+
+            ButtonForm bf = new ButtonForm();
+
+            foreach (var c in countries)
+            {
+                bf.AddButtonRow(new ButtonBase(c.EnglishName, c.EnglishName));
+            }
+
+            m_Buttons.ButtonsForm = bf;
+
+            m_Buttons.ButtonClicked += Bg_ButtonClicked;
+
+            this.AddControl(m_Buttons);
+
+
+        }
+
+        private async Task Bg_ButtonClicked(object sender, ButtonClickedEventArgs e)
+        {
+            if (e.Button == null)
+                return;
+
+            if (e.Button.Value == "back")
+            {
+                var start = new Menu();
+                await this.NavigateTo(start);
+            }
+            else
+            {
+
+                await this.Device.Send($"Button clicked with Text: {e.Button.Text} and Value {e.Button.Value}");
+            }
+
+
+        }
+    }
+}

TelegramBotBaseTest/Tests/Menu.cs

@@ -146,6 +146,16 @@ namespace TelegramBotBaseTest.Tests
 
                     await this.NavigateTo(bg);
 
+                    break;
+
+                case "buttongridfilter":
+
+                    message.Handled = true;
+
+                    var bg2 = new Controls.ButtonGridPagingForm();
+
+                    await this.NavigateTo(bg2);
+
                     break;
             }
 
@@ -175,6 +185,8 @@ namespace TelegramBotBaseTest.Tests
 
             btn.AddButtonRow(new ButtonBase("#12 ButtonGrid", new CallbackData("a", "buttongrid").Serialize()));
 
+            btn.AddButtonRow(new ButtonBase("#13 ButtonGrid Paging & Filter", new CallbackData("a", "buttongridfilter").Serialize()));
+
             await this.Device.Send("Choose your test:", btn);
         }