Merge pull request #1 from vijayarasan/master

How to use the editing related events in GridCheckBoxColumn of WinUI DataGrid (SfDataGrid)?

Author: AmalRajUmapathySelvam

README.md

@@ -1,2 +1,52 @@
 # How to use the editing related events in GridCheckBoxColumn of WinUI DataGrid (SfDataGrid)?
-This example illustrates how to use the editing related events in GridCheckBoxColumn of WinUI DataGrid (SfDataGrid).
+
+The **BeginEdit** and **EndEdit** events are not triggered when you check or uncheck the CheckBox control in [GridCheckBoxColumn](https://help.syncfusion.com/cr/winui/Syncfusion.UI.Xaml.DataGrid.GridCheckBoxColumn.html) in [WinUI DataGrid](https://www.syncfusion.com/winui-controls/datagrid) (SfDataGrid). However, you can get the notification while changing the CheckBox state by using the [CurrentCellValueChanged](https://help.syncfusion.com/cr/winui/Syncfusion.UI.Xaml.DataGrid.SfDataGrid.html#Syncfusion_UI_Xaml_DataGrid_SfDataGrid_CurrentCellValueChanged) event.
+
+```C#
+
+//Event subscription
+this.dataGrid.CurrentCellValueChanged += OnCurrentCellValueChanged;
+
+//Event customization
+public void OnCurrentCellValueChanged(object sender, CurrentCellValueChangedEventArgs args)
+{
+    int columnindex = dataGrid.ResolveToGridVisibleColumnIndex(args.RowColumnIndex.ColumnIndex);
+
+    if (columnindex < 0)
+        return;
+
+    var column = dataGrid.Columns[columnindex];
+
+    if (column is GridCheckBoxColumn)
+    {
+        var rowIndex = this.dataGrid.ResolveToRecordIndex(args.RowColumnIndex.RowIndex);
+
+        if (rowIndex < 0)
+            return;
+
+        RecordEntry record = null;
+
+        if (this.dataGrid.View != null)
+        {
+            if (this.dataGrid.View.TopLevelGroup != null)
+            {
+                //Get the record when grouping applied in SfDataGrid
+                record = (this.dataGrid.View.TopLevelGroup.DisplayElements[rowIndex] as RecordEntry);
+            }
+            else
+            {
+                record = this.dataGrid.View.Records[rowIndex] as RecordEntry;
+            }
+
+            if (record != null)
+            {
+                //Checkbox property changed value is stored here.
+                var value = (record.Data as OrderInfo).Review;
+            }
+        }
+    }
+}
+
+```
+
+Take a moment to peruse the [WinUI DataGrid - Column Types](https://help.syncfusion.com/winui/datagrid/column-types) documentation, to learn more about column types with code examples.

SfDataGridDemo/App.xaml

@@ -0,0 +1,18 @@
+<!-- Copyright (c) Microsoft Corporation and Contributors. -->
+<!-- Licensed under the MIT License. -->
+
+<Application
+    x:Class="DataGridDemo.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:DataGridDemo">
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls" />
+                <!-- Other merged dictionaries here -->
+            </ResourceDictionary.MergedDictionaries>
+            <!-- Other app resources here -->
+        </ResourceDictionary>
+    </Application.Resources>
+</Application>

SfDataGridDemo/App.xaml.cs

@@ -0,0 +1,34 @@
+using Microsoft.UI.Xaml;
+
+// To learn more about WinUI, the WinUI project structure,
+// and more about our project templates, see: http://aka.ms/winui-project-info.
+
+namespace DataGridDemo
+{
+    /// <summary>
+    /// Provides application-specific behavior to supplement the default Application class.
+    /// </summary>
+    public partial class App : Application
+    {
+        /// <summary>
+        /// Initializes the singleton application object.  This is the first line of authored code
+        /// executed, and as such is the logical equivalent of main() or WinMain().
+        /// </summary>
+        public App()
+        {
+            this.InitializeComponent();
+        }
+
+        /// <summary>
+        /// Invoked when the application is launched.
+        /// </summary>
+        /// <param name="args">Details about the launch request and process.</param>
+        protected override void OnLaunched(Microsoft.UI.Xaml.LaunchActivatedEventArgs args)
+        {
+            m_window = new MainWindow();
+            m_window.Activate();
+        }
+
+        private Window m_window;
+    }
+}