ES-975464 - Resolve the ReadMe file length issue in this sample repository

Author: SreemonPremkumarM

README.md

@@ -1,7 +1,71 @@
-# How to show different context menu for each column in WPF DataGrid (SfDataGrid)?
+# How to show different context menu for each column in WPF DataGrid (SfDataGrid)
+ 
+[WPF DataGrid](https://www.syncfusion.com/wpf-controls/datagrid) (SfDataGrid) allows you to set different [ContextMenu](https://learn.microsoft.com/en-us/dotnet/api/system.windows.controls.contextmenu?view=netframework-4.7.2) for each column using the [SfDataGrid.GridContextMenuOpening](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Grid.SfDataGrid.html?_ga=2.138054064.1225195101.1667794112-766490130.1650530957&_gl=1*jbl2r4*_ga*NzY2NDkwMTMwLjE2NTA1MzA5NTc.*_ga_WC4JKKPHH0*MTY2Nzk4NTI1Mi4yOTMuMS4xNjY3OTkwMjkzLjAuMC4w#Syncfusion_UI_Xaml_Grid_SfDataGrid_GridContextMenuOpening) event.
 
-This example illustrates how to show different context menu for each column in [WPF DataGrid](https://www.syncfusion.com/wpf-ui-controls/datagrid) (SfDataGrid).
+Refer to the following code example to define different `ContextMenu` for each column based on the column index in [SfDataGrid.GridContextMenuOpening](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Grid.SfDataGrid.html?_ga=2.238060544.1225195101.1667794112-766490130.1650530957&_gl=1*bvr10z*_ga*NzY2NDkwMTMwLjE2NTA1MzA5NTc.*_ga_WC4JKKPHH0*MTY2Nzk4NTI1Mi4yOTMuMS4xNjY3OTkwMzc2LjAuMC4w#Syncfusion_UI_Xaml_Grid_SfDataGrid_GridContextMenuOpening) event. Here, the first three columns have different `ContextMenu` and the rest of columns have different `ContextMenu`,
 
-[WPF DataGrid](https://www.syncfusion.com/wpf-ui-controls/datagrid) (SfDataGrid) allows you to set different ContextMenu for each column using the [SfDataGrid.GridContextMenuOpening](http://help.syncfusion.com/cr/cref_files/wpf/Syncfusion.SfGrid.WPF~Syncfusion.UI.Xaml.Grid.SfDataGrid~GridContextMenuOpening_EV.html) event.
+```c#
+this.AssociatedObject.GridContextMenuOpening += AssociatedObject_GridContextMenuOpening;
+ 
+private void AssociatedObject_GridContextMenuOpening(object sender, GridContextMenuEventArgs e)
+{
+            e.ContextMenu.Items.Clear();
+            var columnIndex = this.AssociatedObject.ResolveToGridVisibleColumnIndex(e.RowColumnIndex.ColumnIndex);
+            if (columnIndex < 0 && columnIndex >= this.AssociatedObject.Columns.Count)
+                return;
+            var column = this.AssociatedObject.Columns[columnIndex];
+            if (column == null)
+                return;
+ 
+            List<object> commandParameter = new List<object>();
+            commandParameter.Add(this.AssociatedObject);
+            commandParameter.Add(column);
+            CommandBinding binding = new CommandBinding();
+            this.AssociatedObject.CommandBindings.Add(binding);
+ 
+            if (columnIndex < 3)
+            {
+                e.ContextMenu.Items.Add(new MenuItem()
+                {
+                    Header = "AddSort",
+                    Command = ContextMenuCommands.AddSort,
+                    CommandParameter = commandParameter
+                });
+                e.ContextMenu.Items.Add(new MenuItem()
+                {
+                    Header = "AddGroup",
+                    Command = ContextMenuCommands.AddGroup,
+                    CommandParameter = commandParameter
+                });
+                e.ContextMenu.Items.Add(new MenuItem()
+                {
+                    Header = "ClearSort",
+                    Command = ContextMenuCommands.ClearSort,
+                    CommandParameter = commandParameter
+                });
+                e.ContextMenu.Items.Add(new MenuItem()
+                {
+                    Header = "ClearGroup",
+                    Command = ContextMenuCommands.ClearGroup,
+                    CommandParameter = commandParameter
+                });
+            }
+            else 
+            {
+                e.ContextMenu.Items.Add(new MenuItem()
+                {
+                    Header = "Copy",
+                    Command = ContextMenuCommands.Copy,
+                    CommandParameter = commandParameter
+                });
+                e.ContextMenu.Items.Add(new MenuItem()
+                {
+                    Header = "Paste",
+                    Command = ContextMenuCommands.Paste,
+                    CommandParameter = commandParameter
+                });
+       }
+}
+```
 
-KB article - [How to show different context menu for each column in WPF DataGrid (SfDataGrid)?](https://www.syncfusion.com/kb/9840/how-to-show-different-context-menu-for-each-column-in-wpf-datagrid-sfdatagrid)
+![context menu for each column in WPF DataGrid](https://www.syncfusion.com/uploads/user/kb/wpf/wpf-44389/wpf-44389_img1.png)