Merge pull request #4 from SyncfusionExamples/ES-976509

ES-976509 - Resolved the ReadMe file issue in the sample repository

Author: vijayarasan

DetailsViewDataGridExpandedStateAfterGrouping.gif

@@ -1,37 +1,41 @@
-# How to maintain the DetailsView expanded state when Sorting and Grouping the DataGrid SfDataGrid
+# How to Maintain the DetailsView Expanded State when Sorting and Grouping the WPF DataGrid?
 
-This sample show cases how to maintain the DetailsView expanded state when Sorting and Grouping the [WPF DataGrid](https://www.syncfusion.com/wpf-ui-controls/datagrid) (SfDataGrid)?
+This sample show cases how to maintain the DetailsView expanded state when Sorting and Grouping the [WPF DataGrid](https://www.syncfusion.com/wpf-controls/datagrid) (SfDataGrid).
 
-When you are processing the data operation (Grouping, Sorting) the expanded DetailsViewDataGrid is collapsed in [WPF DataGrid](https://www.syncfusion.com/wpf-ui-controls/datagrid)  (SfDataGrid). 
+When you are processing the data operation ([Grouping](https://help.syncfusion.com/wpf/datagrid/grouping), [Sorting](https://help.syncfusion.com/wpf/datagrid/sorting)) the expanded DetailsViewDataGrid is collapsed in DataGrid. 
 
 ### Grouping
 
-You can expand all the `DetailsViewDataGrid` when processing the grouping in `SfDataGrid.GroupColumnDescriptions.CollectionChanged` event. 
+You can expand all the `DetailsViewDataGrid` when processing the grouping in `SfDataGrid.GroupColumnDescriptions.CollectionChanged` event.
 
-```C#
+``` Csharp
 this.dataGrid.GroupColumnDescriptions.CollectionChanged += GroupColumnDescriptions_CollectionChanged;
 
 private void GroupColumnDescriptions_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
 {
     dataGrid.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.ApplicationIdle,
-         new Action(() =>
-         {
-             this.dataGrid.ExpandAllDetailsView();
-         }));
+        new Action(() =>
+        {
+            this.dataGrid.ExpandAllDetailsView();
+        }));
 }
 ```
+
 ### Sorting
 
 You can expand all the `DetailsViewDataGrid` when processing sorting in `SfDataGrid.SortColumnsChanged` event. 
+
 ``` C#
 this.dataGrid.SortColumnsChanged += DataGrid_SortColumnsChanged;
 
 private void DataGrid_SortColumnsChanged(object sender, GridSortColumnsChangedEventArgs e)
 {
     dataGrid.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.ApplicationIdle,
-         new Action(() =>
-         {
-             this.dataGrid.ExpandAllDetailsView();
-         }));
+        new Action(() =>
+        {
+            this.dataGrid.ExpandAllDetailsView();
+        }));
 }
 ```
+
+![DetailsViewDataGrid are in expanded state after grouping](DetailsViewDataGridExpandedStateAfterGrouping.gif)