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-# How to change the itemssource of detailsview at runtime in winui datagrid?
-This example describes how to change the itemssource of detailsview at runtime in winui datagrid.
+# How to change the itemssource of detailsview at runtime in WinUI DataGrid
+
+This example describes how to change the itemssource of detailsview at runtime in [WinUI DataGrid](https://www.syncfusion.com/winui-controls/datagrid) (SfDataGrid).
+
+`ItemsSource` for `DetailsViewDataGrid` is populated from the DataContext of parent row based on [ViewDefinition.RelationalColumn](https://help.syncfusion.com/cr/winui/Syncfusion.UI.Xaml.DataGrid.ViewDefinition.html#Syncfusion_UI_Xaml_DataGrid_ViewDefinition_RelationalColumn). DetailsViewDataGrid doesn’t update its ItemsSource at runtime based on the property change, which is mapped the DetailsViewDataGrid ItemsSource. You can update the ItemsSource on the property change by setting [SfDataGrid.LiveDataUpdateMode](https://help.syncfusion.com/cr/winui/Syncfusion.UI.Xaml.DataGrid.SfDataGrid.html#Syncfusion_UI_Xaml_DataGrid_SfDataGrid_LiveDataUpdateMode) as `AllowChildViewUpdate`.
+
+#### XAML
+
+``` xml
+<dataGrid:SfDataGrid Name="dataGrid"  
+                       AutoGenerateColumns="True"
+                       AutoGenerateRelations="True"
+                       GridLinesVisibility="Both"
+                       ItemsSource="{Binding Source}"                              
+                       LiveDataUpdateMode="AllowChildViewUpdate,AllowDataShaping">
+```
+#### C#
+
+``` csharp
+this.dataGrid.LiveDataUpdateMode = LiveDataUpdateMode.AllowChildViewUpdate | LiveDataUpdateMode.AllowDataShaping;
+```
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