Datagrid.IsSelected Binding and scrolling

user_753998 0
Viewed 7730

I uses MVVM and I bind datagrid to collection with some code:

<DataGrid ItemsSource="{Binding Entites}" AutoGenerateColumns="False" IsSynchronizedWithCurrentItem="True" 
                  SelectedItem="{Binding SelectedEntity}">

And I aslo use binding to IsSelectedProperty using style (RowStyle or ItemContainerStyle)

<DataGrid.RowStyle>
        <Style>
              <Setter Property="DataGridRow.IsSelected" Value="{Binding IsSelectedProperty, Mode=TwoWay}" />                        
        </Style>
</DataGrid.RowStyle>

It works well. But if I scroll datagrid down and up, it stops working.

selected mvvm datagrid wpf c#
3 Answers

Try setting the virtualizationmode to standard on the DataGrid: VirtualizingStackPanel.VirtualizationMode="Standard".

I believe virtualization is turned on by default but the mode is recycling. So the IsSelected property for some reason doesn't get reevaluated when a new row is created on scroll.

user_993670
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