******* XAML Code *******
---------------------------------------------------------------------------------------------
<DataGrid.RowStyle>
<Style TargetType="{x:Type DataGridRow}">
<EventSetter Event="MouseDoubleClick" Handler="ResultDataGrid_MouseDoubleClick"/>
</Style>
</DataGrid.RowStyle>
---------------------------------------------------------------------------------------------
******* VB Code *******
Private Sub ResultDataGrid_MouseDoubleClick(sender As Object, e As MouseButtonEventArgs)
If sender IsNot Nothing Then
'Do something in here
End If
End Sub