Row in GridView (of a ListView) won't select when a GridViewColumn that has been templated out is clicked

I have a ListView with GridViewColumns. One of the GridViewColumns is templated out (CellTemplate = ...). I placed a simple TextBox there (via a DataTemplate). However, if I click on the TextBox, the row won't select unless I click in the tiny margin around the TextBox or on a GridViewColumn that has not been templated. How can I fix this?

<DataTemplate x:Key="EventDescriptionWrapTextTemplate"><Grid Height="Auto" Width="Auto" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"><TextBox
		HorizontalAlignment="Stretch"
		VerticalAlignment="Stretch"
		Margin="2"
		Text="{Binding EventDescription}"
		TextWrapping="Wrap"
		IsReadOnly="True" BorderThickness="0"
		/></Grid></DataTemplate><ListView x:Name="listView" Grid.Row="1" Margin="8,0" ItemsSource="{Binding TimeLine}"><ListView.View><GridView><GridViewColumn
		  Header="Problem" 
		  Width="150"
		  CellTemplate="{Binding Source={StaticResource EventDescriptionWrapTextTemplate} }"
			/>

Michael