[WPF]–How to select checkbox of items in ListBox by clicking text

In WPF, you can create a checked list box by creating a normal ListBox and using an ItemTemplate as follows:

<ListBox Margin="10" HorizontalAlignment="Stretch" Name="lbSheets" 

              VerticalAlignment="Stretch" Width="Auto" Grid.Row="1" MinWidth="321"

              MinHeight="40" HorizontalContentAlignment="Left" 

              ItemTemplate="{StaticResource ListBoxItemTemplate}" VerticalContentAlignment="Top" Background="#FFDCEBEE" SelectionMode="Single" SelectionChanged="lbSheets_SelectionChanged">

     </ListBox>

<DataTemplate x:Key="ListBoxItemTemplate" >

     <WrapPanel>

         <CheckBox Focusable="False" IsChecked="{Binding Selected}" VerticalAlignment="Center" />

         <ContentPresenter  Content="{Binding FullName, Mode=OneTime}"  Margin="2,0" />

     </WrapPanel>

 </DataTemplate>

In my example, I am then binding a domain model object that implements INotifyPropertyChanged, and I have a boolean property for Selected, when the checkbox is checked, it will toggle this value, and vice versa. The text that is displayed is from a property called ‘FullName’, as specified in the DataTemplate.


However, I wanted to be able to check the checkboxes by clicking on the text next to them, not by pinpointing the check box. I tried a number of ways of doing this before finally arriving at a solution.
I ended up suing the ‘MouseUp’ event on the ContentPresenter from my DataTemplate

<DataTemplate x:Key="ListBoxItemTemplate" >

      <WrapPanel>

          <CheckBox Focusable="False" IsChecked="{Binding Selected}" VerticalAlignment="Center" />

          <ContentPresenter  Content="{Binding FullName, Mode=OneTime}"  Margin="2,0" MouseUp="ContentPresenter_MouseUp" />

      </WrapPanel>

  </DataTemplate>

And in this method I did the following:

private void ContentPresenter_MouseUp(object sender, MouseButtonEventArgs e)

{

    string text = ((TextBlock) e.OriginalSource).Text;

    foreach (var item in this.lbSheets.Items)

    {

        PrintableSheet sheetItem = (PrintableSheet) item;

        if (sheetItem.FullName.Equals(text))

        {

            sheetItem.Selected = !sheetItem.Selected;

        }

    }

}

I used the OriginalSource proprety from the event arguments to get the TextBlock, I used its text, and matched it up with my domain object (PrintableSheet) using the property that was bound. So now when you click the text on the item, it will toggle the checkbox.