Toggle Button inside a canvas - xaml

Question

I have a canvas object in my xaml that has a togglebutton and two textblocks, like this.
<ListBox.ItemTemplate>
<DataTemplate >
<Canvas HorizontalAlignment="Right" VerticalAlignment="Top" Width="485"
Margin="-15,0,-15,80" Visibility="Visible"
MouseLeftButtonUp="MandantenStackPanel_MouseLeftButtonDown">
<ToggleButton Name="FavToggle" Checked="FavChecked" Unchecked="FavUnchecked"
Style="{StaticResource CustomToggleButtonStyle}"
Foreground ="White" BorderBrush="Red" HorizontalAlignment="Left"
Canvas.Left="0" Canvas.Top="0">
<ImageBrush ImageSource="/Icons/favs.png" Stretch="UniformToFill" >
</ImageBrush>
</ToggleButton>
<TextBlock Text="{Binding MandantenNummer}" FontSize="24"
TextWrapping="Wrap" Canvas.Left="90" Canvas.Top="20"/>
<TextBlock Text="{Binding MandantenBezeichnung}" FontSize="24"
TextWrapping="Wrap" Canvas.Left="90" Canvas.Top="50"/>
</Canvas>
</DataTemplate>
</ListBox.ItemTemplate>
In my .cs i am binding a collection item to that listbox that also has a boolean called isFavorite that i'd like to toggle with my togglebutton. How can i access the data context from the canvas from inside my toggle event handlers? I tried it like i did it like i do it when you click on the textbox:
private void FavChecked(object sender, EventArgs e)
{
ClassX x = (sender as Canvas).DataContext as Class x;
x.isFavorite = true;
}
but that of course doesn't work cause my sender is the togglebutton and not the canvas. Can i access the canvas from here?

Answer 1

The sender is ToggleButton and not Canvas because that is the control on which you attached that event handler.
Also, DataContext is set recursively so ToggleButton inherits the same data context the parent has.