Silverlight RelativeSource of TemplatedParent Binding within a DataTemplate, Is it possible?
- by Matt.M
I'm trying to make a bar graph Usercontrol. I'm creating each bar using a DataTemplate.
The problem is in order to compute the height of each bar, I first need to know the height of its container (the TemplatedParent). Unfortunately what I have:
Height="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Height, Converter={StaticResource HeightConverter}, Mode=OneWay}"
Does not work. Each time a value of NaN is returned to my Converter. Does RelativeSource={RelativeSource TemplatedParent} not work in this context? What else can I do to allow my DataTemplate to "talk" to the element it is being applied to?
Incase it helps here is the barebones DataTemplate:
<DataTemplate x:Key="BarGraphTemplate">
<Grid Width="30">
<Rectangle HorizontalAlignment="Center" Stroke="Black" Width="20" Height="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Height, Converter={StaticResource HeightConverter}, Mode=OneWay}" VerticalAlignment="Bottom" />
</Grid>
</DataTemplate>
