bind an ItemsTemplate datatemplate and ItemsPanelTemplate properties - binding

Question

I have an ItemsControl with items templated as a UserControl.
My ItemsControl.Items Panel is templated as a Canvas.
For now, I set these my usercontrol's width and height properties manually and it looks like this:
<ItemsControl x:Name="curveList"
ItemsSource="{Binding SplineVMList}"
Background="{x:Null}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<Canvas x:Name="canvas" Margin="46,60,83,46"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<local:SplineControl Width="300" Height="300" Canvas.Bottom="0" Canvas.Left="0" IsSelected="{Binding IsSelected, Mode=TwoWay}"/>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemContainerStyle>
<Style TargetType="ContentPresenter">
<Setter Property="Canvas.Bottom" Value="0"/>
<Setter Property="Canvas.Left" Value="0"/>
</Style>
</ItemsControl.ItemContainerStyle>
</ItemsControl>
What I want is to bind width and height properties of my usercontrol to those of my Canvas.
Is it just possible?

Answer 1

Have you tried a relative source binding?
e.g.
Width="{Binding ActualWidth,
RelativeSource={RelativeSource AncestorType=Canvas}}"