Binding to child object - windows-phone-7

Question

I have the following code(wp7-silverlight). I try to bind a slider to those 2 controls' Angle property, but for some reason the inner control doesn't seems to receive the data, only the parent control. When I put them side by side(not nested), those work properly. Any idea why only the outer control can get the data from the slider?
<rotate:RotatableUserControl Width="400"
Height="400"
x:Name="RotatableUserControl"
Angle="{Binding ElementName=SliderObject, Path=Value}">
<Canvas Background="Red">
<rotate:RotatableUserControl Width="50"
Height="50"
x:Name="childeRotate3"
Angle="{Binding ElementName=SliderObject, Path=Value}">
<Grid Background="Yellow" />
</rotate:RotatableUserControl>
</Canvas>
</rotate:RotatableUserControl>

Answer 1

I am not sure why you can't bind it nested, but you could try to set the canvas Datacontext to the SliderObject and the bind the Value to the nested rotate:RotatableUserControl, that may work!
<rotate:RotatableUserControl Width="400"
Height="400"
x:Name="RotatableUserControl"
Angle="{Binding ElementName=SliderObject, Path=Value}">
<Canvas Background="Red" Datacontext={Binding ElementName=SliderObject, Path=Value}">
<rotate:RotatableUserControl Width="50"
Height="50"
x:Name="childeRotate3"
Angle="{Binding}">
<Grid Background="Yellow" />
</rotate:RotatableUserControl>
</Canvas>
</rotate:RotatableUserControl>