Question

Is there a way to bind to the instance of another control? Something like this:

<Button x:Name="Foo" Content="Foo" />
<local:CustomControl OtherControl="{Binding Foo}" />

I’ve tried setting DataContext to “this” in the constructor of MainPage but it doesn’t seem to work.

CustomControl is defined something like this:

class CustomControl
{
    public FrameworkElement OtherControl { get; set; }
}

Answer 1

Not sure what you trying to do but in Silverlight 3 you can use element binding to bind to a property on a control.

<Button x:Name="Foo" Content="Foo" />
<local:CustomControl x:Name="control" Property="{Binding Path=Content, ElementName=Foo}" />

In code you could always analyze the binding and get the element from that?

control.GetBindingExpression(Property).ParentBinding.Source