Bind the current instance of a control to an attached property

Question

I'm looking to see if you can bind the current instance of a usercontrol or window to an attached property defined in its xaml, eg:

<Window MyAttachedProp.Value="{Binding Self}"/>

Answer 1

You want the MyAttachedProp.Value to have the Window object reference?

You can use any of these methods:

1. {Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}

2. give your Window an x:Name="XXXXX"...and then use {Binding ElementName=XXXXX} to find it.

3. {Binding RelativeSource={RelativeSource Self}}

4. {Binding RelativeSource={x:Static RelativeSource.Self}}

With example 4, it avoids the creation of a new RelativeSource object (with the Mode set to Self)...instead it points to the Static one already created in the RelativeSource class....(this is a VERY minor and premature optimization).

Most people use example 3 as it's less to type and clearer to read.

• http://www.c-sharpcorner.com/uploadfile/yougerthen/relativesources-in-wpf/

Answer 2

{Binding RelativeSource={RelativeSource Self}}