Data binding to a UserControl in WPF

Question

I have a UserControl that I want to participate in data binding. I\'ve set up the dependency properties in the user control, but can\'t get it work.

The uc displays the

Answer 1

You set the DataContext in the Control to itself, thus overwriting the DataContext when using this Control in other controls. Taking your binding as example in your situation:

Once loaded and all the Datacontext is set, it will look for the path MyString in your BlueTextBox thing control due to you setting the DataContext to it. I guess this is not how you intended this to work ;).

Solution:

Change the text binding either one of the 2 bindings:

{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type src:BlueTextBox}}, Path=BlueText}

or

Name your control Root (or something like that)

And remove the

DataContext = this;

from the constructor of your UserControl and it should work like a charm..