Metro/WinRT/Windows 8 Is it possible to clear the binding of an element from the code behind?

Question

I have a set of items that need to populate a set of TextBox's on a page. Every time the user clicks on a different item I want to remove the old binding from the last item and set the new bindings for the current item. If I don't do this a WinRT The object is immutable exception is thrown.

This code works when the first item is selected but throws an exception on the next item selection.

titleBinding.Source = selectedItem;
TitleBox.SetBinding(TextBox.ValueProperty, _titleBinding);

Answer 1

You could try calling ClearValue.

TitleBox.ClearValue(TextBox.ValueProperty);

Answer 2

The solution for me was to create completely new binding objects each time a new item loaded and then call TitleBox.SetBinding(TextBox.ValueProperty, newBindingObject);

Apparently you can't unbind a Binding object after the source has been set and it has been binded to an object.