How to: Get the Binding Object from a Bound Target Property
This example shows how to obtain the binding object from a data-bound target property.
You can do the following to get the Binding object:
// textBox3 is an instance of a TextBox // the TextProperty is the data-bound dependency property Binding myBinding = BindingOperations.GetBinding(textBox3, TextBox.TextProperty);
You must specify the dependency property for the binding you want because it is possible that more than one property of the target object is using data binding.
For the complete example see Binding Validation Sample.
If your binding is a MultiBinding, use BindingOperations.GetMultiBinding. If it is a PriorityBinding, use BindingOperations.GetPriorityBinding. If you are uncertain whether the target property is bound using a Binding, a MultiBinding, or a PriorityBinding, you can use BindingOperations.GetBindingBase.