In WPF how to get binding of a specific item from the code?

Question

The example of this would be:

A textBox is bound to some data. There is a second text box which is not bind to anything. So I want to bind text box 2 to the same data 1st textBox is bound.

In other words I wan't to know if the DependencyObject stores some reference to it's data-bindings? If not, what is the way to find out all data-bindings of a specific object?

Answer 1

You can do this in code by calling the SetBinding method.

Answer 2

Try this

Xaml

<TextBox Name="c_textBox1" Text="{Binding Text1}"/>
<TextBox Name="c_textBox2" Text="No Binding"/>

Then we can set the binding of the TextProperty for c_textBox2 to the same as c_textBox1 with this code behind

BindingExpression bindingExpression = c_textBox1.GetBindingExpression(TextBox.TextProperty);
Binding parentBinding = bindingExpression.ParentBinding;
c_textBox2.SetBinding(TextBox.TextProperty, parentBinding);