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 dat

Answer 1

Try this

Xaml

Then we can set the binding of the TextProperty for textBox2 to the same as textBox1 with this code behind

BindingExpression bindingExpression = textBox1.GetBindingExpression(TextBox.TextProperty);
Binding parentBinding = bindingExpression.ParentBinding;
textBox2.SetBinding(TextBox.TextProperty, parentBinding);