There is a question related to this but it is possible to make it in a reverse process.
To bind a property to a control so that when the control
value is changed, the class bound property changes with it.
Example:
I have a class Person
with Firstname
property that is bound to a textbox txtFn
control when the txtFn
text value changes the class Person.Firstname
property changes with it.
UPDATE
The referred question still answer two-way binding. It is in their comments below.