DataBinding is the ability of the FrameWork to change a value of, lets say,
a textBox and with no code from you that value is stored in the property of
the object you want.
ex
TextBox tx1 = new    TextBox();
SomeClass cls = new SomeClass();
tx1.Text = "";
cls.Name = "Hi";
tx1.DataBinding.Add("Text",cls,"Name");
now :
tx1.Text change From "" to "Hi".
if you write in the text box "Hi there!!!" and leave the control then the
cls.Name will be "Hi there!!!"
Hope that gives you a clue