[Solved] Selecting the text inside the TextBox

[Abhi]

 When selecting the TEXT inside the TextBox it should select in the following way 

 1. For mouse single click for cursor position

 2. For mouse double click should select a word

 3. For mouse triple click should select whole text
Normal behavior which we generally see in different sites..............Eg:-Telerik ClientLogIn UserNameBox

How to achieve this is in silverlight TextBox? pls give any solution