How to pass values from Child to Parent window

Here is the code that will pass value from child widow to parent window. The form objects can be standard HTML or ASP.Net Server objects.It works in both.

WCF Architecture

Useful link for LINQ in c# and VB

For C# http://msdn.microsoft.com/en-gb/vcsharp/aa336746.aspx
For VB http://msdn.microsoft.com/en-us/vbasic/bb688084.aspx