Silverlight On Mobile : Invoke WCF Service and Data Operations in Windows Phone 7

I hope you like my last post on InputScope.Many of you dropped me email and asking about Data representation and Data binding,operations on Windows Phone 7.Till now I kept prime focus on basic structure and functionalities,capabilities of device.Now we are in good position to talk about data,So let's talk about it today.In past, I have wrote decent amount of articles on Data Binding and CRUD operations using Grid,DataForm in Web version of Silverlight. Thanks for your massive positive response for that.Now let's see what we can do on Windows Phone 7 with the Silverlight Framework available on it.
I am going to split this article in 2 parts :
Adding WCF Service to Windows Phone 7 Doing Insert Operation using WCF service with SQL as backend For this example,I am using a simple table schema in SQL as :
Constraints ...