how to check existency of a field in mvc -c#.net

Hi all

 

Iam new to MVC Pattern.I want to check a field exist or not.

@Html.TextBoxFor(m => m.employeeid)

@Html.ValidationMessageFor(m => m.employeeid)

When i entered a employee code in textbox want to show msg as id exist if its already exist in database.

How to do this in mvc using any client side scripting ??

 



 

Thanks in Advance

Amritha