Calling Codebehind .cs file method in Javascript method in asp.net
<p>I am trying to do the page level validation in javascript for and element and if the validation is passed i want to call the codebehind method .cs file method of .aspx.cs file method. 
Can anyone please provide any details / code which will make this requirement work in an easy way. 
I am trying to do this in C# .net. 
Thanks, </p>
