title: Why we use .class file in ASP.NET?
body: <p>Why we use .class files ASP.net?</p>
  
  <p>Cant we use multiple classes as inline in the default.aspx.cs (codebehind) ?</p>
  
  <p>haha..yea i dont have any idea..so question is we do not use in ASP.net ? then where we will use?</p>