title: How to make PopUp window in asp.net web application?
body: <p>I am making a <strong>Canteen Management System</strong> using <code>ASP.NET Forms</code>.<br>
  So I want a <strong>Pop-Up</strong> window or box which will take input from dropdown list and textbox to implement <code>Filter</code> option.<br>
  So how to make it and how to access collected data from code behind?<br>
  Any tutorials links or suggestion are all welcome. Thanks for helping :)</p>