title: Restricting user entering html tag in textbox using validation control in asp.net c#
body: <p>I have page user creation and it contains textbox control. I want to restrict user entering html tag in i.e &lt; and > sign in textbox using .net validation control. </p>
  
  <p>Can any one help me about in this?</p>
  
  <p>I also want to restrict double quote i.e " and caret sign ^ can you please tell me how to write expression for that???</p>