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View Sample
<html>
<head>
<title>Validation Control Syntax Example</title>
<link rel="stylesheet" href="/shared/netdemos.css">

<script language="C#" runat="server">
void greetUser ( Object Src, EventArgs E ) {
   if ( Page.IsValid ) {
      msg.InnerHtml = "Hello, " + userName.Text + 
         "<br>Welcome to Web Forms Validation <img src=/shared/wink.gif />";
   }
}
</script>
</head>

<body>
<div class="header"><h2>ASP.NET Primer: <span class="hilite">Validation Control Syntax Example</span></h2></div>
<hr size=1 width=92%>

<div align="center">
<form runat="server">

   <p>Enter your name: <asp:textbox id="userName" runat="server" />

   <asp:button text="Enter" onClick="greetUser" runat="server" />

   <p><asp:requiredfieldvalidator 
      controltovalidate="userName"
      display="dynamic"
      errormessage="Please enter a name. Sender's name cannot be blank."
      forecolor="navy" font-bold
      runat="server" />

   <p id="msg" runat="server" />

</form>
</div>
<hr size=1 width=92%>
<!-- #include virtual="~/shared/viewsrc.inc" -->

</body>
</html>