<%@PageLanguage=”C#”%>
<%@RegisterAssembly=”AjaxControlToolkit”Namespace=”AjaxControlToolkit”TagPrefix=”cc1″%>
<!DOCTYPEhtmlPUBLIC“-//W3C//DTDXHTML1.0Transitional//EN”“http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<scriptrunat=“server”>
</script>
<htmlxmlns=“http://www.w3.org/1999/xhtml”>
<headrunat=“server”>
<title></title>
</head>
<body>
<formid=“form1″runat=“server”>
<div>
<cc1:ToolkitScriptManagerID=“ToolkitScriptManager1″runat=“server”>
</cc1:ToolkitScriptManager>
<asp:TextBoxID=“TextBox1″runat=“server”></asp:TextBox>
<asp:RequiredFieldValidatorID=“RequiredFieldValidator1″Display=“None”runat=“server”
ControlToValidate=“TextBox1″ErrorMessage=“RequiredFieldValidator”></asp:RequiredFieldValidator>
<cc1:ValidatorCalloutExtenderID=“RequiredFieldValidator1_ValidatorCalloutExtender”
runat=“server”Enabled=“True”TargetControlID=“RequiredFieldValidator1″WarningIconImageUrl=“me.jpg”>
</cc1:ValidatorCalloutExtender>
</div>
<asp:ButtonID=“Button1″runat=“server”Text=“Button”/>
</form>
</body>
</html>