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<%@ Page Language="vb" %>
<html>
<head>
<title>IsValid property example</title>
<script runat="server">
Sub Page_Load()
If IsPostBack Then
Page.Validate()
If Page.IsValid Then
Message.Text = "Page is valid."
Else
Message.Text = "Page is not valid."
End If
End If
End Sub
</script>
</head>
<body>
<form runat="server">
Enter your name:
<asp:textbox id="name" runat="server"/>
<asp:requiredfieldvalidator
id="rfvName"
controltovalidate="name"
enableclientscript="false"
errormessage="Required!"
runat="server"/>
<br/>
<asp:button id="submit" Text="Submit" runat="server"/>
<br/>
<asp:label id="Message" runat="server"/>
</form>
</body>
</html>
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