ASP.NET Validation - How to disable client script

Validation example: how to disable client script
DisableClientScript.aspx
<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
    protected void Button1_Click(object sender, System.EventArgs e) {
        Label1.Text = "Your City: " +
            TextBox1.Text.ToString();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Validation example: how to disable client script</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Label ID="Label1" runat="server" Font-Size="Large" ForeColor="DarkBlue"></asp:Label>
        <br />
        <asp:Label ID="Label2" runat="server" Text="City Name" AssociatedControlID="TextBox1"></asp:Label>
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:RequiredFieldValidator
             ID="RequiredFieldValidator1"
             runat="server"
             ControlToValidate="TextBox1"
             ErrorMessage="Input City Name!"
             EnableClientScript="false"
             >
        </asp:RequiredFieldValidator>
        <br />
        <asp:Button ID="Button1" runat="server" Text="Submit City" OnClick="Button1_Click" />
    </div>
    </form>
</body>
</html>








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