ASP.NET - Using Button control with CausesValidation property

Using Button control with CausesValidation property in asp.net
ButtonCausesValidation.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 = "You submited this name: " +
            TextBox1.Text.ToString();
    }

    protected void Button2_Click(object sender, System.EventArgs e) {
        Label1.Text = "You clicked the cancel button.";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Using Button control with CausesValidation property in asp.net</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:Fuchsia">Using CausesValidation property</h2>
        <asp:Label ID="Label1" runat="server" Font-Size="Large" ForeColor="Teal"></asp:Label>
        <br /><br />
        <asp:Label ID="Label2" runat="server" Text="Input name" AssociatedControlID="TextBox1"></asp:Label>
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox1" ErrorMessage="Name required!"></asp:RequiredFieldValidator>
        <br />
        <asp:Button ID="Button1" runat="server" Text="Submit name" OnClick="Button1_Click" Font-Bold="true" CausesValidation="true" />
        <asp:Button ID="Button2" runat="server" Text="Cancel" OnClick="Button2_Click" Font-Bold="true" ForeColor="Red" CausesValidation="false" />
    </div>
    </form>
</body>
</html>








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