Specifying a Default Button : Form « HTML Controls « ASP.NET Tutorial

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ASP.NET Tutorial » HTML Controls » Form 
4.5.4.Specifying a Default Button
<%@ 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 btnSearch_Click(object sender, EventArgs e)
    {
        lblResult.Text = "Search for: " + txtSearch.Text;
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Button Default Button</title>
</head>
<body>
    <form id="form1" defaultbutton="btnSearch" runat="server">
    <div>

    <asp:Label
        id="lblSearch"
        Text="Search:"
        AssociatedControlID="txtSearch"
        Runat="server" />
        
    <asp:TextBox
        id="txtSearch"
        Runat="server" />
        
    <asp:Button
        id="btnSearch"
        Text="Search"
        OnClick="btnSearch_Click"
        Runat="server" />
        
    <asp:Button
        id="btnCancel"
        Text="Cancel"
        Runat="server" />

    <hr />

    <asp:Label
        id="lblResult"
        Runat="server" />

    </div>
    </form>
</body>
</html>
4.5.Form
4.5.1.form default focus
4.5.2.Use HTML form to layout asp.net controls (VB.net)
4.5.3.Submitting Form Data
4.5.4.Specifying a Default Button
4.5.5.A survey form (C#)
4.5.6.Using validation controls to fill a form.
4.5.7.one server-side form tag and multiple client HTML form elements
4.5.8.Multiple server forms can be employed as long as only one is rendered at a time
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