LinkButton.OnPreRender Method
.NET Framework 2.0
Raises the PreRender event.
Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)
Assembly: System.Web (in system.web.dll)
The OnPreRender method notifies the LinkButton control to perform any necessary prerendering steps prior to saving view state and rendering content to the client.
The following code example demonstrates how to override the OnPreRender method so that a border is never displayed in a custom LinkButton control.
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.JSL.Controls" Assembly="Samples.AspNet.JSL" %>
<%@ Page Language="VJ#" AutoEventWireup="True" %>
<HTML>
<HEAD>
<title>Custom LinkButton - OnPreRender - VJ# Example</title>
<script runat="server">
void LinkButton1_Command(Object sender, CommandEventArgs e)
{
// Redirect to the Microsoft home page.
get_Response().Redirect("http://www.microsoft.com/");
} //LinkButton1_Command
</script>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<h3>Custom LinkButton - OnPreRender - VJ# Example</h3>
<aspSample:CustomLinkButtonOnPreRender
id="LinkButton1"
runat="server"
OnCommand="LinkButton1_Command"
ToolTip="Microsoft Home">Microsoft Corp.
</aspSample:CustomLinkButtonOnPreRender>
</form>
</body>
</HTML>
...package Samples.AspNet.JSL.Controls;
public class CustomLinkButtonOnPreRender
extends System.Web.UI.WebControls.LinkButton
{
protected void OnPreRender(System.EventArgs e)
{
// Run the OnPreRender method on the base class.
super.OnPreRender(e);
// Always display the LinkButton without a border.
this.set_BorderWidth(System.Web.UI.WebControls.Unit.Point(0));
} //OnPreRender
} //CustomLinkButtonOnPreRender
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
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