HtmlAnchor.OnPreRender Method
.NET Framework 4
Raises the PreRender event and registers client script for generating a postback.
Assembly: System.Web (in System.Web.dll)
The following code example demonstrates how to override the OnPreRender method so that it always displays a Title tag in a custom HtmlAnchor server control.
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %> <%@ Page Language="C#" AutoEventWireup="True" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <title>Custom HtmlAnchor - OnPreRender - C# Example</title> </head> <body> <form id="Form1" method="post" runat="server"> Top of Page <<aspSample:CustomHtmlAnchorOnPreRender id="HtmlAnchor1" runat="server" name="HtmlAnchor1">HtmlAnchor1</aspSample:CustomHtmlAnchorOnPreRender>> <h3>Custom HtmlAnchor - OnPreRender - C# Example</h3> <p> </p> <p>Jump to <a href="#HtmlAnchor2">HtmlAnchor2</a> below.</p> <p> </p><p> </p><p> </p><p> </p> <p> </p><p> </p><p> </p><p> </p> <p> </p><p> </p><p> </p><p> </p> <p> </p><p> </p><p> </p><p> </p> <p> </p><p> </p><p> </p><p> </p> <p> </p><p> </p><p> </p><p> </p> <p> </p><p> </p><p> </p><p> </p> <p> </p><p> </p><p> </p><p> </p> <p> </p><p> </p><p> </p><p> </p> <p> </p><p> </p><p> </p><p> </p> <p>Jump to <a href="#HtmlAnchor1">HtmlAnchor1</a> above.</p> <p> </p>Bottom of Page <<aspSample:CustomHtmlAnchorOnPreRender id="HtmlAnchor2" runat="server" name="HtmlAnchor2">HtmlAnchor2</aspSample:CustomHtmlAnchorOnPreRender>> </form> </body> </html>
using System.Web; using System.Security.Permissions; namespace Samples.AspNet.CS.Controls { [AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)] public sealed class CustomHtmlAnchorOnPreRender : System.Web.UI.HtmlControls.HtmlAnchor { protected override void OnPreRender(System.EventArgs e) { // Call the base OnPreRender method. base.OnPreRender(e); // Write out the HtmlAnchor control's Title tag. this.Title = "Text from OnPreRender."; } } }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
