Panel.AddAttributesToRender Method
.NET Framework 4
Adds information about the background image, alignment, wrap, and direction to the list of attributes to render.
Assembly: System.Web (in System.Web.dll)
Parameters
- writer
- Type: System.Web.UI.HtmlTextWriter
An HtmlTextWriter that represents the output stream to render HTML content on the client.
| Exception | Condition |
|---|---|
| InvalidOperationException |
The DefaultButton property of the Panel control must be the ID of a control of type IButtonControl. |
The following code example demonstrates how to override the AddAttributesToRender method in a custom server control so that the Panel text always displays as bold.
<%@ 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 Panel - AddAttributesToRender - C# Example</title> </head> <body> <form id="Form1" method="post" runat="server"> <h3>Custom Panel - AddAttributesToRender - C# Example</h3> <aspSample:CustomPanelAddAttributesToRender id="Panel1" runat="server" BorderWidth="1px" BorderStyle="Solid"> <asp:Label id="Label1" runat="server">Label1</asp:Label> </aspSample:CustomPanelAddAttributesToRender> </form> </body> </html>
using System.Web; using System.Security.Permissions; namespace Samples.AspNet.CS.Controls { [AspNetHostingPermission(SecurityAction.Demand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class CustomPanelAddAttributesToRender : System.Web.UI.WebControls.Panel { protected override void AddAttributesToRender(System.Web.UI.HtmlTextWriter writer) { // Show the Panel text as Bold writer.AddStyleAttribute(System.Web.UI.HtmlTextWriterStyle.FontWeight, "bold"); // Call the Base's AddAttributesToRender method. base.AddAttributesToRender(writer); } } }
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.
