TextBox.Render Method
Assembly: System.Web (in system.web.dll)
The Render method renders the begin tag and end tag of the TextBox control to the HtmlTextWriter object for output on the client. If the TextMode property is set to MultiLine, the content of the TextBox control is rendered as an HTML <textarea> element.
The Render method is used primarily by control developers extending the functionality of the TextBox control.
The following code example demonstrates how to override the Render method in a custom server control so that the TextBox control is always displayed with an image.
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.JSL.Controls" Assembly="Samples.AspNet.JSL" %> <%@ Page Language="VJ#" AutoEventWireup="True" %> <HTML> <HEAD> <title>Custom TextBox - Render - VJ# Example</title> </HEAD> <body> <form id="Form1" method="post" runat="server"> <h3>Custom TextBox - Render - VJ# Example</h3> <aspSample:CustomTextBoxRender id="TextBox1" runat="server" text="Hello World!"> </aspSample:CustomTextBoxRender> </form> </body> </HTML>
package Samples.AspNet.JSL.Controls;
public class CustomTextBoxRender
extends System.Web.UI.WebControls.TextBox
{
protected void Render(System.Web.UI.HtmlTextWriter writer)
{
// Create and render a new Image Web control.
System.Web.UI.WebControls.Image image = new System.Web.UI.
WebControls.Image();
image.set_ID("Image1");
image.set_ImageUrl("image.jpg");
image.set_AlternateText("Image for TextBox1.");
image.RenderControl(writer);
// Create a BR tag.
writer.RenderBeginTag(System.Web.UI.HtmlTextWriterTag.Br);
// Call the base class's Render method.
super.Render(writer);
} //Render
} //CustomTextBoxRender
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.