RadioButtonList.Render Method (HtmlTextWriter)
.NET Framework (current version)
Displays the RadioButtonList control on the client.
Assembly: System.Web (in System.Web.dll)
Parameters
- writer
-
Type:
System.Web.UI.HtmlTextWriter
A System.Web.UI.HtmlTextWriter that contains the output stream for rendering on the client.
This method is used primarily by control developers in custom controls that derive from the RadioButtonList class.
The Render method implementation for a RadioButtonList control initializes a RepeatInfo object for the list, and calls the RenderRepeater method, which in turn uses the RenderItem method to render individual radio button list items.
The following code example demonstrates how to override the Render method in a custom server control so that the RadioButtonList control is always displayed with descriptive text.
<%@ Page Language="VB" AutoEventWireup="True" %> <%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %> <!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 RadioButtonList - Render - VB.NET Example</title> </head> <body> <form id="Form1" method="post" runat="server"> <h3>Custom RadioButtonList - Render - VB.NET Example</h3> <aspSample:CustomRadioButtonListRender id="Radiobuttonlist1" runat="server" RepeatColumns="2" RepeatDirection="Horizontal"> <asp:ListItem Value="Item1">Item1</asp:ListItem> <asp:ListItem Value="Item2">Item2</asp:ListItem> <asp:ListItem Value="Item3">Item3</asp:ListItem> <asp:ListItem Value="Item4">Item4</asp:ListItem> </aspSample:CustomRadioButtonListRender> </form> </body> </html>
Imports System.Web Imports System.Security.Permissions Namespace Samples.AspNet.VB.Controls <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _ Public NotInheritable Class CustomRadioButtonListRender Inherits System.Web.UI.WebControls.RadioButtonList Protected Overrides Sub Render(ByVal writer As System.Web.UI.HtmlTextWriter) ' Call the base RenderContents method. MyBase.Render(writer) ' Append some text to the Image. writer.Write("Experience Windows Server 2003 and Visual Studio .NET 2003.") End Sub 'Render End Class End Namespace
.NET Framework
Available since 1.1
Available since 1.1
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