LinkButton.AddAttributesToRender(HtmlTextWriter) Methode

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Fügt dem Ausgabedatenstrom die Attribute des LinkButton Steuerelements zum Rendern auf dem Client hinzu.

protected:
 override void AddAttributesToRender(System::Web::UI::HtmlTextWriter ^ writer);
protected override void AddAttributesToRender(System.Web.UI.HtmlTextWriter writer);
override this.AddAttributesToRender : System.Web.UI.HtmlTextWriter -> unit
Protected Overrides Sub AddAttributesToRender (writer As HtmlTextWriter)

Parameter

writer
HtmlTextWriter

A HtmlTextWriter that contains the output stream to render on the client.

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, wie die AddAttributesToRender Methode in einem benutzerdefinierten Serversteuerelement überschreibt wird, sodass der LinkButton Listenelementtext immer fett angezeigt wird.

<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<!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 LinkButton - AddAttributesToRender - C# Example</title>
    <script runat="server">
      void LinkButton1_Command(Object sender, CommandEventArgs e) 
      {
        // Redirect to the Microsoft home page.
        Response.Redirect("http://www.microsoft.com/");
      }
    </script>
  </head>
  <body>
    <form id="Form1" method="post" runat="server">
      <h3>Custom LinkButton - AddAttributesToRender - C# Example</h3>

      <aspSample:CustomLinkButtonAddAttributesToRender 
        id="LinkButton1" 
        runat="server" 
        OnCommand="LinkButton1_Command" 
        ToolTip="Microsoft Home">Microsoft Corp.
      </aspSample:CustomLinkButtonAddAttributesToRender>
      
    </form>
  </body>
</html>

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %>
<%@ Page Language="VB" 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 LinkButton - AddAttributesToRender - VB.NET Example</title>
        <script runat="server">
            Sub LinkButton1_Click(sender As Object, e As CommandEventArgs)
                ' Redirect to the Microsoft home page.
                Response.Redirect("http://www.microsoft.com/")
            End Sub
        </script>
    </head>
    <body>
        <form id="Form1" method="post" runat="server">
            <h3>Custom LinkButton - AddAttributesToRender - VB.NET Example</h3>
            
            <aspSample:CustomLinkButtonAddAttributesToRender id="LinkButton1" 
             runat="server" OnCommand="LinkButton1_Click" 
             ToolTip="Microsoft Home">Microsoft Corp.</aspSample:CustomLinkButtonAddAttributesToRender>

        </form>
    </body>
</html>

using System.Web;
using System.Security.Permissions;

namespace Samples.AspNet.CS.Controls
{
    [AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
    public sealed class CustomLinkButtonAddAttributesToRender : System.Web.UI.WebControls.LinkButton
    {
        protected override void AddAttributesToRender(System.Web.UI.HtmlTextWriter writer)
        {
            // Show the LinkButton text as Bold 
            writer.AddStyleAttribute(System.Web.UI.HtmlTextWriterStyle.FontWeight, "bold");

            // Call the Base's AddAttributesToRender method.
            base.AddAttributesToRender(writer);
        }
    }
}

<AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
Public NotInheritable Class CustomLinkButtonAddAttributesToRender
    Inherits System.Web.UI.WebControls.LinkButton

    Protected Overrides Sub AddAttributesToRender(ByVal writer As System.Web.UI.HtmlTextWriter)

        ' Show the LinkButton text as Bold 
        writer.AddStyleAttribute(System.Web.UI.HtmlTextWriterStyle.FontWeight, "bold")

        ' Call the Base's AddAttributesToRender method.
        MyBase.AddAttributesToRender(writer)
    End Sub
End Class

Gilt für:

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