ASP.NET Tutorial/Custom Controls/Extends Control

Материал из .Net Framework эксперт
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Link Controls

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="LinkControlTest" %>
<%@ Register TagPrefix="apress" Namespace="CustomServerControlsLibrary"
  Assembly="CustomServerControls" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <apress:LinkWebControl id="LinkWebControl1" runat="server"
  BackColor="#FFFF80" Font-Names="Verdana" Font-Size="Large"
  ForeColor="#C00000" Text="Click to visit Apress"
  HyperLink="http://www.apress.ru"></apress:LinkWebControl>
    </div>
    </form>
</body>
</html>
File: Default.aspx.cs

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
namespace CustomServerControlsLibrary
{
  public class LinkControl : Control
  {
    protected override void Render(HtmlTextWriter output)
    {
      output.AddAttribute(HtmlTextWriterAttribute.Href,
        "http://www.nfex.ru");
      output.AddStyleAttribute(HtmlTextWriterStyle.FontSize, "20");
      output.AddStyleAttribute(HtmlTextWriterStyle.Color, "Blue");
      output.RenderBeginTag(HtmlTextWriterTag.A);
      output.Write("Click to visit Apress");
      output.RenderEndTag();
    }
  }
}

public partial class LinkControlTest : System.Web.UI.Page
{
  protected void Page_Load(object sender, EventArgs e)
  {
  }
}