创建用户自定义控件的方法之一

一：header.asc
<table width="100%" border="0" cellpadding="0" cellspacing="0" background="../../images/s2pindex_11.gif"ID="Table6">
<tr>
  <td width="7" height="29" valign="top"><img src="../../images/s2pindex_10.gif" width="7" height="29"></td>
  <td width="510" valign="middle" style="PADDING-LEFT:10px; FILTER:glow(color=#ffffff,strength=3); COLOR:#023490; PADDING-TOP:3px; LETTER-SPACING:8px">
   <ASP:PLACEHOLDER id="phJxtTitle" RUNAT="server"></ASP:PLACEHOLDER></td>
  <td width="65">
  </td>
  <td width="9" valign="top"><img src="../../images/s2pindex_12.gif" width="9" height="29"></td>
</tr>
</table>
<%@ Control Language="c#" AutoEventWireup="false" Codebehind="Top1.ascx.cs" Inherits="s2p.Application.Teacher.Controls.Top1" TargetSchema="http://schemas.microsoft.com/intellisense/ie5"%>

二：header.asc.cs

namespace s2p.Application.Teacher.Controls
{
using System;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Text;
using s2pDatabasePublic;

/// <summary>

/// <summary>
/// Top1 的摘要说明。
/// </summary>
public class Top1 : System.Web.UI.UserControl
{
protected System.Web.UI.WebControls.PlaceHolder phJxtTitle;

//准备属性
private string _JxtTitle="";//当前页面标题

  /// <summary>
  /// 当前页面标题
  /// </summary>
  public string JxtTitle
  {
   get
   {
    return _JxtTitle;
   }
   set
   {
    _JxtTitle=value;
   }
  }

  private void Page_Load(object sender, System.EventArgs e)
  {
   // 在此处放置用户代码以初始化页面
   phJxtTitle.Controls.Add(new LiteralControl(JxtTitle));
  }

  #region Web 窗体设计器生成的代码
  override protected void OnInit(EventArgs e)
  {
   //
   // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
   //
   InitializeComponent();
   base.OnInit(e);
  }

  /// <summary>
  ///  设计器支持所需的方法 - 不要使用代码编辑器
  ///  修改此方法的内容。
  /// </summary>
  private void InitializeComponent()
  {
   this.Load += new System.EventHandler(this.Page_Load);

}
#endregion
}
}
<%@ Control Language="c#" AutoEventWireup="false" Codebehind="Top1.ascx.cs" Inherits="s2p.Application.Teacher.Controls.Top1" TargetSchema="http://schemas.microsoft.com/intellisense/ie5"%><%@ Control Language="c#" AutoEventWireup="false" Codebehind="Top1.ascx.cs" Inherits="s2p.Application.Teacher.Controls.Top1" TargetSchema="http://schemas.microsoft.com/intellisense/ie5"%><%@ Control Language="c#" AutoEventWireup="false" Codebehind="Top1.ascx.cs" Inherits="s2p.Application.Teacher.Controls.Top1" TargetSchema="http://schemas.microsoft.com/intellisense/ie5"%><%@ Control Language="c#" AutoEventWireup="false" Codebehind="Top1.ascx.cs" Inherits="s2p.Application.Teacher.Controls.Top1" TargetSchema="http://schemas.microsoft.com/intellisense/ie5"%>