继承System.Web.UI.Page的页面基类

using System;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace CommonClass
{
 /// <summary>
 /// 页面的基类。 ///
 /// </summary>
 public class PageBase:System.Web.UI.Page
 {
  public PageBase()
  {
   //
   // TODO: 在此处添加构造函数逻辑
   //   
  }
  /// <summary>
  /// 模块名称
  /// </summary>
  public String ModuleName
  {
   set{ViewState["ModuleName"]=value;}
   get{return ViewState["ModuleName"].ToString();}
  }
  private string _Message;
  /// <summary>
  /// 向用户显示信息提示
  /// </summary>
  public String Message
  {
   get{return _Message;}
   set{_Message = value;}
  }
  /// <summary>
  /// 检查是否有特定的权限
  /// </summary>
  /// <param name="sec">安全选项</param>
  /// <returns></returns>
//  public bool CheckPermissionSuccess(Framework.SecurityOption sec)
//  {
//   //TODO:实现Framework.Security类，如浏览、修改、管理权限
//   return Framework.Security.CheckValid(this.ModuleName,sec);
//  }
  /// <summary>
  /// 页最顶端的PlaceHolder
  /// </summary>
  public System.Web.UI.WebControls.PlaceHolder plhTopHolder;
  /// <summary>
  /// 页最底端的PlaceHolder
  /// </summary>
  public System.Web.UI.WebControls.PlaceHolder plhBottomHolder;
  
  protected override void OnInit(EventArgs e)
  {
   //初始化控件
   plhTopHolder = new PlaceHolder();
   plhBottomHolder = new PlaceHolder();
   
   //添加顶端PlaceHolder
   Control form1 = this.FindControl("Form1");
   if (form1 != null) form1.Controls.AddAt(0,plhTopHolder);

   //添加页眉的用户自定义控件
   ITemplate Header = Page.LoadTemplate("~/Controls/Header.ascx");
   this.plhTopHolder.Controls.Add(Header);

   //event
   this.Load+=new EventHandler(PageBase_Load);
   this.Error+=new EventHandler(PageBase_Error);
   this.PreRender+=new EventHandler(PageBase_PreRender);

   base.OnInit (e);
  }
  private void PageBase_Load(object sender, EventArgs e)
  {
   //添加底端PlaceHolder
   Control form1 = this.FindControl("Form1");
   if (form1 != null) form1.Controls.Add(plhBottomHolder);
   //添加页脚的用户自定义控件
   //ITemplate Footer = Page.LoadTemplate("~/Controls/Footer.ascx");
   //this.plhBottomHolder.Controls.Add(Footer);

  }
  private void PageBase_Error(object sender, EventArgs e)
  {
#if !Debug
//   Exception exc = Server.GetLastError();
//   记录未处理的错误
//   XMLLog.AddErrorLog(exc,userName);
//   Server.Transfer("~/PageError.aspx?error=" + Server.HtmlEncode(exc.Message));
#endif
  }
  private void PageBase_PreRender(object sender, EventArgs e)
  {
   //添加信息提示
   if (this._Message != null && this._Message != String.Empty)
   {
    LiteralControl litMessage = new LiteralControl("<div class=\"CssMessage\"><p>" + Message + "</p></div>");
    plhTopHolder.Controls.Add(litMessage);
   }
  }
 }
}