/// <summary>
 /// 初始化基础控件对象
 /// </summary>
 protected abstract void InitCreateBasicsComponentAndObject(out Repeater rptList, out TextBox txtPageNum, out HtmlGenericControl PageContent, out ITableBasicFunction <T> bll);
 /// <summary>
 /// 初始化基础控件对象
 /// </summary>
 protected override void InitCreateBasicsComponentAndObject(out Repeater rptList, out TextBox txtPageNum, out HtmlGenericControl PageContent, out ITableBasicFunction <Model.visitor_message> bll)
 {
     rptList                      = this.rptList;
     txtPageNum                   = this.txtPageNum;
     PageContent                  = this.PageContent;
     bll                          = (ITableBasicFunction <Model.visitor_message>) new BLL.visitor_message();
     this.btnDelete.Click        += btnDelete_Click;
     this.lbtnEmpty.Click        += lbtnEmpty_Click;
     this.lbtnSearch.Click       += btnSearch_Click;
     this.txtPageNum.TextChanged += txtPageNum_TextChanged;
 }