public void BindDDL() { #region 绑定图书分类和出版社 DataTable dt = CategoriesManager.GetDataTableByCategories(); GridViewHelp.BindDDL(dt, ddlcategory, "Name", "Id"); DataTable dt2 = PublisherManager.GetDataTableByCategories(); GridViewHelp.BindDDL(dt2, ddlpublisher, "Name", "Id"); #endregion }