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
}
