protected void Grid_RowCommand(object sender, GridCommandEventArgs e)
        {
            int artId = GetSelectedDataKeyID(Grid);


            if (e.CommandName == "Delete")
            {
                Maticsoft.BLL.tArticle BLL = new Maticsoft.BLL.tArticle();

                Maticsoft.Model.tArticle model = BLL.GetModel(artId);
                if (!string.IsNullOrEmpty(model.FengMian) && (model.FengMian != "../../upload/blank.png"))
                {
                    string directoryPath = Server.MapPath(model.FengMian);
                    File.Delete(directoryPath);
                    //删除掉原来的图片
                }
                BLL.Delete(artId);
                GetView();
            }
            if (e.CommandName == "Edit")
            {
                PageContext.RegisterStartupScript(Window1.GetShowReference("ArticlesEdit.aspx?Id=" + artId));
            }
        }