protected void ImgBtnFlasherror_Click(object sender, ImageClickEventArgs e) { int Sgrade = Int32.Parse(Request.QueryString["wGrade"].ToString()); int Sclass = Int32.Parse(Request.QueryString["wClass"].ToString()); string myCid = DDLCid.SelectedValue; if (DDLmid.SelectedValue != "") { int Wmid = Int32.Parse(DDLmid.SelectedValue); LearnSite.BLL.Works wbll = new LearnSite.BLL.Works(); wbll.ClearWflasherror(Sgrade, Sclass, Wmid, Int32.Parse(myCid)); } System.Threading.Thread.Sleep(200); ShowDoneWorks(); }