protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e) { if (e.CommandName == "Delete") { For_Admin Mall = new For_Admin(); Mall.Delete_Op(); GridView1.DataBind(); //string connection = System.Configuration.ConfigurationManager.ConnectionStrings["Connect_DB"].ConnectionString; //using (var con = new SqlConnection(connection)) //{ // con.Open(); // string query = " update [dbo].[Malls] set IsDeleted='True' where ID = '" + e.CommandArgument + "'"; // SqlCommand comm = new SqlCommand(query, con); // comm.ExecuteNonQuery(); // GridView1.DataBind(); //} } }