protected void On_RowDelete(object sender, GridViewDeleteEventArgs e) { int ID = Convert.ToInt32(Grid_Category.DataKeys[e.RowIndex].Value.ToString()); ToolsAdmin.delete_Product_WhenDeleteCategory(ID); if (ToolsAdmin.delete_Category(ID)) { DIV_AddEditCategory.Visible = false; Load_Grid_Category(); } else { WebMsgBox.Show("Error Delete"); } }