public void Updatemodel(DataGridView drv)
        {
            Datalayer d1 = new Datalayer();

            foreach (DataGridViewRow row in drv.Rows)
            {
                if (!row.IsNewRow)
                {
                    d1.Updatemodel(row.Cells["Company_Name"].Value + "", row.Cells["Mod_Name"].Value + "", row.Cells["Mod_Quantity"].Value + "", row.Cells["Mod_Sell_Cost"].Value + "", row.Cells["Ram"].Value + "", row.Cells["CPU"].Value + "", row.Cells["Internal_Storage"].Value + "", row.Cells["Screen_Size"].Value + "", row.Cells["Primary_Camera"].Value + "", row.Cells["Secondry_Camera"].Value + "");
                    MessageBox.Show("Update Operation is Completed");
                }
            }
        }