private void btnSave_Click(object sender, EventArgs e) { Models.RoomMod add = new Models.RoomMod(); if (txtAcreage.Text == "") { txtAcreage.Text = "0"; } if (txtCapacity.Text == "") { txtCapacity.Text = "0"; } if (txtRoomName.Text == "") { txtRoomName.Text = "P.Mới"; } if (add.addRoom(Value()) == true) { Close(); } }