private void updateButton_Click(object sender, EventArgs e)
        {
            deleteRoomTextBox.Text = "";

            RoomInfo rmObj = new RoomInfo()
            {
                block_No = blockNoTextBox.Text,
                floor_No = floorNoTextBox.Text
            };

            if (roomNoTextBox.Text == "" || availableSeatTextBox.Text == "")
            {
                rmObj.rm_No          = -1;
                rmObj.available_Seat = -1;
            }
            else
            {
                rmObj.rm_No          = Convert.ToInt32(roomNoTextBox.Text);
                rmObj.available_Seat = Convert.ToInt32(availableSeatTextBox.Text);
            }

            RoomEntryCheck obj = new RoomEntryCheck();

            obj.updateButtonCheck(rmObj);


            deleteRoomTextBox.Text = "";

            RoomEntryDateAccess dataAccess = new RoomEntryDateAccess();
            List <RoomInfo>     rooms      = dataAccess.viewRoomInfo();

            roomEntryDataGridView.AutoGenerateColumns = false;
            roomEntryDataGridView.DataSource          = rooms;
            //roomNoTextBox.ReadOnly = false;
        }
        private void searchButton_Click(object sender, EventArgs e)
        {
            deleteRoomTextBox.Text = "";



            RoomInfo Obj = new RoomInfo();

            if (roomNoTextBox.Text == "")
            {
                Obj.rm_No = -1;
            }

            else
            {
                Obj.rm_No = Convert.ToInt32(roomNoTextBox.Text);
            }
            RoomEntryCheck  dataAccess = new RoomEntryCheck();
            List <RoomInfo> rooms      = dataAccess.RoomSearchCheck(Obj);

            roomEntryDataGridView.DataSource = rooms;
        }