private void locBtn2_Click(object sender, EventArgs e)
{
roomsConn roomsConn = new roomsConn();
roomModel roomsModel = new roomModel();
String selectedSessionType = sessionType.Text.ToString();
roomsModel.roomName = assignRoom.Text;
roomsModel.subjectCode = asubjectCode.Text;
roomsModel.facultyNme = faculty.Text;
roomsConn.updateSessionTable(roomsModel, notavltime.Text.ToString(), selectedSessionType);
roomManagingSource.DataSource = roomsConn.load_con_sesssion_details();
}