// constructor
        public Win_DomJobType()
        {
            InitializeComponent();

            // worker
            JTWkr = new lwdom_JobType_Worker();

            // display list of models in grid
            ListModelsInGrid();

            // reset and initialize buttons
            ResetDisplayFields();
            InitialButtonConfiguration();
        }
        // load the Job Type comb box
        private void load_JobType_CombBox()
        {
            // Job Type
            lwdom_JobType_Worker JTWkr = new lwdom_JobType_Worker();
            List<string> jtStr_List = JTWkr.Get_JobType_stringList();

            // load combo box items source
            cboType.ItemsSource = jtStr_List;
        }
 // load JobType Combox
 private void Load_JobType_ComboBox()
 {
     lwdom_JobType_Worker JTWkr = new lwdom_JobType_Worker();
     List<string> jt_List = JTWkr.Get_JobType_stringList();
     cboJobType.ItemsSource = jt_List;
 }