private void btnAddUpdateElegibility_Click(object sender, System.Windows.RoutedEventArgs e)
		{
            string elegibilityNumber = txtElegibilityNumber.Text.Trim();

            if (AreValidFields(elegibilityNumber) == false)
            {
                return;
            }

            if (_isUpdateElegibility)
            {
                _selectedElegibility.AuthorizationDate = DateTime.Now;
                _selectedElegibility.ElegibilityNumber = elegibilityNumber;

                UpdateElegibility(_selectedElegibility);
            }
            else
            {
                Model.DentegraAuthorization elegibilityToAdd = new Model.DentegraAuthorization()
                {
                    AuthorizationDate = DateTime.Now,
                    ElegibilityNumber = elegibilityNumber,
                    PatientId = _selectedPatient.PatientId
                };

                AddElegibility(elegibilityToAdd);
            }
        }
        public AddEditDentegraAuthorizationsModal(Model.Patient selectedPatient, Model.DentegraAuthorization selectedElegibility)
		{
			this.InitializeComponent();

            _selectedPatient = selectedPatient;
            _selectedElegibility = selectedElegibility;
            _isUpdateElegibility = selectedElegibility != null;

            lblExpNumber.ToolTip = lblExpNumber.Content = selectedPatient.AssignedId;
            lblPatientName.ToolTip = lblPatientName.Content = selectedPatient.FirstName + " " + selectedPatient.LastName;

            if (_isUpdateElegibility)
            {
                PrepareWindowForUpdates();
            }
		}