//====================================================================================================
public AddBookingViewModel(IMessageBoxService mboxService, IConfigService configService,
IParentVm parent, Booking model)
{
_parent = parent;
_mboxService = mboxService;
_configService = configService;
//Get Configuration
AvailableDurations = _configService.GetAvailableDurations();
//Set Commands
SubmitCommand = new ActionCommand(OnSubmit, _=>_isFormValid);
CancelCommand = new ActionCommand(OnCancel);
//Set up the screen for Add or Display.
if (model.Id == -1)
{
Model = model;
Caption = "Add New Booking";
IsAddMode = true;
}
else
{
Model = model;
Caption = "Existing Booking";
IsAddMode = false;
}
}