public ContactsViewModel(IEventAggregator eventAggragator, IContactService contactService, IDialogService dialogService)
: base(eventAggragator, contactService, dialogService)
{
ActivateContactCommand = new DelegateCommand <string>(ActivateContact);
Contacts = contactService.GetContacts();
EventAggregator.GetEvent <ContactUpdatedEvent>().Subscribe((contact) =>
{
if (ActiveContact != null)
{
ActiveContact.CopyProperties(contact);
}
});
EventAggregator.GetEvent <ContactDeletedEvent>().Subscribe((contact) =>
{
if (ActiveContact != null)
{
Contacts.Remove(Contacts.First(c => c.Id == contact.Id));
}
});
var viewItemsCountChangedEvent = EventAggregator.GetEvent <ViewItemsCountChangedEvent>();
Contacts.CollectionChanged += (s, a) => viewItemsCountChangedEvent.Publish(Contacts.Count);
}
public bool CanCloseDialog()
{
InteractionResult msgCloseResult = InteractionResult.None;
if (!_isDirty && !ActiveContact.HasErrors())
{
return(true);
}
if (!_isDirty && _isNewContact && !_closeRequested)
{
return(true);
}
if (_closeRequested)
{
msgCloseResult = _saveChanges ? InteractionResult.Yes : InteractionResult.No;
}
else
{
msgCloseResult = _messageBoxService.Show("IG Outlook", ResourceStrings.SaveChangesMessage_Text, MessageBoxButtons.YesNoCancel);
}
if (msgCloseResult == InteractionResult.Cancel)
{
_saveChanges = false;
return(false);
}
else
{
_saveChanges = msgCloseResult == InteractionResult.Yes;
if (_saveChanges)
{
InteractionResult msgInvalidDataResult = InteractionResult.None;
if (ActiveContact.HasErrors())
{
msgInvalidDataResult = _messageBoxService.Show("IG Outlook", ResourceStrings.InvalidContactDataMessage_Text, MessageBoxButtons.YesNo);
}
if (msgInvalidDataResult == InteractionResult.No)
{
return(true);
}
else
{
if (_isNewContact)
{
ContactService.AddContact(ActiveContact);
return(true);
}
}
ContactService.UpdateContact(ActiveContact);
EventAggregator.GetEvent <ContactUpdatedEvent>().Publish(ActiveContact);
}
return(true);
}
}
