/// <summary>
/// Construct a ShellViewModel.
/// </summary>
///
public ShellViewModel(IDataSourceManager DataSourceManager, IDialogService DialogService)
{
_contactsFilePath = $"{ Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) }\\Contacts.xml";
_dataSourceManager = DataSourceManager;
_dialogService = DialogService;
Contacts = new BindableCollection <Contact>(_dataSourceManager.LoadContactsFromFile(_contactsFilePath));
SaveConfirmationDialogCommand = new RelayCommand(Save);
CancelConfirmationDialogCommand = new RelayCommand(Cancel);
}
/// <summary>
/// Open cancelling dialog and load contacts in case of "Yes" or do nothing in case of "No".
/// </summary>
/// <param name="parameter">Specify the owner of cancelling dialog</param>
public void Cancel(object parameter)
{
DialogViewModelBase dialogViewModel = new DialogYesNoViewModel("Cancel changes", $"Are you sure you want to cancel your changes and load contacts from file: { _contactsFilePath }?");
if (_dialogService.OpenDialog(dialogViewModel, parameter as Window) == DialogResult.Yes)
{
Contacts = new BindableCollection <Contact>(_dataSourceManager.LoadContactsFromFile(_contactsFilePath));
SavingActive = false;
CancellingActive = false;
}
}