public MainViewModel()
{
_model = new MainModel();
_dialogs = new ObservableCollection <DialogViewModel>(_model.Dialogs.Select(
d => new DialogViewModel(d)));
Dialogs = new ReadOnlyObservableCollection <DialogViewModel>(_dialogs);
Watch(_model.Dialogs, _dialogs, model => model.Messages);
AddDialogCommand = new DelegateCommand(() =>
{
if (!string.IsNullOrEmpty(LoginToAddDialog))
{
_model.AddDialog(LoginToAddDialog);
LoginToAddDialog = null; // Empty field.
}
});
}