public ThreadPageViewModel()
{
ReloadDataNavigationBack = true;
_service = HttpService.CreateInstance();
_switchFavoriteThreadCommand = new SwitchFavoriteThreadCommand(_service, (result) => { if (result) { _isFavorite = !_isFavorite; ReinitFavoriteButton(); } });
_switchFavoriteThreadCommand.CanExecuteChanged += (o, e) =>
{
IsProgressVisible = !_switchFavoriteThreadCommand.CanExecuteIt;
(Page.ApplicationBar.Buttons[FAV_INDEX] as ApplicationBarIconButton).IsEnabled = _switchFavoriteThreadCommand.CanExecuteIt;
};
SurveyCommand = new SurveyCommand(_service, (survey) =>
{
HeaderItem.Survey = survey;
});
SurveyCommand.CanExecuteChanged += (o, e) => { IsProgressVisible = !SurveyCommand.CanExecute(null); };
LoadCommand = new LoadThreadPageCommand(_service, (e) => Dispatcher.BeginInvoke(() => OnDownloadedPage(e.Context)));
LoadCommand.CanExecuteChanged += (o, e) =>
{
IsProgressVisible = !LoadCommand.CanExecuteIt;
(Page.ApplicationBar.Buttons[RELOAD_INDEX] as ApplicationBarIconButton).IsEnabled = LoadCommand.CanExecuteIt;
};
NotifyPropertyChange("BackColorConverter");
}
public override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
(Page.ApplicationBar.Buttons[ADD_INDEX] as ApplicationBarIconButton).IsEnabled = AppSettings.IsLoggedIn;
_client = HttpService.CreateInstance();
SwitchFavoriteThreadCommand = new Commands.SwitchFavoriteThreadCommand(_client);
SwitchFavoriteThreadCommand.CanExecuteChanged += (o,e1) => { IsProgressVisible = !SwitchFavoriteThreadCommand.CanExecuteIt;};
LoadCommand = new LoadMainPageCommand(_client, (ea) => Dispatcher.BeginInvoke(() => OnDownloadedPage(ea.Context)));
LoadCommand.CanExecuteChanged += (o, ea) =>
{
bool can = LoadCommand.CanExecute(null);
IsProgressVisible = !can;
(Page.ApplicationBar.Buttons[RELOAD_INDEX] as ApplicationBarIconButton).IsEnabled = can;
};
if (e.NavigationMode == System.Windows.Navigation.NavigationMode.New)
{
LoadCommand.Execute(null);
}
}
