/// <summary>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached.
/// This parameter is typically used to configure the page.</param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
joke = e.Parameter as Models.JokeModel;
contentViewer.DataContext = joke;
jokeContent = joke.content;
index = MainPage.jokes.IndexOf(joke);
if (index == -1)
{
throw new ArgumentException("参数错误");
}
//if (index == 0)
//{
// appbarBack.IsEnabled = false;
//}
//else
//{
// appbarBack.IsEnabled = true;
//}
//if (index == maxIndex)
//{
// appbarForward.IsEnabled = false;
//}
//else
//{
// appbarForward.IsEnabled = true;
//}
}
/// <summary>
/// 返回主页 Navigate to homepage
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void appbarHome_Click(object sender, RoutedEventArgs e)
{
string tag = (sender as AppBarButton).Tag.ToString();
if (tag.Equals("Next"))
{
index += 1;
joke = MainPage.jokes[index];
}
else
{
index -= 1;
}
contentViewer.DataContext = joke;
jokeContent = joke.content;
if (index == 0)
{
appbarBack.IsEnabled = false;
}
else
{
appbarBack.IsEnabled = true;
}
if (index == maxIndex)
{
appbarForward.IsEnabled = false;
}
else
{
appbarForward.IsEnabled = true;
}
}
private void lvJokes_ItemClick(object sender, ItemClickEventArgs e)
{
Models.JokeModel model = e.ClickedItem as Models.JokeModel;
Frame.Navigate(typeof(DetailsPage), model);
}