Workshop

Quiz

1. How can you detect the theme being used on the phone?

2. How should you save the value of a TextBox control during a tombstone event so it can be restored later?

3. How can you retrieve the application version number?

Answers

1. The following code can be used to detect the current phone theme:

return (Visibility)Application.Current.Resources ["PhoneDarkThemeVisibility"] == Visibility.Visible) ? "dark" : "light";

2. The following code can be used to save the text value of a TextBox control named textBox1:

PhoneApplicationService.Current.State["textBox1"] = textBox1.Text;

3. The following code can be used to retrieve the application version number:

Assembly.GetExecutingAssembly().GetName().Version.ToString();