private void DemoDataPersistenceCodeThroughSettings()
{
// Persisting simple Application Settings.
localSettings.Values["CurrentReadingBook"] = "Migrating to Windows Phone";
roamingSettings.Values["LastPageReadOnCurrentBook"] = 20;
// Organizing settings in containers.
Windows.Storage.ApplicationDataContainer container = localSettings.CreateContainer("FavoriteBooks", Windows.Storage.ApplicationDataCreateDisposition.Always);
if (localSettings.Containers.ContainsKey("FavoriteBooks"))
{
localSettings.Containers["FavoriteBooks"].Values["FavoriteWindowsPhoneBook"] = "Windows Phone Recipes";
}
// Reading settings back.
string currentBook = string.Empty;
int lastPageReadOnCurrentBook;
if (localSettings.Values["CurrentReadingBook"] != null)
{
currentBook = localSettings.Values["CurrentReadingBook"].ToString();
}
if (roamingSettings.Values["LastPageReadOnCurrentBook"] != null)
{
lastPageReadOnCurrentBook = Convert.ToInt16(roamingSettings.Values["LastPageReadOnCurrentBook"]);
}
bool hasFavoritesContainer = localSettings.Containers.ContainsKey("FavoriteBooks");
string favoriteWindowsPhoneBook = string.Empty;
if (hasFavoritesContainer)
{
if (localSettings.Containers["FavoriteBooks"].Values.ContainsKey("FavoriteWindowsPhoneBook"))
{
favoriteWindowsPhoneBook = localSettings.Containers["FavoriteBooks"].Values["FavoriteWindowsPhoneBook"].ToString();
}
}
// Deleting Settings from Storage.
localSettings.Values.Remove("CurrentReadingBook");
roamingSettings.Values.Remove("LastPageReadOnCurrentBook");
localSettings.DeleteContainer("FavoriteBooks");
}
/// <summary>
/// 删除容器
/// </summary>
/// <param name="ContainerName">容器名字</param>
public void RemoveContainer(Object ContainerName)
{
localSetting.DeleteContainer(ContainerName.ToString());
}
/// <summary>
/// 删除设置容器
/// </summary>
/// <param name="key"></param>
public static void RemoveContainer(string containerName)
{
localSettings.DeleteContainer(containerName);
}