如何在应用程序启动时保留已保存的isolatedstoragesetting
我使用异常来终止事件:
protected void _BackKeyPress(object sender, CancelEventArgs e)
{
if (MessageBox.Show("Do you want to close the application?", "Q", MessageBoxButton.OKCancel) != MessageBoxResult.OK)
{
e.Cancel = true;
System.IO.IsolatedStorage.IsolatedStorageSettings.ApplicationSettings.Add("key2", "33r4 ");
}
else
{
if (IsolatedStorageSettings.ApplicationSettings.Contains("Key"))
{
IsolatedStorageSettings.ApplicationSettings["Key"] = App.Current.ViewModel;
}
else
{
IsolatedStorageSettings.ApplicationSettings.Add("Key", App.Current.ViewModel);
}
throw new Exception("ExitApplication");
}
}
我尝试保存在app.xaml.cs中声明的viewmodel,但是在启动时无法获取其中的isolatedstorage设置值。但它成功编译并运行。
答案 0 :(得分:1)
您需要调用IsolatedStorageSettings.Save
方法:
protected void _BackKeyPress(object sender, CancelEventArgs e)
{
if (MessageBox.Show("Do you want to close the application?", "Q", MessageBoxButton.OKCancel) != MessageBoxResult.OK)
{
e.Cancel = true;
System.IO.IsolatedStorage.IsolatedStorageSettings.ApplicationSettings.Add("key2", "33r4 ");
IsolatedStorageSettings.Save();
}
else
{
if (IsolatedStorageSettings.ApplicationSettings.Contains("Key"))
{
IsolatedStorageSettings.ApplicationSettings["Key"] = App.Current.ViewModel;
}
else
{
IsolatedStorageSettings.ApplicationSettings.Add("Key", App.Current.ViewModel);
}
IsolatedStorageSettings.Save();
throw new Exception("ExitApplication");
}
}