如何使用 C# 在 Visual Studio Ultimate 2012 中保存复选框的状态。即使在应用程序终止后,当我再次重新打开时,最后查看的状态应该是可见的?该怎么办?你能帮我写代码吗?
提前致谢.....
维萨里
如何使用 C# 在 Visual Studio Ultimate 2012 中保存复选框的状态。即使在应用程序终止后,当我再次重新打开时,最后查看的状态应该是可见的?该怎么办?你能帮我写代码吗?
提前致谢.....
维萨里
在这里你应该找到你需要的一切:http: //msdn.microsoft.com/en-us/library/windows/apps/hh986968.aspx
对于大多数 Windows 8 应用商店应用程序,数据可大致分为两类:
这篇文章Data Persistence & Application Life-Cycle Management应该可以帮助您了解您需要哪种类型的持久性。数据可以保存为键值对中的应用程序设置,但也可以保存为应用程序文件,通常存储在应用程序具有的沙盒文件系统访问权限中。
作为一个简单的例子,你应该有:
// Reference to Local Application Settings.
Windows.Storage.ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
// Reference to Roaming Application Settings.
Windows.Storage.ApplicationDataContainer roamingSettings = Windows.Storage.ApplicationData.Current.RoamingSettings;
// Persisting simple Application Settings.
localSettings.Values["myOption1"] = myBox1.isChecked;
roamingSettings.Values["myOption2"] = myBox2.isChecked;
// Reading settings back.
var mySavedOption1 = (bool)(localSettings.Values["myOption1"]);
var mySavedOption2 = (bool)(roamingSettings.Values["myOption2"]);
编辑
有效的测试示例:
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
// Reference to Local Application Settings.
Windows.Storage.ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
// Reading settings back.
object mySavedOption1;
localSettings.Values.TryGetValue("myOption1Key", out mySavedOption1);
if (mySavedOption1 != null)
myOption1.IsChecked = (bool)mySavedOption1;
}
private void myOption1_Checked_1(object sender, RoutedEventArgs e)
{
// Reference to Local Application Settings.
Windows.Storage.ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
// Persisting simple Application Settings.
localSettings.Values["myOption1Key"] = myOption1.IsChecked;
}
在xml中:<CheckBox x:Name="myOption1" Grid.Row="1" Checked="myOption1_Checked_1" Unchecked="myOption1_Checked_1"/>
您可以使用应用程序提供的本地存储:
Windows.Storage.ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
localSettings.Values["CheckboxState"] = "checked";
localSettings
然后,您可以通过从值中提取状态来使用相同的恢复。
应用程序设置是存储应用程序数据的最佳方式... http://msdn.microsoft.com/en-us/library/windows/apps/windows.storage.applicationdata.localsettings的最佳解决方案