我可以从页面类设置 silverlight 应用程序的区域性吗？

发布于 2024-10-15 20:42:21 字数 488 浏览 3 评论 0原文

在我的 SL 应用程序中，我有一个连接到 Web 服务的页面来检索一些文化信息，例如日期格式。由于此信息在 silverlight 应用程序实例化时未知，因此我无法在公共 App() 构造函数中设置此信息。以下几行似乎不适用于页面类内服务调用的异步完成方法：

var dateFormatString = e.Result.DateFormatString;
Thread.CurrentThread.CurrentCulture = (CultureInfo)Thread.CurrentThread.CurrentCulture.Clone();
Thread.CurrentThread.CurrentCulture.DateTimeFormat.ShortDatePattern = dateFormatString;

Is there a way to set theculture of the silverlight application from a page class?

原文

In my SL application, I have a page that connects to a web service to retrieve some culture information such as date formats. As this information is not known at the instantiation of the silverlight application, I cannot set this in the public App() constructor. The following lines don't seem to work in the async completed method of the service call within the page class:

var dateFormatString = e.Result.DateFormatString;
Thread.CurrentThread.CurrentCulture = (CultureInfo)Thread.CurrentThread.CurrentCulture.Clone();
Thread.CurrentThread.CurrentCulture.DateTimeFormat.ShortDatePattern = dateFormatString;

Is there a way to set the culture of the silverlight application from a page class?

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稚然 2024-10-22 20:42:21

将其设置在主线程中（您的 asyncCompleted 可能在不同的线程上运行）。
如果您不知道该怎么做，请告诉我。
没有必要克隆文化。（代码中的第 2 行）。
只需直接设置即可：

var dateFormatString = e.Result.DateFormatString;
Thread.CurrentThread.CurrentCulture.DateTimeFormat.ShortDatePattern = dateFormatString;

** 编辑添加了从 UI 线程调用的示例代码。
您始终可以将状态传递给异步 WCF 调用。在这种情况下，我正在传递一个调度程序。
调用回调后，使用 Dispatcher 更改 UI 线程中的 UI 区域性。
这是我随手写下的，但应该足以让您了解需要做什么。

    public void SetCulture()
    {
        YourWcfProxy.GetCultureInfoCompleted += GetCultureInfoCompleted;
        object state = Dispatcher; // variable just for clarity.
        YourWcfProxy.GetCultureInfoAsync(state);
    }

    private void GetCultureInfoCompleted(object sender, GetCultureInfoCompletedCompletedEventArgs e)
    {
        Dispatcher dispatcher = e.UserState as Dispatcher;
        dispatcher.BeginInvoke(() =>
        {
            // set the ui culture here!
        }
        );
    }

** 编辑2（回答问题）

如果您手边有一个UIElement，您可以使用它的Dispatcher 属性。
否则使用静态：

Deployment.Current.Dispatcher

Set it in the main thread (your asyncCompleted is probably running on a different thread).
Let me know if you do not know how to do this.
There is no need to clone the Culture. (line 2 in your code).
Just set it directly:

var dateFormatString = e.Result.DateFormatString;
Thread.CurrentThread.CurrentCulture.DateTimeFormat.ShortDatePattern = dateFormatString;

** EDIT added sample code to call from UI Thread.
You can always pass state to an async wcf call. In this case I am passing a Dispatcher.
Once the callback is called use the Dispatcher to change the UI Culture in the UI thread.
I wrote this off the top of my head, but should be sufficient to give you an idea of what you need to do.

    public void SetCulture()
    {
        YourWcfProxy.GetCultureInfoCompleted += GetCultureInfoCompleted;
        object state = Dispatcher; // variable just for clarity.
        YourWcfProxy.GetCultureInfoAsync(state);
    }

    private void GetCultureInfoCompleted(object sender, GetCultureInfoCompletedCompletedEventArgs e)
    {
        Dispatcher dispatcher = e.UserState as Dispatcher;
        dispatcher.BeginInvoke(() =>
        {
            // set the ui culture here!
        }
        );
    }

** EDIT 2 (answer question)

If you have a UIElement handy, you can use it's Disptacher property.
Otherwise use the static: