有没有办法在Silverlight导航应用程序中获取上一页URL [英] Is there any way to get previous page url in silverlight navigation application

问题描述

有什么方法可以在Silverlight导航应用程序中获取上一页URL. 我正在使用导航服务.

Is there any way to get previous page url in silverlight navigation application. I am using navigation Service.

推荐答案

无法获取导航历史记录，您可以通过听导航服务事件 Frame.Navigated 框架导航).

There is no way to get the navigation history, you can store it by yourself by listening the navigation service event NavigationService.Navigated (or Frame.Navigated for frame navigation).

private List<Uri> _navigationHistory = new List<Uri>();

void  onNavigated(object sender, NavigationEventArgs e)
{
    _navigationHistory.Add(e.Uri);
}

private Uri getBackUri()
{
        return _navigationHistory.Count > 1
            ? _navigationHistory[_navigationHistory.Count - 2]
            : null;
}

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