Question

我想做一个测试，首先重定向到空白页然后重定向到正常页面，但看起来它没有进行第二次重定向......

Browser.Base = Constants.ParkInfoDirectory;    //  "ParkInfo" folder
string s = string.Format("{0}/section_{1}.html", _parkId, _parkPage);    
//  URL = "/ParkInfo/ti217/5" for page 5 of Rainier

string blank = string.Format("{0}/Blank.html", _parkId);
Browser.Navigate(new Uri(blank, UriKind.Relative));
this.Browser.UpdateLayout();
Browser.Navigate(new Uri(s, UriKind.Relative));
this.Browser.UpdateLayout();

新版本：

            string s = string.Format("{0}/section_{1}.html", _parkId, _parkPage);    //  URL = "/ParkInfo/ti217/5" for page 5 of Rainier
            string blank = string.Format("{0}/section_blank.html", _parkId);
            Uri blank_ = new Uri(blank, UriKind.Relative);
            Browser.Navigate(new Uri(blank, UriKind.Relative));
            Browser.Navigated += new EventHandler<System.Windows.Navigation.NavigationEventArgs>(Browser_Navigated);
            {
                if (e.Uri == blank_)
                {
                    Browser.Navigate(new Uri(s, UriKind.Relative));
                }
            };
            Browser.Navigate(blank_);

Answer 1

您在一次UI thread执行中调用两个导航方法。它可能会导致一些问题。尝试在Navigate内添加第二个Dispatcher以延迟执行或订阅Navigated事件并从中调用第二个Navigate

Browser.Navigate(new Uri(blank, UriKind.Relative));
Dispatcher.BeginInvoke(() =>
{
    Browser.Navigate(new Uri(s, UriKind.Relative)); 
});

或者：

Uri blank_ = new Uri(blank, UriKind.Relative)
Browser.Navigated += (s, e) =>
{
    if (e.Uri == blank_)
    {
        Browser.Navigate(new Uri(s, UriKind.Relative)); 
    }
};
Browser.Navigate(blank_);

WebBrowser控件导航

1 个答案: