C# webbrowser Ajax call

Question

Używam kontrolki przeglądarki zawartej w aplikacji C# WPF .NET4. Ilekroć ręcznie wciskam przycisk w formularzu, przeglądarka zawiesza się na komunikat "Twoje zgłoszenie jest przetwarzane" i nic się nie dzieje. Jeśli zrobię to samo w pełnej przeglądarce IE, strona będzie przetwarzana normalnie, tworząc wyniki. Czego mi brakuje? Dzięki kod za pomocą przycisku jest następujący

<a onclick="startSearch();" href="javascript:void(-1);" name="btnNext" class="btn floatLe noClear btnSubmit btnRight"> 
<span>Continue</span> 
</a> 

Answer 1

Updated, Obecnie używać i polecić zestaw funkcji, które można znaleźć here.

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Kontrola WebBrowser (obie wersje WPF i WinForms) zachowuje się na wiele sposobów inaczej niż w pełnym IE. Możesz zaimplementować Feature Control, aby jego zachowanie było jak najbardziej zbliżone do IE (szczególnie, FEATURE_BROWSER_EMULATION). Mam nadzieję, że problem zniknie. Oto kod:

private void SetBrowserFeatureControlKey(string feature, string appName, uint value) 
{ 
    using (var key = Registry.CurrentUser.CreateSubKey(
     String.Concat(@"Software\Microsoft\Internet Explorer\Main\FeatureControl\", feature), 
     RegistryKeyPermissionCheck.ReadWriteSubTree)) 
    { 
     key.SetValue(appName, (UInt32)value, RegistryValueKind.DWord); 
    } 
} 

Na przykład:

private void SetBrowserFeatureControl() 
{ 
    // http://msdn.microsoft.com/en-us/library/ee330720(v=vs.85).aspx 

    // FeatureControl settings are per-process 
    var fileName = System.IO.Path.GetFileName(Process.GetCurrentProcess().MainModule.FileName); 

    // make the control is not running inside Visual Studio Designer 
    if (String.Compare(fileName, "devenv.exe", true) == 0 || String.Compare(fileName, "XDesProc.exe", true) == 0) 
     return; 

    SetBrowserFeatureControlKey("FEATURE_BROWSER_EMULATION", fileName, GetBrowserEmulationMode()); // Webpages containing standards-based !DOCTYPE directives are displayed in IE10 Standards mode. 
    SetBrowserFeatureControlKey("FEATURE_AJAX_CONNECTIONEVENTS", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_ENABLE_CLIPCHILDREN_OPTIMIZATION", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_MANAGE_SCRIPT_CIRCULAR_REFS", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_DOMSTORAGE ", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_GPU_RENDERING ", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_IVIEWOBJECTDRAW_DMLT9_WITH_GDI ", fileName, 0); 
    SetBrowserFeatureControlKey("FEATURE_DISABLE_LEGACY_COMPRESSION", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_LOCALMACHINE_LOCKDOWN", fileName, 0); 
    SetBrowserFeatureControlKey("FEATURE_BLOCK_LMZ_OBJECT", fileName, 0); 
    SetBrowserFeatureControlKey("FEATURE_BLOCK_LMZ_SCRIPT", fileName, 0); 
    SetBrowserFeatureControlKey("FEATURE_DISABLE_NAVIGATION_SOUNDS", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_SCRIPTURL_MITIGATION", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_SPELLCHECKING", fileName, 0); 
    SetBrowserFeatureControlKey("FEATURE_STATUS_BAR_THROTTLING", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_TABBED_BROWSING", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_VALIDATE_NAVIGATE_URL", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_WEBOC_DOCUMENT_ZOOM", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_WEBOC_POPUPMANAGEMENT", fileName, 0); 
    SetBrowserFeatureControlKey("FEATURE_WEBOC_MOVESIZECHILD", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_ADDON_MANAGEMENT", fileName, 0); 
    SetBrowserFeatureControlKey("FEATURE_WEBSOCKET", fileName, 1); 
    SetBrowserFeatureControlKey("FEATURE_WINDOW_RESTRICTIONS ", fileName, 0); 
    SetBrowserFeatureControlKey("FEATURE_XMLHTTP", fileName, 1); 
} 

private UInt32 GetBrowserEmulationMode() 
{ 
    int browserVersion = 7; 
    using (var ieKey = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Internet Explorer", 
     RegistryKeyPermissionCheck.ReadSubTree, 
     System.Security.AccessControl.RegistryRights.QueryValues)) 
    { 
     var version = ieKey.GetValue("svcVersion"); 
     if (null == version) 
     { 
      version = ieKey.GetValue("Version"); 
      if (null == version) 
       throw new ApplicationException("Microsoft Internet Explorer is required!"); 
     } 
     int.TryParse(version.ToString().Split('.')[0], out browserVersion); 
    } 

    UInt32 mode = 11000; // Internet Explorer 11. Webpages containing standards-based !DOCTYPE directives are displayed in IE11 Standards mode. Default value for Internet Explorer 11. 
    switch (browserVersion) 
    { 
     case 7: 
      mode = 7000; // Webpages containing standards-based !DOCTYPE directives are displayed in IE7 Standards mode. Default value for applications hosting the WebBrowser Control. 
      break; 
     case 8: 
      mode = 8000; // Webpages containing standards-based !DOCTYPE directives are displayed in IE8 mode. Default value for Internet Explorer 8 
      break; 
     case 9: 
      mode = 9000; // Internet Explorer 9. Webpages containing standards-based !DOCTYPE directives are displayed in IE9 mode. Default value for Internet Explorer 9. 
      break; 
     case 10: 
      mode = 10000; // Internet Explorer 10. Webpages containing standards-based !DOCTYPE directives are displayed in IE10 mode. Default value for Internet Explorer 10. 
      break; 
     default: 
      // use IE11 mode by default 
      break; 
    } 

    return mode; 
} 

Należy wymyślić własną set of features i zarejestrować je przed WebBrowser został zainicjowany, na przykład, w głównym konstruktorem forma:

public MainWindow() 
{ 
    SetBrowserFeatureControl(); 

    InitializeComponent(); 
//... 
}