网络浏览器网站超时

Question

这是针对Visual Studio Express 2012中的桌面C#应用程序。

我正在使用 webBrowser 控件登录到各种网站，但发现有些网站没有响应和超时。

我怀疑这可能是 webBrowser 控件本质上运行 IE7，但发现这些网站在运行 IE7 作为本机浏览器的旧 PC 上运行良好。我需要在 webBrowser 中设置某些内容以允许以下代码中的网站处理响应？

下面的代码导航到我遇到问题的网站。 如果您在本机浏览器中输入登录名和密码的任何值，它会立即响应并抛出错误，但在 webBrowser 中，它坐在那里等待响应并最终超时。

任何帮助将不胜感激！

米克

namespace WindowsFormsApplication11
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
           webBrowser1.Navigate(
               "https://www.my.telstra.com.au/myaccount/home?red=/myaccount/");
        }
    }
}

Answer 1

我经常使用 WenBrowserControl，甚至不记得有一次我没有任何问题，尤其是控件的浏览器模式。以下是帮助我解决其中许多问题的一些步骤：

1( 强制应用程序使用 InternetExplorer 设置：首先，我建议您尝试在

HKLMSoftwareMicrosoftInternet ExplorerMainFeatureControlFEATURE_BROWSER_EMULATION

和

HKLMSOFTWAREWow6432NodeMicrosoftInternet ExplorerMAINFeatureControlFEATURE_BROWSER_EMULATION`

值 9000 强制应用程序中的控件使用 IE9 设置。在这里，您可以找到将我带到此解决方案的问题。它在那里描述得非常详细。

2( IE浏览器中的设置：超时问题在我看来就像IE的某些安全功能阻止了某些内容。在我看来，Internet Explorer对网站内容有一点严格的规定。尝试将超时的网站添加到IE的Internetsettings下的安全站点。还要尝试降低安全站点的安全/阻止功能。

如果您还有进一步的信息，请告诉我。

Answer 2

这是完整的工作代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Microsoft.Win32;
using System.Diagnostics;

namespace WindowsFormsApplication11
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            SetBrowserFeatureControl();
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
           webBrowser1.Navigate("https://www.my.telstra.com.au/myaccount/home?red=/myaccount/");
        }
        private void SetBrowserFeatureControlKey(string feature, string appName, uint value)
        {
            using (var key = Registry.CurrentUser.CreateSubKey(
                String.Concat(@"SoftwareMicrosoftInternet ExplorerMainFeatureControl", feature),
                RegistryKeyPermissionCheck.ReadWriteSubTree))
            {
                key.SetValue(appName, (UInt32)value, RegistryValueKind.DWord);
            }
        }
        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_NINPUT_LEGACYMODE", 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(@"SOFTWAREMicrosoftInternet 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 = 10000; // Internet Explorer 10. Webpages containing standards-based !DOCTYPE directives are displayed in IE10 Standards mode. Default value for Internet Explorer 10.
            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;
                default:
                    // use IE10 mode by default
                    break;
            }
            return mode;
        }

    }
}