WebBrowser 设置IE兼容性

在窗体应用程序和wpf程序中会使用到WebBrowser 来显示一个网页，但是可能要显示的网页要求在特定的模式下运行，因此需要调整WebBrowser 对网页兼容性的设置；

通过在注册表中设置HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION中添加一个值，该值指示该程序以什么模式来运行IE

代码如下（下面代码是复制别人，在这里是为了方便查找，有一些看不懂）

 /// <summary>
/// 修改注册表信息来兼容当前程序
/// 
/// </summary>
static void SetWebBrowserFeatures(int ieVersion)
{
// don't change the registry if running in-proc inside Visual Studio
if (LicenseManager.UsageMode != LicenseUsageMode.Runtime)
return;
//获取程序及名称
var appName = System.IO.Path.GetFileName(System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName);
//得到浏览器的模式的值
UInt32 ieMode = GeoEmulationModee(ieVersion);
var featureControlRegKey = @"HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\";
//设置浏览器对应用程序（appName）以什么模式（ieMode）运行
Registry.SetValue(featureControlRegKey + "FEATURE_BROWSER_EMULATION",
appName, ieMode, RegistryValueKind.DWord);
// enable the features which are "On" for the full Internet Explorer browser
//不晓得设置有什么用
Registry.SetValue(featureControlRegKey + "FEATURE_ENABLE_CLIPCHILDREN_OPTIMIZATION",
appName, 1, RegistryValueKind.DWord);
//Registry.SetValue(featureControlRegKey + "FEATURE_AJAX_CONNECTIONEVENTS",
//    appName, 1, RegistryValueKind.DWord);
//Registry.SetValue(featureControlRegKey + "FEATURE_GPU_RENDERING",
//    appName, 1, RegistryValueKind.DWord);
//Registry.SetValue(featureControlRegKey + "FEATURE_WEBOC_DOCUMENT_ZOOM",
//    appName, 1, RegistryValueKind.DWord);
//Registry.SetValue(featureControlRegKey + "FEATURE_NINPUT_LEGACYMODE",
//    appName, 0, RegistryValueKind.DWord);
}
/// <summary>
/// 获取浏览器的版本
/// </summary>
/// <returns></returns>
static int GetBrowserVersion()
{
int browserVersion = 0;
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);
}
//如果小于7
if (browserVersion < 7)
{
throw new ApplicationException("不支持的浏览器版本!");
}
return browserVersion;
}
/// <summary>
/// 通过版本得到浏览器模式的值
/// </summary>
/// <param name="browserVersion"></param>
/// <returns></returns>
static UInt32 GeoEmulationModee(int browserVersion)
{
UInt32 mode = 11000; // Internet Explorer 11. Webpages containing standards-based !DOCTYPE directives are displayed in IE11 Standards mode. 
switch (browserVersion)
{
case 7:
mode = 7000; // Webpages containing standards-based !DOCTYPE directives are displayed in IE7 Standards mode. 
break;
case 8:
mode = 8000; // Webpages containing standards-based !DOCTYPE directives are displayed in IE8 mode. 
break;
case 9:
mode = 9000; // Internet Explorer 9. Webpages containing standards-based !DOCTYPE directives are displayed in IE9 mode.                    
break;
case 10:
mode = 10000; // Internet Explorer 10.
break;
case 11:
mode = 11000; // Internet Explorer 11
break;
}
return mode;
}

在使用WebBrowser显示一个兼容性要求的网页时，修改SetWebBrowserFeatures方法中后再显示一个网页即可,ieVersion为要兼容的IE的版本