英文异常消息

try
{
    ......
}
catch (Exception ex)
{
      throw new UserFriendlyException(L("ExceptionmessagesinEnglish"));
}

然后进入本地化文件夹，把它放在projectName.xml中，然后添加

<text name="ExceptionmessagesinEnglish">Exception Message in English</text>

使用扩展方法覆盖捕获块中的异常消息，检查抛出的消息是否来自代码，如下所述。

    public static string GetEnglishMessageAndStackTrace(this Exception ex)
    {
        CultureInfo currentCulture = Thread.CurrentThread.CurrentUICulture;
        try
        {

            dynamic exceptionInstanceLocal = System.Activator.CreateInstance(ex.GetType());
            string str;
            Thread.CurrentThread.CurrentUICulture = new CultureInfo("en-US");

            if (ex.Message == exceptionInstanceLocal.Message)
            {
                dynamic exceptionInstanceENG = System.Activator.CreateInstance(ex.GetType());

                str = exceptionInstanceENG.ToString() + ex.StackTrace;

            }
            else
            {
                str = ex.ToString();
            }
            Thread.CurrentThread.CurrentUICulture = currentCulture;

            return str;

        }
        catch (Exception)
        {
            Thread.CurrentThread.CurrentUICulture = currentCulture;

            return ex.ToString();
        }

Setting Thread.CurrentThread.CurrentUICulture will be used to localize the exceptions. If you need two kinds of exceptions (one for the user, one for you) you can use the following function to translate the exception-message. It's searching in the .NET-Libraries resources for the original text to get the resource-key and then return the translated value. But there's one weakness I didn't find a good solution yet: Messages, that contains {0} in resources will not be found. If anyone has a good solution I would be grateful.

public static string TranslateExceptionMessage(Exception ex, CultureInfo targetCulture)
{
    try
    {
        Assembly assembly = ex.GetType().Assembly;
        ResourceManager resourceManager = new ResourceManager(assembly.GetName().Name, assembly);
        ResourceSet originalResources = resourceManager.GetResourceSet(Thread.CurrentThread.CurrentUICulture, createIfNotExists: true, tryParents: true);
        ResourceSet targetResources = resourceManager.GetResourceSet(targetCulture, createIfNotExists: true, tryParents: true);
        foreach (DictionaryEntry originalResource in originalResources)
            if (originalResource.Value.ToString().Equals(ex.Message.ToString(), StringComparison.Ordinal))
                return targetResources.GetString(originalResource.Key.ToString(), ignoreCase: false); // success

    }
    catch { }
    return ex.Message; // failed (error or cause it's not smart enough to find texts with '{0}'-patterns)
}

我也遇到过同样的情况，我在这里和其他地方找到的所有答案都没有帮助或不令人满意:

强制异常语言为英文 c# -当应用程序在另一种语言时，获得英语异常消息? 调试时如何将Visual Studio异常消息语言更改为英文 如何处理异常消息的翻译? 如何完全避免本地化的.NET异常消息

线程。CurrentUICulture改变了。net异常的语言，但是Win32Exception没有改变，Win32Exception使用Windows UI本身语言中的Windows资源。因此，我从来没有设法用英语而不是德语打印Win32Exception的消息，甚至没有使用中所描述的FormatMessage() 如何获得Win32Exception的英文?

因此，我创建了自己的解决方案，它将不同语言的大多数现有异常消息存储在外部文件中。您将不会用您想要的语言得到非常精确的消息，但是您将得到该语言的消息，这比您目前得到的消息(可能是用一种您不理解的语言得到的消息)要好得多。

该类的静态函数可以在使用不同语言的Windows安装上执行: CreateMessages()创建特定于区域性的文本 SaveMessagesToXML()将它们保存到创建或加载语言时的尽可能多的XML文件中 LoadMessagesFromXML()用特定于语言的消息加载所有XML文件

在使用不同语言的不同Windows安装上创建XML文件时，您很快就会拥有所需的所有语言。 也许当你安装了多个MUI语言包时，你可以在1个Windows上为不同的语言创建文本，但我还没有测试过。

使用VS2008测试，可以使用了。欢迎评论和建议!

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Globalization;
using System.Reflection;
using System.Threading;
using System.Xml;

public struct CException
{
  //----------------------------------------------------------------------------
  public CException(Exception i_oException)
  {
    m_oException = i_oException;
    m_oCultureInfo = null;
    m_sMessage = null;
  }

  //----------------------------------------------------------------------------
  public CException(Exception i_oException, string i_sCulture)
  {
    m_oException = i_oException;
    try
    { m_oCultureInfo = new CultureInfo(i_sCulture); }
    catch
    { m_oCultureInfo = CultureInfo.InvariantCulture; }
    m_sMessage = null;
  }

  //----------------------------------------------------------------------------
  public CException(Exception i_oException, CultureInfo i_oCultureInfo)
  {
    m_oException = i_oException;
    m_oCultureInfo = i_oCultureInfo == null ? CultureInfo.InvariantCulture : i_oCultureInfo;
    m_sMessage = null;
  }

  //----------------------------------------------------------------------------
  // GetMessage
  //----------------------------------------------------------------------------
  public string GetMessage() { return GetMessage(m_oException, m_oCultureInfo); }

  public string GetMessage(String i_sCulture) { return GetMessage(m_oException, i_sCulture); }

  public string GetMessage(CultureInfo i_oCultureInfo) { return GetMessage(m_oException, i_oCultureInfo); }

  public static string GetMessage(Exception i_oException) { return GetMessage(i_oException, CultureInfo.InvariantCulture); }

  public static string GetMessage(Exception i_oException, string i_sCulture)
  {
    CultureInfo oCultureInfo = null;
    try
    { oCultureInfo = new CultureInfo(i_sCulture); }
    catch
    { oCultureInfo = CultureInfo.InvariantCulture; }
    return GetMessage(i_oException, oCultureInfo);
  }

  public static string GetMessage(Exception i_oException, CultureInfo i_oCultureInfo)
  {
    if (i_oException == null) return null;
    if (i_oCultureInfo == null) i_oCultureInfo = CultureInfo.InvariantCulture;

    if (ms_dictCultureExceptionMessages == null) return null;
    if (!ms_dictCultureExceptionMessages.ContainsKey(i_oCultureInfo))
      return CreateMessage(i_oException, i_oCultureInfo);

    Dictionary<string, string> dictExceptionMessage = ms_dictCultureExceptionMessages[i_oCultureInfo];
    string sExceptionName = i_oException.GetType().FullName;
    sExceptionName = MakeXMLCompliant(sExceptionName);
    Win32Exception oWin32Exception = (Win32Exception)i_oException;
    if (oWin32Exception != null)
      sExceptionName += "_" + oWin32Exception.NativeErrorCode;
    if (dictExceptionMessage.ContainsKey(sExceptionName))
      return dictExceptionMessage[sExceptionName];
    else
      return CreateMessage(i_oException, i_oCultureInfo);
  }

  //----------------------------------------------------------------------------
  // CreateMessages
  //----------------------------------------------------------------------------
  public static void CreateMessages(CultureInfo i_oCultureInfo)
  {
    Thread oTH = new Thread(new ThreadStart(CreateMessagesInThread));
    if (i_oCultureInfo != null)
    {
      oTH.CurrentCulture = i_oCultureInfo;
      oTH.CurrentUICulture = i_oCultureInfo;
    }
    oTH.Start();
    while (oTH.IsAlive)
    { Thread.Sleep(10); }
  }

  //----------------------------------------------------------------------------
  // LoadMessagesFromXML
  //----------------------------------------------------------------------------
  public static void LoadMessagesFromXML(string i_sPath, string i_sBaseFilename)
  {
    if (i_sBaseFilename == null) i_sBaseFilename = msc_sBaseFilename;

    string[] asFiles = null;
    try
    {
      asFiles = System.IO.Directory.GetFiles(i_sPath, i_sBaseFilename + "_*.xml");
    }
    catch { return; }

    ms_dictCultureExceptionMessages.Clear();
    for (int ixFile = 0; ixFile < asFiles.Length; ixFile++)
    {
      string sXmlPathFilename = asFiles[ixFile];

      XmlDocument xmldoc = new XmlDocument();
      try
      {
        xmldoc.Load(sXmlPathFilename);
        XmlNode xmlnodeRoot = xmldoc.SelectSingleNode("/" + msc_sXmlGroup_Root);

        string sCulture = xmlnodeRoot.SelectSingleNode(msc_sXmlGroup_Info + "/" + msc_sXmlData_Culture).Value;
        CultureInfo oCultureInfo = new CultureInfo(sCulture);

        XmlNode xmlnodeMessages = xmlnodeRoot.SelectSingleNode(msc_sXmlGroup_Messages);
        XmlNodeList xmlnodelistMessage = xmlnodeMessages.ChildNodes;
        Dictionary<string, string> dictExceptionMessage = new Dictionary<string, string>(xmlnodelistMessage.Count + 10);
        for (int ixNode = 0; ixNode < xmlnodelistMessage.Count; ixNode++)
          dictExceptionMessage.Add(xmlnodelistMessage[ixNode].Name, xmlnodelistMessage[ixNode].InnerText);
        ms_dictCultureExceptionMessages.Add(oCultureInfo, dictExceptionMessage);
      }
      catch
      { return; }
    }
  }

  //----------------------------------------------------------------------------
  // SaveMessagesToXML
  //----------------------------------------------------------------------------
  public static void SaveMessagesToXML(string i_sPath, string i_sBaseFilename)
  {
    if (i_sBaseFilename == null) i_sBaseFilename = msc_sBaseFilename;

    foreach (KeyValuePair<CultureInfo, Dictionary<string, string>> kvpCultureExceptionMessages in ms_dictCultureExceptionMessages)
    {
      string sXmlPathFilename = i_sPath + i_sBaseFilename + "_" + kvpCultureExceptionMessages.Key.TwoLetterISOLanguageName + ".xml";
      Dictionary<string, string> dictExceptionMessage = kvpCultureExceptionMessages.Value;

      XmlDocument xmldoc = new XmlDocument();
      XmlWriter xmlwriter = null;
      XmlWriterSettings writerSettings = new XmlWriterSettings();
      writerSettings.Indent = true;

      try
      {
        XmlNode xmlnodeRoot = xmldoc.CreateElement(msc_sXmlGroup_Root);
        xmldoc.AppendChild(xmlnodeRoot);
        XmlNode xmlnodeInfo = xmldoc.CreateElement(msc_sXmlGroup_Info);
        XmlNode xmlnodeMessages = xmldoc.CreateElement(msc_sXmlGroup_Messages);
        xmlnodeRoot.AppendChild(xmlnodeInfo);
        xmlnodeRoot.AppendChild(xmlnodeMessages);

        XmlNode xmlnodeCulture = xmldoc.CreateElement(msc_sXmlData_Culture);
        xmlnodeCulture.InnerText = kvpCultureExceptionMessages.Key.Name;
        xmlnodeInfo.AppendChild(xmlnodeCulture);

        foreach (KeyValuePair<string, string> kvpExceptionMessage in dictExceptionMessage)
        {
          XmlNode xmlnodeMsg = xmldoc.CreateElement(kvpExceptionMessage.Key);
          xmlnodeMsg.InnerText = kvpExceptionMessage.Value;
          xmlnodeMessages.AppendChild(xmlnodeMsg);
        }

        xmlwriter = XmlWriter.Create(sXmlPathFilename, writerSettings);
        xmldoc.WriteTo(xmlwriter);
      }
      catch (Exception e)
      { return; }
      finally
      { if (xmlwriter != null) xmlwriter.Close(); }
    }
  }

  //----------------------------------------------------------------------------
  // CreateMessagesInThread
  //----------------------------------------------------------------------------
  private static void CreateMessagesInThread()
  {
    Thread.CurrentThread.Name = "CException.CreateMessagesInThread";

    Dictionary<string, string> dictExceptionMessage = new Dictionary<string, string>(0x1000);

    GetExceptionMessages(dictExceptionMessage);
    GetExceptionMessagesWin32(dictExceptionMessage);

    ms_dictCultureExceptionMessages.Add(Thread.CurrentThread.CurrentUICulture, dictExceptionMessage);
  }

  //----------------------------------------------------------------------------
  // GetExceptionTypes
  //----------------------------------------------------------------------------
  private static List<Type> GetExceptionTypes()
  {
    Assembly[] aoAssembly = AppDomain.CurrentDomain.GetAssemblies();

    List<Type> listoExceptionType = new List<Type>();

    Type oExceptionType = typeof(Exception);
    for (int ixAssm = 0; ixAssm < aoAssembly.Length; ixAssm++)
    {
      if (!aoAssembly[ixAssm].GlobalAssemblyCache) continue;
      Type[] aoType = aoAssembly[ixAssm].GetTypes();
      for (int ixType = 0; ixType < aoType.Length; ixType++)
      {
        if (aoType[ixType].IsSubclassOf(oExceptionType))
          listoExceptionType.Add(aoType[ixType]);
      }
    }

    return listoExceptionType;
  }

  //----------------------------------------------------------------------------
  // GetExceptionMessages
  //----------------------------------------------------------------------------
  private static void GetExceptionMessages(Dictionary<string, string> i_dictExceptionMessage)
  {
    List<Type> listoExceptionType = GetExceptionTypes();
    for (int ixException = 0; ixException < listoExceptionType.Count; ixException++)
    {
      Type oExceptionType = listoExceptionType[ixException];
      string sExceptionName = MakeXMLCompliant(oExceptionType.FullName);
      try
      {
        if (i_dictExceptionMessage.ContainsKey(sExceptionName))
          continue;
        Exception e = (Exception)(Activator.CreateInstance(oExceptionType));
        i_dictExceptionMessage.Add(sExceptionName, e.Message);
      }
      catch (Exception)
      { i_dictExceptionMessage.Add(sExceptionName, null); }
    }
  }

  //----------------------------------------------------------------------------
  // GetExceptionMessagesWin32
  //----------------------------------------------------------------------------
  private static void GetExceptionMessagesWin32(Dictionary<string, string> i_dictExceptionMessage)
  {
    string sTypeName = MakeXMLCompliant(typeof(Win32Exception).FullName) + "_";
    for (int iError = 0; iError < 0x4000; iError++)  // Win32 errors may range from 0 to 0xFFFF
    {
      Exception e = new Win32Exception(iError);
      if (!e.Message.StartsWith("Unknown error (", StringComparison.OrdinalIgnoreCase))
        i_dictExceptionMessage.Add(sTypeName + iError, e.Message);
    }
  }

  //----------------------------------------------------------------------------
  // CreateMessage
  //----------------------------------------------------------------------------
  private static string CreateMessage(Exception i_oException, CultureInfo i_oCultureInfo)
  {
    CException oEx = new CException(i_oException, i_oCultureInfo);
    Thread oTH = new Thread(new ParameterizedThreadStart(CreateMessageInThread));
    oTH.Start(oEx);
    while (oTH.IsAlive)
    { Thread.Sleep(10); }
    return oEx.m_sMessage;
  }

  //----------------------------------------------------------------------------
  // CreateMessageInThread
  //----------------------------------------------------------------------------
  private static void CreateMessageInThread(Object i_oData)
  {
    if (i_oData == null) return;
    CException oEx = (CException)i_oData;
    if (oEx.m_oException == null) return;

    Thread.CurrentThread.CurrentUICulture = oEx.m_oCultureInfo == null ? CultureInfo.InvariantCulture : oEx.m_oCultureInfo;
    // create new exception in desired culture
    Exception e = null;
    Win32Exception oWin32Exception = (Win32Exception)(oEx.m_oException);
    if (oWin32Exception != null)
      e = new Win32Exception(oWin32Exception.NativeErrorCode);
    else
    {
      try
      {
        e = (Exception)(Activator.CreateInstance(oEx.m_oException.GetType()));
      }
      catch { }
    }
    if (e != null)
      oEx.m_sMessage = e.Message;
  }

  //----------------------------------------------------------------------------
  // MakeXMLCompliant
  // from https://www.w3.org/TR/xml/
  //----------------------------------------------------------------------------
  private static string MakeXMLCompliant(string i_sName)
  {
    if (string.IsNullOrEmpty(i_sName))
      return "_";

    System.Text.StringBuilder oSB = new System.Text.StringBuilder();
    for (int ixChar = 0; ixChar < (i_sName == null ? 0 : i_sName.Length); ixChar++)
    {
      char character = i_sName[ixChar];
      if (IsXmlNodeNameCharacterValid(ixChar, character))
        oSB.Append(character);
    }
    if (oSB.Length <= 0)
      oSB.Append("_");
    return oSB.ToString();
  }

  //----------------------------------------------------------------------------
  private static bool IsXmlNodeNameCharacterValid(int i_ixPos, char i_character)
  {
    if (i_character == ':') return true;
    if (i_character == '_') return true;
    if (i_character >= 'A' && i_character <= 'Z') return true;
    if (i_character >= 'a' && i_character <= 'z') return true;
    if (i_character >= 0x00C0 && i_character <= 0x00D6) return true;
    if (i_character >= 0x00D8 && i_character <= 0x00F6) return true;
    if (i_character >= 0x00F8 && i_character <= 0x02FF) return true;
    if (i_character >= 0x0370 && i_character <= 0x037D) return true;
    if (i_character >= 0x037F && i_character <= 0x1FFF) return true;
    if (i_character >= 0x200C && i_character <= 0x200D) return true;
    if (i_character >= 0x2070 && i_character <= 0x218F) return true;
    if (i_character >= 0x2C00 && i_character <= 0x2FEF) return true;
    if (i_character >= 0x3001 && i_character <= 0xD7FF) return true;
    if (i_character >= 0xF900 && i_character <= 0xFDCF) return true;
    if (i_character >= 0xFDF0 && i_character <= 0xFFFD) return true;
    // if (i_character >= 0x10000 && i_character <= 0xEFFFF) return true;

    if (i_ixPos > 0)
    {
      if (i_character == '-') return true;
      if (i_character == '.') return true;
      if (i_character >= '0' && i_character <= '9') return true;
      if (i_character == 0xB7) return true;
      if (i_character >= 0x0300 && i_character <= 0x036F) return true;
      if (i_character >= 0x203F && i_character <= 0x2040) return true;
    }
    return false;
  }

  private static string msc_sBaseFilename = "exception_messages";
  private static string msc_sXmlGroup_Root = "exception_messages";
  private static string msc_sXmlGroup_Info = "info";
  private static string msc_sXmlGroup_Messages = "messages";
  private static string msc_sXmlData_Culture = "culture";

  private Exception m_oException;
  private CultureInfo m_oCultureInfo;
  private string m_sMessage;

  static Dictionary<CultureInfo, Dictionary<string, string>> ms_dictCultureExceptionMessages = new Dictionary<CultureInfo, Dictionary<string, string>>();
}

internal class Program
{
  public static void Main()
  {
    CException.CreateMessages(null);
    CException.SaveMessagesToXML(@"d:\temp\", "emsg");
    CException.LoadMessagesFromXML(@"d:\temp\", "emsg");
  }
}

Windows需要安装你想要使用的UI语言。如果没有，它没有办法神奇地知道翻译后的信息是什么。

在安装了pt-PT的en-US windows 7 ultimate中，以下代码:

Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo("pt-PT");
string msg1 = new DirectoryNotFoundException().Message;

Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo("en-US");
string msg2 = new FileNotFoundException().Message;

Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo("fr-FR");
string msg3 = new FileNotFoundException().Message;

生成pt-PT, en-US和en-US格式的消息。由于没有安装法语文化文件，它默认为windows默认(已安装?)语言。

英文异常消息

try
{
    ......
}
catch (Exception ex)
{
      throw new UserFriendlyException(L("ExceptionmessagesinEnglish"));
}

然后进入本地化文件夹，把它放在projectName.xml中，然后添加

<text name="ExceptionmessagesinEnglish">Exception Message in English</text>