如何删除'duplicate'异常堆栈跟踪中的方法名

我想只显示完整异常和堆栈跟踪的一部分。我目前正在异常上调用ex.ToString()，但我注意到有"重复"的stacktrace条目。

我能想到的唯一方法就是解析字符串中重复的字符串，忽略行#。我想我必须找出一个正则表达式模式。

。:在堆栈跟踪中有"ProcessTeleformFiles.ProcessExpTableRecord(…)"列了两次，但用不同的行#。

我在编写的几乎每个c# 4.0方法中都使用了try catch块。

try
catch (Exception)
{
  throw;
}

然后当我想引发自定义错误时我执行这个

try 
catch (Exception ex)
{
  throw new Exception("my custom message", ex);
}

然后在代码的根级，我基本上显示和/或记录错误，如下所示:

try 
catch (Exception ex)
{
  MessageBox.Show("Exception found: " + ex.ToString();
}

但是堆栈跟踪可以是这样的:

Error was logged: Error in ProcessExp() method.
Exception found: System.Exception: Error found in Database: C:'MyDatabase.mdb
 ---> System.Exception: Error found in Table: MyTable
 ---> System.Exception: Error found in TableID: 1
 ---> System.Data.OleDb.OleDbException: Could not find output table 'testtable'.
   at System.Data.OleDb.OleDbCommand.ExecuteCommandTextErrorHandling(OleDbHResult hr)
   at System.Data.OleDb.OleDbCommand.ExecuteCommandTextForSingleResult(tagDBPARAMS dbParams, Object& executeResult)
   at System.Data.OleDb.OleDbCommand.ExecuteCommandText(Object& executeResult)
   at System.Data.OleDb.OleDbCommand.ExecuteCommand(CommandBehavior behavior, Object& executeResult)
   at System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method)
   at System.Data.OleDb.OleDbCommand.ExecuteScalar()
   at MiscOleDbFns.Querys.RunExecuteScaler(OleDbConnection Conn, String QueryString, Object[] ParamValues) in C:'Document Files'DotNet common libraries'src 4.0'misclibrary_src'source'MiscOleDbFns.cs:line 247
   at MiscOleDbFns.Querys.RunExecuteScalerAndGetAutoNumFromQuery(OleDbConnection Conn, String QueryString, Object[] ParamValues) in C:'Document Files'DotNet common libraries'src 4.0'misclibrary_src'source'MiscOleDbFns.cs:line 271
   at ProcessTeleformFiles.InsertExpSummaryFilesRec(OleDbConnection Conn, Boolean LogFile, RcdExpSummaryFiles Rcd) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 622
   at ProcessTeleformFiles.FindFileInList(OleDbConnection conSystemDB, String sCopyToDBFolderExp, Boolean isLogFile, Boolean isCopyFile, Boolean isDeleteFile, RcdExpSummaryFiles recExpSummaryFiles, Dictionary`2 myList) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 1216
   at ProcessTeleformFiles.ProcessExpTableRecordSusFiles(OleDbConnection conSystemDB, String sCopyToDBFolderExp, OleDbDataReader Read, RcdSchemaFlds recSchemaFlds, RcdExpSummary recExpSummary, String& tct) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 1257
   at ProcessTeleformFiles.ProcessExpTableRecord(OleDbConnection conSystemDB, String sCopyToDBFolderExp, OleDbDataReader Read, RcdSchemaFlds recSchemaFlds, RcdExpSummary recExpSummary) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 965
   --- End of inner exception stack trace ---
   at ProcessTeleformFiles.ProcessExpTableRecord(OleDbConnection conSystemDB, String sCopyToDBFolderExp, OleDbDataReader Read, RcdSchemaFlds recSchemaFlds, RcdExpSummary recExpSummary) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 982
   at ProcessTeleformFiles.ProcessExpDatabaseTable(OleDbConnection conSystemDB, OleDbConnection ConnExpDb, String sCopyToDBFolderExp, String mdbPath, String sTable, BackgroundWorker worker, DoWorkEventArgs workerEvents) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 242
   --- End of inner exception stack trace ---
   at ProcessTeleformFiles.ProcessExpDatabaseTable(OleDbConnection conSystemDB, OleDbConnection ConnExpDb, String sCopyToDBFolderExp, String mdbPath, String sTable, BackgroundWorker worker, DoWorkEventArgs workerEvents) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 250
   at ProcessTeleformFiles.ProcessExpDatabase(OleDbConnection conSystemDB, String mdbPath, BackgroundWorker worker, DoWorkEventArgs workerEvents) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 161
   --- End of inner exception stack trace ---
   at ProcessTeleformFiles.ProcessExpDatabase(OleDbConnection conSystemDB, String mdbPath, BackgroundWorker worker, DoWorkEventArgs workerEvents) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 174
   at ProcessTeleformFiles.ProcessExp(BackgroundWorker worker, DoWorkEventArgs workerEvents) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 74

然而，我希望错误消息没有任何重复的消息;更像这样:

Error was logged: Error in ProcessExp() method.
Exception found: System.Exception: Error found in Database: C:'MyDatabase.mdb
 ---> System.Exception: Error found in Table: MyTable
 ---> System.Exception: Error found in TableID: 1
 ---> System.Data.OleDb.OleDbException: Could not find output table 'testtable'.
at MiscOleDbFns.Querys.RunExecuteScaler(OleDbConnection Conn, String QueryString, Object[] ParamValues) in C:'Document Files'DotNet common libraries'src 4.0'misclibrary_src'source'MiscOleDbFns.cs:line 247
   at MiscOleDbFns.Querys.RunExecuteScalerAndGetAutoNumFromQuery(OleDbConnection Conn, String QueryString, Object[] ParamValues) in C:'Document Files'DotNet common libraries'src 4.0'misclibrary_src'source'MiscOleDbFns.cs:line 271
   at ProcessTeleformFiles.InsertExpSummaryFilesRec(OleDbConnection Conn, Boolean LogFile, RcdExpSummaryFiles Rcd) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 622
   at ProcessTeleformFiles.FindFileInList(OleDbConnection conSystemDB, String sCopyToDBFolderExp, Boolean isLogFile, Boolean isCopyFile, Boolean isDeleteFile, RcdExpSummaryFiles recExpSummaryFiles, Dictionary`2 myList) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 1216
   at ProcessTeleformFiles.ProcessExpTableRecordSusFiles(OleDbConnection conSystemDB, String sCopyToDBFolderExp, OleDbDataReader Read, RcdSchemaFlds recSchemaFlds, RcdExpSummary recExpSummary, String& tct) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 1257
   at ProcessTeleformFiles.ProcessExpTableRecord(OleDbConnection conSystemDB, String sCopyToDBFolderExp, OleDbDataReader Read, RcdSchemaFlds recSchemaFlds, RcdExpSummary recExpSummary) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 965
at ProcessTeleformFiles.ProcessExpDatabaseTable(OleDbConnection conSystemDB, OleDbConnection ConnExpDb, String sCopyToDBFolderExp, String mdbPath, String sTable, BackgroundWorker worker, DoWorkEventArgs workerEvents) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 242
at ProcessTeleformFiles.ProcessExpDatabase(OleDbConnection conSystemDB, String mdbPath, BackgroundWorker worker, DoWorkEventArgs workerEvents) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 161
at ProcessTeleformFiles.ProcessExp(BackgroundWorker worker, DoWorkEventArgs workerEvents) in C:'Document Files'Projects and notes'VS 2010'Projects'OrganizeTeleformFiles'source'OrganizeTeleformFiles'ProcessFiles.cs:line 74

更新:回到以前，我确实删除了代码中所有的try捕获。我现在修改堆栈跟踪的唯一情况是在一个地方，我向用户提供了一个更友好的简化输出。在内部，我总是记录整个堆栈。谢谢大家!