C# 如何获取错误所在行数

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三种思路，一种是利用error.StackTrace，第二种是try-catch找到错误行数, 第三种是: System.Diagnostics.Debug.WriteLine() + DebugView工具

一、error.StackTrace代码

ex.StackTrace.Substring(ex.StackTrace.IndexOf("行号"), ex.StackTrace.Length - ex.StackTrace.IndexOf("行号"))

二、try-catch代码

try{   ////////////////   代码断  ////////////////}catch(Exception ex){    MessageBox.Show(ex.StackTrace);}

三. System.Diagnostics.Debug.WriteLine() + DebugView工具

1.引用
using System.Diagnostics;

2.显示在DebugView的信息
Debug.WriteLine(DateTime.Now.ToString("HH-mm-ss")+" "+DateTime.Now.Millisecond.ToString() + " cti_message", "my");

3.在Dbgview.exe 过滤其它信息
Edit -> Filter/Hightlight... -> include: 中输入 *my
点击OK后,便可用DebugView调试C#程序了。

MSDN StackTrace示例

下面的代码示例引发一个 Exception，然后捕捉该异常，并使用 StackTrace 属性显示堆栈跟踪。

// Example for the Exception.HelpLink, Exception.Source,// Exception.StackTrace, and Exception.TargetSite properties.using System;namespace NDP_UE_CS{    // Derive an exception; the constructor sets the HelpLink and     // Source properties.    class LogTableOverflowException : Exception    {        const string overflowMessage = "The log table has overflowed.";        public LogTableOverflowException(             string auxMessage, Exception inner ) :                base( String.Format( "{0} - {1}",                     overflowMessage, auxMessage ), inner )        {            this.HelpLink = "http://msdn.microsoft.com";            this.Source = "Exception_Class_Samples";        }    }    class LogTable    {        public LogTable( int numElements )        {            logArea = new string[ numElements ];            elemInUse = 0;        }        protected string[ ] logArea;        protected int       elemInUse;        // The AddRecord method throws a derived exception if         // the array bounds exception is caught.        public    int       AddRecord( string newRecord )        {            try            {                logArea[ elemInUse ] = newRecord;                return elemInUse++;            }            catch( Exception e )            {                throw new LogTableOverflowException(                     String.Format( "Record \"{0}\" was not logged.",                         newRecord ), e );            }        }    }    class OverflowDemo     {        // Create a log table and force an overflow.        public static void Main()         {            LogTable log = new LogTable( 4 );            Console.WriteLine(                 "This example of \n   Exception.Message, \n" +                "   Exception.HelpLink, \n   Exception.Source, \n" +                "   Exception.StackTrace, and \n   Exception." +                "TargetSite \ngenerates the following output." );            try            {                for( int count = 1; ; count++ )                {                    log.AddRecord(                         String.Format(                             "Log record number {0}", count ) );                }            }            catch( Exception ex )            {                Console.WriteLine( "\nMessage ---\n{0}", ex.Message );                Console.WriteLine(                     "\nHelpLink ---\n{0}", ex.HelpLink );                Console.WriteLine( "\nSource ---\n{0}", ex.Source );                Console.WriteLine(                     "\nStackTrace ---\n{0}", ex.StackTrace );                Console.WriteLine(                     "\nTargetSite ---\n{0}", ex.TargetSite );            }        }    }}/*This example of   Exception.Message,   Exception.HelpLink,   Exception.Source,   Exception.StackTrace, and   Exception.TargetSitegenerates the following output.Message ---The log table has overflowed. - Record "Log record number 5" was not logged.HelpLink ---http://msdn.microsoft.comSource ---Exception_Class_SamplesStackTrace ---   at NDP_UE_CS.LogTable.AddRecord(String newRecord)   at NDP_UE_CS.OverflowDemo.Main()TargetSite ---Int32 AddRecord(System.String)*/

参考文章:

百度知道:C# 如何获取错误所在行数

http://blog.csdn.net/gaoxiang19820514/article/details/6649907

https://msdn.microsoft.com/zh-cn/library/system.exception.stacktrace(VS.80).aspx

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