Error Line Number .net
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up C# - get line number which threw exception up vote 100 down vote favorite 33 In a catch block, how can I get the line number which threw an exception? c# exception share|improve this question edited Dec 4 '15 at 3:55 Mogsdad 24.5k955123 asked Jul 25 '10 at 11:25 MBZ 5,6351867134 at runtime there is no source code. what this line no will be used for? at debug time, the IDE clearly shows line which throws exception. –ankitjaininfo Jul 25 '10 at 11:28 possible duplicate of Exception handling -- display line number where error occurred? –Fredrik Mörk Jul 25 '10 at 11:29 possible duplicate of Show line number in exception handling –Thom Smith Oct 25 '12 at 14:29 add a comment| 10 Answers 10 active oldest votes up vote 136 down vote accepted If you need the line number for more than just the formatted stack trace you get from Exception.StackTrace, you can use the StackTrace class: try { throw new Exception(); } catch (Exception ex) { // Get stack trace for the exception with source file information var st = new StackTrace(ex, true); // Get the top stack frame var frame = st.GetFrame(0); // Get the line number from the stack frame var line = frame.GetFileLineNumber(); } Note that this will only work if there is a pdb file available for the assembly. share|improve this answer answered Jul 25 '10 at 11:52 Quartermeister 32.7k67379 1 ?(New StackTrace(ex, True)).GetFrame(0).GetFileLineNumber() for VB single line from the immediate window. –Jonathan Oct 18 '12 at 9:55 14 C# one liner: int line = (new StackTrace(ex, true)).GetFrame(0).GetFileLineNumber(); –gunwin Aug 23 '13 at 12:15 4 This always returns 0 for me. Is this caused by not having a pdb file? Wha
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to use Stacktrace to return Error Line Number in vb.net up vote 5 down vote favorite 4 I am trying to create some sort of http://stackoverflow.com/questions/3328990/c-sharp-get-line-number-which-threw-exception error catching method that will return the error line number. We have an abort email that is sent out when a process aborts that gives us the err.number and err.description but I would like to know where is actually errors out. I know you can do the following: 1: code here 2: code here 3: code here etc. and use ERL to get the number but it would be tedious to type each line out like that. http://stackoverflow.com/questions/13460656/how-to-use-stacktrace-to-return-error-line-number-in-vb-net Is there either a way to automatically do this or would it be easier to use Stacktrace? If Stacktrace is better could you please show me an example? vb.net error-handling stack-trace erl share|improve this question asked Nov 19 '12 at 19:23 user1836775 28113 1 ERL is the old way of doing things from VB6. Is there a reason not to use TRY/Catch? The exception object has a nice stack trace and includes the line number. –PatFromCanada Nov 19 '12 at 19:31 add a comment| 4 Answers 4 active oldest votes up vote 6 down vote accepted Generating line numbers in exception stack traces is a built-in feature for the CLR. You do however have to provide the information it needs to map a code address to a line number. Switch to the Release configuration of your project. Project + Properties, Compile tab, Advanced Compile Options. Change the "Generate debug info" setting from pdb-only to Full. Deploy the .pdb files along with your program. Beware that the line number you get is always an estimate so do not blindly trust what you see. The mapping is imperfect due to the jitter optimizer inlining methods and otherwise moving code around to make the program run faster. share|improve this answer answered Nov 19 '12 at 19:36 Hans Passant 654k819601604 add a comment| up vote 12 down vote I have
here for a quick overview of the site Help Center Detailed answers to any questions you might have http://stackoverflow.com/questions/2723607/exception-handling-display-line-number-where-error-occurred Meta Discuss the workings and policies of this site About Us http://stackoverflow.com/questions/9911783/no-line-numbers-in-asp-net-server-errors Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just error line like you, helping each other. Join them; it only takes a minute: Sign up Exception handling — display line number where error occurred? [duplicate] up vote 11 down vote favorite 3 Possible Duplicate: Show line number in exception handling Can someone please tell me how to get the line number of the code where the error error line number occurred and display it to the console? Other information like the file name or method name would be very handy. c# share|improve this question edited Apr 27 '10 at 18:46 John Saunders 138k20175321 asked Apr 27 '10 at 17:48 CSharp Noob 136129 marked as duplicate by casperOne Oct 26 '12 at 12:12 This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question. duplicate stackoverflow.com/questions/8338495/… –Michael Riva Sep 2 '14 at 12:53 add a comment| 5 Answers 5 active oldest votes up vote 10 down vote accepted You can print the entire stack trace by using a try/catch around the code that can throw and then using Console.WriteLine to show the exception object: try { new Program().Run(); } catch (Exception exception) // Prefer to catch a more specific execption. { Console.WriteLine(exception); } Output: System.IndexOutOfRangeException: Index was outside the bounds of the array. at Program.Run() in C:\Console Application1\Program.cs:line 37 at Program
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up No line numbers in ASP.NET server errors up vote 2 down vote favorite 2 I'm using Visual Studio 2010 and C# ASP.NET. When I run my project using F5 key, it launches the ASP.NET Development Server, and that's the server I'm using for my work, not IIS. Problem is, when I get a "Server error in / application" unhandled exception error, the error page has no line numbers, nor source file name. Just an error description and stack trace. For example: Server Error in '/' Application. DataField must be specified. [or whatever error message] Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: DataField must be specified. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [etc] I am compiling in Debug mode. My PDB is being generated in my project's BIN directory. In my project properties, under Web, NTLM authentication is turned off. In my web.config I have the following: