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Getting error line nuber in ASP.Net - C#

Posted on 2009-02-19
Medium Priority
Last Modified: 2013-12-17

How do I get the exact line number that has resulted in an exception?
Question by:vj_mi
  • 2
LVL 39

Expert Comment

ID: 23680343
You don't. You can use the .Stacktrace to find it, and the .Source to know the right file. There are tools that fill this gap, though.
LVL 39

Accepted Solution

abel earned 1500 total points
ID: 23680360
Sorry, my mistake, I answered too quickly. Here's a sample code in C# that does what you want:

    // Some code that can cause an exception.
    throw new Exception("An error has happened");
catch (Exception ex)
    System.Diagnostics.StackTrace trace = new System.Diagnostics.StackTrace(ex, true);
    MessageBox.Show("Line: " + trace.GetFrame(0).GetFileLineNumber());
    MessageBox.Show("Column: " + trace.GetFrame(0).GetFileColumnNumber());

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