In this post, python has traceback library to get some detailed error information (line number, file name ...).
Does C# have similar functions to know what file/line number that generates the exception?
ADDED
I came up with the following code based on the answers.
using System;
// https://stackoverflow.com/questions/4474259/c-exception-handling-with-a-string-given-to-a-constructor
class WeekdayException : Exception {
public WeekdayException(String wday) : base("Illegal weekday: " + wday) {}
}
class TryCatchFinally
{
public static void Main()
{
try
{
throw new WeekdayException("thrown by try");
}
catch(WeekdayException weekdayException) {
Console.WriteLine(weekdayException.Message);
Console.WriteLine(weekdayException.StackTrace);
}
}
}
And it gives me this message:
Illegal weekday: thrown by try
at TryCatchFinally.Main () [0x00000] in &开发者_运维问答lt;filename unknown>:0
When you catch an exception you can view its stack trace, which should give similar results:
catch(Exception e)
{
Console.WriteLine(e.StackTrace);
}
If debug data can be loaded (if the .pdb file is in the same directory as the executable/you build in debug mode) this will include file names line numbers. If not it will only include method names.
When an exception gets thrown, check out the stack trace - it will give you the same results.
All classes that inherit from Exception
have a StackTrace
property. It's not quite the same as the Python traceback
library because of the nature of how C#/.NET is run (like it won't have an equivalent to tb_lineno
). All it is is the string representation of the stack trace.
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