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The StackTrace Property

The System.Exception.StackTrace property allows you to identify the series of calls that resulted in

the exception. Be aware that you never set the value of StackTrace as it is established automatically

at the time the exception is created. To illustrate, assume you have once again updated your catch

logic:

catch(Exception e)

{

...

Console.WriteLine("Stack: {0}", e.StackTrace);

}

If you were to run the program, you would find the following stack trace is printed to the con-

sole (your line numbers and file paths may differ, of course):

Stack: at SimpleException.Car.Accelerate(Int32 delta)

in c:\MyApps\SimpleException\car.cs:line 65 at SimpleException.Program.Main()

in c:\MyApps\SimpleException\Program.cs:line 21

The string returned from StackTrace documents the sequence of calls that resulted in the

throwing of this exception. Notice how the bottommost line number of this string identifies the first

call in the sequence, while the topmost line number identifies the exact location of the offending

member. Clearly, this information can be quite helpful during the debugging or logging of a given

application, as you are able to “follow the flow” of the error’s origin.