How can I get the full traceback of an error, including file name, fun

Ayush A

How can I get the full traceback of an error, including file name, function name and line number without raising it? except Exception as e:print(e) will only print the text of the error

3 Replies

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Rajanikant Hawaldar5y ago
you can try using logging system for getting execution time, line no, file name, message etc
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Rijwan Ansari5y ago
Hi,
Try this way
try
{
    // invoke code above
}
catch(Exception ex)
{
    Error.PrintError(FlattenException(ex));
}
Get Exception Details
public static string FlattenException(Exception exception)
    {
        var stringBuilder = new StringBuilder();

        while (exception != null)
        {
            stringBuilder.AppendLine(exception.Message);
            stringBuilder.AppendLine(exception.StackTrace);

            exception = exception.InnerException;
        }

        return stringBuilder.ToString();
    }
Log Error to Log File
public static bool PrintError(string msg)
       {
           try
           {
               string fullPath = System.AppDomain.CurrentDomain.BaseDirectory.ToString();
               string date = DateTime.Now.Year + "-" + DateTime.Now.Month + "-" + DateTime.Now.Day;
               fullPath = fullPath + "Logs";
               if (!Directory.Exists(fullPath))
               {
                   Directory.CreateDirectory(fullPath);
               }

               string filePath = fullPath + "\\" + date + "_ErrorLog.txt";
               if (!File.Exists(filePath))
               {
                   TextWriter sw = new StreamWriter(filePath);
                   sw.WriteLine("Error Message :-" + msg);

                   sw.Close();
               }
               else
               {
                   string oldLine = File.ReadAllText(filePath);
                   TextWriter tw = new StreamWriter(filePath);

                   tw.WriteLine(oldLine);
                   tw.WriteLine(tw.NewLine);
                   tw.WriteLine("Error Message :-" + msg);
                   tw.Close();
               }
           }
           catch (Exception)
           {
               return false;
           }
           return true;
       }
This way, you can capture exception log in file based on date.
+1
Kiran Mohanty5y ago
Hi,
Please try below code.
static void Main(string[] args)
{
    try
    {
        //your logic
    }
    catch (Exception e)
    {
//will fetch method name that caused exception
        GetCallForExceptionThisMethod(MethodBase.GetCurrentMethod(), e) ;
    }
}

private static string GetCallForExceptionThisMethod(MethodBase methodBase, Exception e)
{
    StackTrace trace = new StackTrace(e);
    StackFrame previousFrame = null;

    foreach (StackFrame frame in trace.GetFrames())
    {
        if (frame.GetMethod() == methodBase)
        {
            break;
        }

        previousFrame = frame;
    }

    return previousFrame != null ? previousFrame.GetMethod().Name : null;
}
0