C#-如何在调用异常时获取类名和行号 [英] C# - How to get Class Name and Line Number when an Exception is called

问题描述

我需要两种方法，一种用于从调用异常的位置获取Class，另一种用于获取调用异常的行号.

I need two methods, one for getting the Class from where the exception was called, and another one which gets the line number where an exception was called.

到目前为止，我已经有了这段代码，该代码将类名和行号结合在一起(例如:DatabaseHandler.cs:line 70):

So far I have this code, which gets me the Class Name and Line Number together (example: DatabaseHandler.cs:line 70):

    private string GetClassAndLine()
    {
        string tempName = e.GetBaseException().ToString();
        int tempPosition = 0;
        int length = tempName.Length;
        for (int i = 0; i < length; i++)
        {
            if (tempName.ElementAt(i).Equals('\\'))
            {
                tempPosition = i + 1;
            }
        }
        return tempName.Substring(tempPosition, length - tempPosition);
    }

因此，如果您有任何想法我将如何单独获得它们，将大有帮助.然后将它们传递到Oracle中，以存储发生的任何异常.

So if you have any ideas how I could get them individually, it would be of great help. These are then passed into Oracle to store any exceptions which occur.

更新2:

我正在按照某些建议测试此代码:

I am currently testing this code, as some suggested:

        private string GetClassName()
    {
        System.Diagnostics.StackTrace trace = new System.Diagnostics.StackTrace(e, true); 
        return trace.GetFrame(0).GetMethod().ReflectedType.FullName;
    }

    private int GetLineNumber()
    {
        System.Diagnostics.StackTrace trace = new System.Diagnostics.StackTrace(e, true); 
        return trace.GetFrame(0).GetFileLineNumber();
    }

这是在特定数据库异常时返回的内容.没有行号或类名被触发的地方.我该怎么办?

This is what was returned at a particular Database Exception. No Line Number or Class Name where it was triggered. How can I get that?

    Error was found at Class: Oracle.DataAccess.Client.OracleException.     
    Line Number: 0

我想要的例如:"Class:Logging.cs，第57行"

What I want is for Example: "Class: Logging.cs, Line: 57"

谢谢，瑞安

推荐答案

您可以这样做

try
{
    // 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);

    Console.WriteLine(trace.GetFrame(0).GetMethod().ReflectedType.FullName);
    Console.WriteLine("Line: " + trace.GetFrame(0).GetFileLineNumber());
    Console.WriteLine("Column: " + trace.GetFrame(0).GetFileColumnNumber());
}

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