如何在C＃中添加（简单）跟踪？ [英] How can I add (simple) tracing in C#?

问题描述

我想对正在编写的C＃应用​​程序进行一些跟踪。可悲的是，我永远无法真正记住它是如何工作的，并希望时不时地检查一下具有参考品质的教程。它应包括：

I want to introduce some tracing to a C# application I am writing. Sadly, I can never really remember how it works and would like a tutorial with reference qualities to check up on every now and then. It should include:

• App.config / Web.config东西，用于注册TraceListeners添加


• 如何设置它

您知道我们应该链接的über教程吗？

Do you know the über tutorial that we should link to?

Glenn Slaven向我指出了正确的方向。将此添加到< configuration /> 中的App.config / Web.config中：

Glenn Slaven pointed me in the right direction. Add this to your App.config/Web.config inside <configuration/>:

<system.diagnostics>
    <trace autoflush="true">
      <listeners>
        <add type="System.Diagnostics.TextWriterTraceListener" name="TextWriter"
             initializeData="trace.log" />
      </listeners>
    </trace>
</system.diagnostics>

这将添加 TextWriterTraceListener 来捕获发送到的所有内容与 Trace.WriteLine 等。

This will add a TextWriterTraceListener that will catch everything you send to with Trace.WriteLine, etc.

@DanEsparza指出您应该使用 Trace.TraceInformation ， Trace.TraceWarning 和 Trace.TraceError 而不是 Trace.WriteLine ，因为它们允许您以与 string.Format 相同的方式来格式化消息。

@DanEsparza pointed out that you should use Trace.TraceInformation, Trace.TraceWarning and Trace.TraceError instead of Trace.WriteLine, as they allow you to format messages the same way as string.Format.

提示：如果您不添加任何侦听器，则仍可以使用Sysinternals程序 DebugView （ Dbgview.exe ）：

Tip: If you don't add any listeners, then you can still see the trace output with the Sysinternals program DebugView (Dbgview.exe):

推荐答案

我关注了大约五个不同的答案以及以前答案中的所有博客文章，但仍然有问题。我试图将监听器添加到使用 TraceSource.TraceEvent（TraceEventType，Int32，String）方法跟踪的某些现有代码中，其中 TraceSource 对象用一个字符串初始化，使其成为命名源。

I followed around five different answers as well as all the blog posts in the previous answers and still had problems. I was trying to add a listener to some existing code that was tracing using the TraceSource.TraceEvent(TraceEventType, Int32, String) method where the TraceSource object was initialised with a string making it a 'named source'.

对我来说，问题不是创建源和switch元素的有效组合以该源为目标。这是一个示例，该示例将记录到名为 tracelog.txt 的文件中。对于以下代码：

For me the issue was not creating a valid combination of source and switch elements to target this source. Here is an example that will log to a file called tracelog.txt. For the following code:

TraceSource source = new TraceSource("sourceName");
source.TraceEvent(TraceEventType.Verbose, 1, "Trace message");

我成功使用以下诊断配置成功登录：

I successfully managed to log with the following diagnostics configuration:

<system.diagnostics>
    <sources>
        <source name="sourceName" switchName="switchName">
            <listeners>
                <add
                    name="textWriterTraceListener"
                    type="System.Diagnostics.TextWriterTraceListener"
                    initializeData="tracelog.txt" />
            </listeners>
        </source>
    </sources>

    <switches>
        <add name="switchName" value="Verbose" />
    </switches>
</system.diagnostics>

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