CODEWITHSUNDEEP
c#visual-studio
41 72 6c
41 72 6c

Reputation: 1780

How do I show a changing value in a log?

I have an ASP.NET Core application and I do not know what to do next. Note - I use Visual Studio 2019.

I have a progress for a image download. I would like to know if my code works well and outputs the correct value (if you notice something or if there is a better solution you are welcome to inform me). But I don't want to constantly debug all the steps through the code (which would take a lot of time at this point).

So my idea was to keep the progress somewhere (maybe in a console log), so I can watch it all the time.

What did I try?

I've added a simple Console.WriteLine (progress) into my method, but I see no console. Then I tried it with the Command Window and >? progress, but it only outputs the value if the breakpoint is set, which leads to the same problem again.

What would I have to adjust so I can see the progress in a log?

Here is my code:

while(...)
{
    if (ExpectedStreamSize.HasValue && _configSize.HasValue)
    {
        var expected = ExpectedStreamSize + _configSize.Value;
        var progress = _stream.ReadPosition / (float) expected;
        var limitedProgress = progress > 1 ? 1 : progress;

        var epsilon = 0.001;
        if (!_lastReportedProgress.HasValue || _lastReportedProgress.Value + epsilon < limitedProgress)
            _onProgressChanged?.Invoke(limitedProgress);

        _lastReportedProgress = limitedProgress;
        Console.WriteLine(progress);     // I setted my breakpoint in here
    }
}

Upvotes: 1

Views: 101

Answers (2)

Mark Cilia Vincenti
Mark Cilia Vincenti

Reputation: 1614

You could try logging to file. This way you can debug even in release mode or when running the executable outside of Visual Studio.

public void LogToFile(string text)
{
    string path = @"c:\temp\MyTest.txt";

    string appendText = text + Environment.NewLine;
    File.AppendAllText(path, appendText);
}

Upvotes: 1

user11116003
user11116003

Reputation:

While debugging, right click on the variable, choose "add watch". You will see it's value bellow in the watches window.

Upvotes: 0

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