Why doesn't Console.Writeline, Console.Write work in Visual Studio Express?

Question

I just open a console application and I type

Console.WriteLine("Test");

But the output window doesn't show this. I go to the output window with Ctrl + W, O.

But nothing shows up when I run my program. Am I nuts or is this not supported in Visual Studio 2010 Express?

Answer 1

Console.WriteLine writes your output to the console window opened by your application (think black window with white text that appears when you open the Command Prompt.) Try System.Diagnostics.Debug.WriteLine instead.

Answer 2

No satisfactory answers were provided.

System.Diagnostics.Debug.WriteLine() will write messages to the Output:debug window, but so much crap is constantly dumped into that window by every process under the sun, it is like finding a needle in a haystack to find your messages.

Console.WriteLine() does not write to any window in Visual Studio. I guess it will only write to the application console if your application creates a console in the first place, i.e. if it is a console application.

Answer 3

Go to properties in you own project in the Solution Explorer window and choose application type and look for Output Type.

Change its value to Console Application.

This will make console screen besides your form. If you close the console screen, your form will be closed too.

Answer 4

Perhaps the console is clearing. Try:

Console.WriteLine("Test");
Console.ReadLine();

And it will hopefully stay there until you press enter.

Answer 5

Or you can debug by CTRL+F5 this will open ConsoleWindow waits after last line executed untill you press key.

Answer 6

It's more than likely because you've used Console in the namespace. For example like this:

namespace XYZApplication.Console
{
    class Program
    {
        static void Main(string[] args)
       {
            //Some code;             
       }
    }
}

Try removing it from the namespace or use the full namespace instead i.e.

   System.Console.Writeline("abc");

Answer 7

The output window isn't the console. Try the methods in System.Diagnostics.Debug

Answer 8

Try Ctrl + F5. It will hold your screen until you press any key.

Answer 9

In a Windows Forms application, both methods,

System.Diagnostics.Debug.WriteLine("my string")

and

System.Console.WriteLine("my string")

write to the output window.

In an ASP.NET Core application, only System.Diagnostics.Debug.WriteLine("my string") writes to the output window.

Answer 10

I run into a similar problem while running a unit test. Console.WriteLine() did not write anything into the Visual Studio Output Window.

Using System.Diagnostics.Debug.WriteLine() solved the problem.

Answer 11

None of the answers here worked for me!! Most of these people here are stuck in Windows Desktop Application Consoleland. If you are a web developer using ASP.NET in Visual Studio and do not see any console or debug text, here is how to fix that:

1. Paste the following two tests into your code so it runs both lines. These are tests for the output window:

   System.Console.WriteLine($"hello console!");

   System.Diagnostics.Debug.WriteLine($"hello debugger!");

2. In Visual Studio choose VIEW > OUTPUT. You will see the results above in this output window after changing two settings below.

3. When NOT DEBUGGING, in the OUTPUT window at the top under "Show Output From" choose: "YourProjectName - ASP.NET CORE Web Server". Run your code. You should see the "Console" text above.

4. When DEBUGGING, in the OUTPUT window at the top under "Show Output From" choose: "Debugger". Run your code in debug mode. You should see the "Debug" text above.

Answer 12

Right click on the project in Solution Explorer and click "Clean".

Now run - press F5.

Make sure the code is as below:

Console.WriteLine("TEST");
Console.ReadLine();

Answer 13

If you use Ctrl-F5 (start without debugging) it will leave the console window open with a message "Press any key to continue". That's the easiest way to keep the console window from closing so you can see the console output.

Answer 14

Go to the Debug menu and select Options and uncheck "Redirect all Output Window text to Immediate Window"