Why is there Console.Error() in C# but no Console.Warning?

Question

In C#, if we want to output an error to the console, we can simply write:

Console.Error.Write("Error!");

But when I try to write a warning to the console, I found that there isn't any:

Console.Warning.Write("Warning!");

Instead, I need to write:

WarningException myEx = new WarningException("This is a warning");
Console.Write(myEx.ToString());

Why is it designed this way?

Answer 1

Because Console is adapting to a much older idiom - where every process has 3 streams associated with it at startup - one standard input stream, one standard output stream, and one standard error stream.

(The standard names here are Console.In, Console.Out and Console.Error are their names in the .NET world, not stdin, stdout & stderr as in C.)

This is no standard warning stream.

Be aware that if you use output redirection when running a console application >file1.txt will redirect the standard output to file1.txt but an error output will continue to be shown on the console. (You use 2>something to redirect the standard error output or 2>&1 to redirect it to the same place that standard output is going to)