CODEWITHSUNDEEP
c#stringconsolechar
ByoTic
ByoTic

Reputation: 333

Problems with the consolekeys string C#

I have a question about this code, which is simply supposed to write what I'm typing.

ConsoleKeyInfo a = Console.ReadKey();
if (a.Key == ConsoleKey.Spacebar)
{
     Console.Write(" ");
}
else if (a.Key == ConsoleKey.Enter) 
{
     Console.WriteLine("");
}
else
{
     string b = a.Key.ToString();
     Console.Write(b);
}

If I'm clicking on d for example it prints: dD

but if I check b.Length it equals 1. and if I try to print b[0] it is still printing dD. How is that possible? And how can I fix it?

Upvotes: 0

Views: 155

Answers (2)

Eric Scherrer
Eric Scherrer

Reputation: 3388

It's not printing dD, it is printing D which is the value of a.Key.ToString(). It is putting it immediately after d so in the console it looks like dD.

Upvotes: 0

JaredPar
JaredPar

Reputation: 754725

The ReadKey method both reads a key and displays it to the user. Hence when you hit "d" it displays "d", returns a ConsoleKeyInfo value and then your code displays "D". This results in the "dD" display.

To stop this pass true to ReadKey to prevent the display

ConsoleInfo a = Console.ReadKey(true);

Upvotes: 3

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