better end on keypress

Question

I am writing a console app and found this method to end a loop on a keypress:

while (!Console.KeyAvailable){//do stuff}

It works, but it echos the key that was pressed back to the prompt. Is there a better method?

edit:

To clarify more, the loop runs and if hit the letter j the loop ends and the program exits. However, I get the following output at the prompt:

C:\>j

Look at https://stackoverflow.com/questions/23433980/c-sharp-console-hide-the-input-from-console-window-while-typing — jdphenix, Nov 16 '17 at 04:32
@jdphenix not what im looking for, i edited my question to clarify — Keltari, Nov 16 '17 at 05:01
Can you please elaborate question? Do you want to break loop after key pressed, but key should not displayed on screen? Do you want solution for this? — Prasad Telkikar, Nov 16 '17 at 06:05
@Prasadtelkikar yes. i dont want the keypress to show after the program exits — Keltari, Nov 16 '17 at 06:27
You need to add Console.ReadKey(true) after the loop to slurp the typed character. — Hans Passant, Nov 16 '17 at 08:32
@HansPassant that was it. if you make it an answer, ill select it. — Keltari, Nov 17 '17 at 03:18

score 0 · Answer 1 · edited Dec 17 '19 at 07:07

If you want to exit from a loop after a particular key is pressed, then instead of Console.KeyAvailable you can use the Console.ReadKey() function and check the return type of this function as an exit condition.

Here is the implementation.

while (true) {
    var keyPressed = Console.ReadKey(true);
    if (keyPressed.KeyChar == 'j') break;
    //do something
    Console.WriteLine("Key pressed: " + keyPressed.KeyChar);
}

For more details: C# Console - hide the input from console window while typing

better end on keypress

1 Answers1