Question

While working on a question/answer program for school, it occurred to me that I can use Console.Clear() to wipe out everything on the screen. I wonder if I can use Console.Readline(valueOne), then output only the answer without the question. If I only asked one question, the Console.Clear works.

I have several questions with values not references, to erase if possible. I want to leave out the questions and only display several answers. I think if I store the answers, I could use Console.Clear() then just Console.WriteLine() with three variables. I could do something like this:

Console.WriteLine("Value 1 is: {0:c}" + "Value 2 is: {1:c}" + "Value 3 is: {2:c}, valueOne, valueTwo, valueThree).

The problem is easier with references because the values are stored and retrieved. If I simply use methods to pass by value and output the value, main() will not have a reference to those values to clear and output again. That’s why I wonder if I can just ask a question, then erase the line and output only the answer (or answers).

I am just trying to understand the possibilities and not trying to setup a program. I like to know the abilities of outputting a value from reference and by value without extra output questions.

Answer 1

Description

You can use the Console.SetCursorPosition function to go to a specific line number. Then you can use this function to clear the line:

public static void ClearCurrentConsoleLine()
{
    int currentLineCursor = Console.CursorTop;
    Console.SetCursorPosition(0, Console.CursorTop);
    Console.Write(new string(' ', Console.WindowWidth)); 
    Console.SetCursorPosition(0, currentLineCursor);
}

Sample

Console.WriteLine("Test");
Console.SetCursorPosition(0, Console.CursorTop - 1);
ClearCurrentConsoleLine();

More Information

• Console.SetCursorPosition Method