How Can I Clear Only a Specific Line in the Console Instead of the Entire Console?

Expanding Console.Clear() Capabilities: Clearing Lines Instead of Whole Consoles

In a recent pursuit to create a question-and-answer program, the author stumbled upon the utility of Console.Clear() for removing content from the screen. However, a question arose: could Console.Clear() be tailored to only erase a specific line?

Delving into the Customization of Console.Clear()

The limitation of Console.Clear() to only erase the entire console can be overcome by employing the Console.SetCursorPosition function. This function allows you to navigate to a specific line on the screen. By coupling this with the following code snippet, line clearing becomes feasible:

public static void ClearCurrentConsoleLine()<br>{<pre class="brush:php;toolbar:false">int currentLineCursor = Console.CursorTop;
Console.SetCursorPosition(0, Console.CursorTop);
Console.Write(new string(' ', Console.WindowWidth)); 
Console.SetCursorPosition(0, currentLineCursor);

}

This function accomplishes the following:

1. Stores the current cursor position (line number).
2. Moves the cursor to the beginning of the current line.
3. Writes a blank string spanning the entire width of the console.
4. Restores the cursor to its original position.

Example Implementation

Let's delve into an example that illustrates the functionality of Console.Clear() line clearing:

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

In this example, the "Test" string is written to the console, followed by the execution of the line-clearing code. As a result, the "Test" string is erased, leaving the console ready for additional input.

Additional Information

For further exploration of this topic, consider referencing the following resource:

• Console.SetCursorPosition Method: https://docs.microsoft.com/en-us/dotnet/api/system.console.setcursorposition?view=netcore-3.1

The above is the detailed content of How Can I Clear Only a Specific Line in the Console Instead of the Entire Console?. For more information, please follow other related articles on the PHP Chinese website!