How Can I Update the Current Line in a C# Windows Console Application?

Update current row in C# Windows console application

When using a Windows console application with C#, sometimes you may need to update the currently displayed row without creating a new row. This is useful for a variety of applications, such as displaying progress percentages or creating interactive command prompts.

To achieve this effect, you can use the "r" special character, which instructs the cursor to move to the beginning of the current line. Just print an "r" followed by the updated text, overwriting the existing line.

Here is a sample code snippet demonstrating this technique:

for (int i = 0; i < 100; i++)
{
    Console.Write("\r{0}%", i);
    Thread.Sleep(100);
}

In this example, as the loop progresses, it will repeatedly print the current percentage value, preceded by an "r", effectively updating the same line with the new progress. The space after the percentage value ensures that any previously displayed content is erased.

It is important to note that for this purpose you should use the Write() method instead of the WriteLine() method, as the latter will add a newline character to the end of the line, which is not the purpose in this case.

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