c# - Progress bar in console application

Question

I'm writing a simple c# console app that uploads files to sftp server. However, the amount of files are large. I would like to display either percentage of files uploaded or just the number of files upload already from the total number of files to be upload.

First, I get all the files and the total number of files.

string[] filePath = Directory.GetFiles(path, "*");
totalCount = filePath.Length;

Then I loop through the file and upload them one by one in foreach loop.

foreach(string file in filePath)
{
    string FileName = Path.GetFileName(file);
    //copy the files
    oSftp.Put(LocalDirectory + "/" + FileName, _ftpDirectory + "/" + FileName);
    //Console.WriteLine("Uploading file..." + FileName);
    drawTextProgressBar(0, totalCount);
}

In the foreach loop I have a progress bar which I have issues with. It doesn't display properly.

private static void drawTextProgressBar(int progress, int total)
{
    //draw empty progress bar
    Console.CursorLeft = 0;
    Console.Write("["); //start
    Console.CursorLeft = 32;
    Console.Write("]"); //end
    Console.CursorLeft = 1;
    float onechunk = 30.0f / total;

    //draw filled part
    int position = 1;
    for (int i = 0; i < onechunk * progress; i++)
    {
        Console.BackgroundColor = ConsoleColor.Gray;
        Console.CursorLeft = position++;
        Console.Write(" ");
    }

    //draw unfilled part
    for (int i = position; i <= 31 ; i++)
    {
        Console.BackgroundColor = ConsoleColor.Green;
        Console.CursorLeft = position++;
        Console.Write(" ");
    }

    //draw totals
    Console.CursorLeft = 35;
    Console.BackgroundColor = ConsoleColor.Black;
    Console.Write(progress.ToString() + " of " + total.ToString() + "    "); //blanks at the end remove any excess
}

The output is just [ ] 0 out of 1943

What am I doing wrong here?

EDIT:

I'm trying to display the progress bar while I'm loading and exporting XML files. However, it's going through a loop. After it finishes the first round it goes to the second and so on.

string[] xmlFilePath = Directory.GetFiles(xmlFullpath, "*.xml");
Console.WriteLine("Loading XML files...");
foreach (string file in xmlFilePath)
{
     for (int i = 0; i < xmlFilePath.Length; i++)
     {
          //ExportXml(file, styleSheet);
          drawTextProgressBar(i, xmlCount);
          count++;
     }
 }

It never leaves the for loop...Any suggestions?

Answer 1

I was also looking for a console progress bar. I didn't find one that did what I needed, so I decided to roll my own. Click here for the source code (MIT License).

Features:

• Works with redirected output

  If you redirect the output of a console application (e.g., Program.exe > myfile.txt), most implementations will crash with an exception. That's because Console.CursorLeft and Console.SetCursorPosition() don't support redirected output.

• Implements IProgress<double>

  This allows you to use the progress bar with async operations that report a progress in the range of [0..1].

• Thread-safe

• Fast

  The Console class is notorious for its abysmal performance. Too many calls to it, and your application slows down. This class performs only 8 calls per second, no matter how often you report a progress update.

Use it like this:

Console.Write("Performing some task... ");
using (var progress = new ProgressBar()) {
    for (int i = 0; i <= 100; i++) {
        progress.Report((double) i / 100);
        Thread.Sleep(20);
    }
}
Console.WriteLine("Done.");