Progress Bar for Console Applications (.NET Core 2.0)

A simple way to represent the progress of a long-running task in a C# console app. Targets .NET Core 2.0.

Features

• ConsoleProgressBar

  • Implements IProgress<double> The IProgress interface greatly simplifies the effort to report progress from an async method to the UI, clunky boilerplate code to ensure thread-safety is not required since the SynchronizationContext is captured when the progress bar is instantiated.
  • Efficient and light-weight Console can become sluggish and unresponsive when called frequently, this progress bar only performs 8 calls/second regardless of how often progress is reported.
  • Customizable Each component of the progress bar (start/end brackets, completed/incomplete blocks, progress animation) can be set to any string value through public properties and each item displayed (the progress bar itself, percentage complete, animation) can be shown or hidden.

• FileTransferProgressBar

  • Extends ConsoleProgressBar and adds the ability to detect when a file transfer has stalled.
  • If the time since last progress reported exceeds the TimeSpanFileStalled value, the FileTransferStalled event fires.
  • Provides further customization of the display with the ability to show/hide the bytes received and file size in bytes

Examples

Windows

Mac (VS Code)

Ubuntu

Usage

Numbers correspond to the examples shown above, full source code for examples can be found in ./TestConsole/Program.cs

// 1. Default behavior
var pb1 = new ConsoleProgressBar();
await TestProgressBar(pb1, 1);

// 2. Customized all progress bar components
var pb2 = new ConsoleProgressBar
{
    NumberOfBlocks = 18,
    StartBracket = string.Empty,
    EndBracket = string.Empty,
    CompletedBlock = "\u2022",
    IncompleteBlock = "·",
    AnimationSequence = ProgressAnimations.RotatingPipe
};
await TestProgressBar(pb2, 2);

// 3. Hide progress bar
var pb3 = new ConsoleProgressBar
{
    DisplayBar = false,
    AnimationSequence = ProgressAnimations.RotatingTriangle
};
await TestProgressBar(pb3, 3);

// 4. Customized progress bar, successful file transfer
const long fileSize = (long)(8 * FileHelper.OneKB);
var pb4 = new FileTransferProgressBar(fileSize, TimeSpan.FromSeconds(5))
{
    NumberOfBlocks = 15,
    StartBracket = "|",
    EndBracket = "|",
    CompletedBlock = "|",
    IncompleteBlock = "\u00a0",
    AnimationSequence = ProgressAnimations.PulsingLine
};
await TestFileTransferProgressBar(pb4, fileSize, 4);

// 5. Hide progress bar and animation, unsuccessful file transfer
const long fileSize2 = (long)(100 * 36 * FileHelper.OneMB);
var pb5 = new FileTransferProgressBar(fileSize2, TimeSpan.FromSeconds(5))
{
    DisplayBar = false,
    DisplayAnimation = false
};
pb5.FileTransferStalled += HandleFileTransferStalled;
await TestFileTransferStalled(pb5, fileSize2, 5);