public MainForm() InitializeComponent(); btnDownload.Click += BtnDownload_Click;
if (!string.IsNullOrWhiteSpace(expectedHash) && !computed.Equals(expectedHash, StringComparison.OrdinalIgnoreCase)) throw new InvalidDataException( $"Hash mismatch! Expected expectedHash, got computed."); sonic.exe download
var progress = new Progress<(long downloaded, long? total)>(p => if (p.total.HasValue) double percent = (double)p.downloaded / p.total.Value * 100; progressBar.Value = (int)percent; lblStatus.Text = $"Downloading… percent:F1% (p.downloaded / 1024:#,##0 KB)"; else lblStatus.Text = $"Downloading… p.downloaded / 1024:#,##0 KB"; ); public MainForm() InitializeComponent(); btnDownload
try await SonicDownloader.DownloadAsync( DOWNLOAD_URL, savePath, progress, CancellationToken.None); public MainForm() InitializeComponent()