WPF?? BackgroundWorker ? ProgressBar? ???? ??

? ?????? WPF ???????? BackgroundWorker? ?????? ?? ProgressBar? ??? ??? ?? ???? ?????. ??? ?? ?? ??? ??? ??? ??? ?????.

?? ??:

???? ?? WorkerReportsProgress? BackgroundWorker ??? true?? ???? ??? ?????. ?? ?? ?? ?? ????? ??????.

DoWork ??? ??? ?:

1. ?? ?? ?? ??: ?? ?? ?? ?? ????? ReportProgress ???? ???? ???? ???? ?????. ??? ?? ??? ??? ???? ???? ?? ??? ?????.
2. ?? ?? ????: ??? ??? ??? ?? ?? ?? ?? ??? ?????? ??? ?? ??? ?????.

???? ???? ??(ProgressChanged ??? ???):

1. UI ??? ???: ProgressChanged ???? UI ????? ???? ProgressBar? ?? UI ??? ?? ??? ? ????.
2. ProgressBar ????: ProgressBar?? ?? Value ?? ???? e.ProgressPercentage? BackgroundWorker ??? ?????????.

private void ProgressChanged(object sender, ProgressChangedEventArgs e)
{
    // Update the ProgressBar on the UI thread
    progressBar.Value = e.ProgressPercentage;
}

?? ? ???(UI ???):

1. BackgroundWorker ?????: BackgroundWorker ????? ?????.
2. ??? ??: RunWorkerAsync()? ???? ????? ??? ?????.
3. ??? ??: UI ???? ??? ????? ????? ProgressChanged ???? ?????.

??:

public partial class MainWindow : Window
{
    BackgroundWorker bw = new BackgroundWorker();

    public MainWindow()
    {
        InitializeComponent(); // Assuming you have a ProgressBar named 'progressBar'

        bw.WorkerReportsProgress = true;
        bw.ProgressChanged += ProgressChanged;
        bw.DoWork += DoWork;
        bw.RunWorkerAsync();
    }

    private void ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        progressBar.Value = e.ProgressPercentage;
    }

    private void DoWork(object sender, DoWorkEventArgs e)
    {
        // Simulate a long-running task
        for (int i = 0; i < 100; i++)
        {
            Thread.Sleep(50); // Simulate work
            bw.ReportProgress(i);
        }
    }
}

??? ??? ??? WPF ??????? BackgroundWorker ????? ProgressBar ????? ???? ???? ???? ???? ??? ??? ?????? ??? ? ????.

? ??? WPF?? ??? ??? ????? ?? BackgroundWorker? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!