添加进度栏C＃WPF

Question

I'm trying to add a progress bar into my program.

FileLoadPB.Maximum = mainClass.values.realXPos.Count;
for (int i = 0; i < mainClass.values.realXPos.Count; ++i)
{
    FileLoadPB.Value += i;
    ComponentList.Items.Add(new MappedPoint { pointNum = i + 1, xPoint = mainClass.values.realXPos[i], yPoint = mainClass.values.realYPos[i] });
}

I want the FileLoadPB progress bar to increment by 'i' each time an object is added to my ListView. This works, however it doesn't actually show the progression of the bar. It only shows empty at the start of the loop, and full and the end. I've read a few things on BackgroundWorker, however I'm not sure how to implement it.

Answer 1

The following code is just a dummy to illustrate how to use the BackgroundWorker. Hope it helps

public partial class MainWindow : Window {
    BackgroundWorker backgroundWorker = new BackgroundWorker();
    List<int> listDummy = new List<int>();

    public MainWindow() {
        InitializeComponent();

        backgroundWorker.WorkerReportsProgress = true;
        backgroundWorker.ProgressChanged += backgroundWorker_ProgressChanged;
        backgroundWorker.DoWork += backgroundWorker_DoWork;
    }

    void backgroundWorker_DoWork(object sender, DoWorkEventArgs e) {
        var numberOfItems = 111;
        for (int i = 0; i < numberOfItems; i++) {
            listDummy.Add(i);
            Thread.Sleep(500);

            backgroundWorker.ReportProgress(Convert.ToInt32((double)i / numberOfItems * 100));
        }
    }

    void backgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e) {
        progressBar1.Value = e.ProgressPercentage;
    }

    private void Button_Click(object sender, RoutedEventArgs e) {
        backgroundWorker.RunWorkerAsync();
    }
}