显示问题的 WPF 进度条

本文关键字：WPF 问题 显示 | 更新日期: 2023-09-27 18:36:49

我在显示进度条值时遇到问题。我想要，该进度条使用其他线程来更新他的值，但它仅在 ParseTpSheet 方法之后执行此操作。我希望，你会帮助我。谢谢。

namespace IntegrationPlanning.Controls
{
/// <summary>
/// Логика взаимодействия для PlaningParserControl.xaml
/// </summary>
[Serializable]
public partial class PlaningParserControl : UserControl
{
    private BackgroundWorker worker = new BackgroundWorker();
    private readonly PlaningParserModel _parserModel = new PlaningParserModel();
    public PlaningParserControl()
    {
        InitializeComponent();
        worker.WorkerReportsProgress = true;
        worker.ProgressChanged += worker_ProgressChanged;
        worker.DoWork += worker_DoWork;
    }
    void worker_DoWork(object sender, DoWorkEventArgs e)
    {
        for (var i = 0; i < 100; i++)
        {
            Thread.Sleep(150);
            worker.ReportProgress(i);
        }
    }
    void worker_ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        ParseProgressBar.Value = e.ProgressPercentage;
    }
    private void IncProgressBar(int value)
    {
        ParseProgressBar.Value += value;
    }
    private void AddFileButton_OnClick(object sender, RoutedEventArgs e)
    {
        var excelApplication = new Excel.Application();
        var openFileDialog = new OpenFileDialog {Filter = "excel files(*.xls)(*.xlsx)|*.xls;*.xlsx" };
        openFileDialog.ShowDialog();
        if (openFileDialog.FileName.EndsWith(".xls") || openFileDialog.FileName.EndsWith(".xlsx"))
        {
            ParseProgressBar.Value = 0;
            worker.RunWorkerAsync();
            _parserModel.Workbook = excelApplication.Workbooks.Add(openFileDialog.FileName);
            _parserModel.ParseTpSheet();
        }
        else
        {
            MessageBox.Show("Файл не был выбран", "Уведомление", MessageBoxButton.OK, MessageBoxImage.Information);
        }
        excelApplication.Quit();
    }
  }
}

显示问题的 WPF 进度条

非常感谢@Haukinger。结果代码在这里：

namespace IntegrationPlanning.Controls
{
/// <summary>
/// Логика взаимодействия для PlaningParserControl.xaml
/// </summary>
[Serializable]
public partial class PlaningParserControl : UserControl
{
    public int ParseProgressBarValue { get; set; }
    private BackgroundWorker worker = new BackgroundWorker();
    private readonly PlaningParserModel _parserModel = new PlaningParserModel();
    public PlaningParserControl()
    {
        InitializeComponent();
        worker.WorkerReportsProgress = true;
        worker.ProgressChanged += worker_ProgressChanged;
        worker.DoWork += worker_DoWork;
    }
    void worker_DoWork(object sender, DoWorkEventArgs e)
    {
        for (var i = 0; i < 100; i++)
        {
            Thread.Sleep(150);
            worker.ReportProgress(i);
        }
    }
    private void worker_ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        ParseProgressBar.Value = e.ProgressPercentage;;
    }
    private void AddFileButton_OnClick(object sender, RoutedEventArgs e)
    {
        var excelApplication = new Excel.Application();
        var openFileDialog = new OpenFileDialog {Filter = "excel files(*.xls)(*.xlsx)|*.xls;*.xlsx" };
        openFileDialog.ShowDialog();
        if (openFileDialog.FileName.EndsWith(".xls") || openFileDialog.FileName.EndsWith(".xlsx"))
        {
            ParseProgressBar.Value = 0;
            worker.RunWorkerAsync();
            var t = Task.Run(() =>
            {
                _parserModel.Workbook = excelApplication.Workbooks.Add(openFileDialog.FileName);
                _parserModel.ParseTpSheet();
            });
        }
        else
        {
            MessageBox.Show("Файл не был выбран", "Уведомление", MessageBoxButton.OK, MessageBoxImage.Information);
        }
        excelApplication.Quit();
    }
}
}
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