C#从单独的类更新backgroundworker进度 [英] C# updating backgroundworker progress from separate class

问题描述

我试图通过后台工作程序在与调度程序不同的类中运行函数，并让其在每次迭代中更新进度.我没有收到任何错误，backgroundworker正常运行，但是我的文本框从不更新...

I am trying to run a function in a different class than the dispatcher through a backgroundworker and have it update the progress on every iteration. I am getting no errors and the backgroundworker is functioning properly, but my textbox never updates...

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

    public MainWindow()
    {
        InitializeComponent();
        worker.WorkerReportsProgress = true;
        worker.DoWork += new DoWorkEventHandler(workerDoWork);
        worker.ProgressChanged += new ProgressChangedEventHandler(workerProgressChanged);
    }

    private void myButtonClick(object sender, RoutedEventArgs e)
    {
        worker.RunWorkerAsync();
    }

    void workerDoWork(object sender, DoWorkEventArgs e)
    {
        yv_usfm.convert(worker);
    }

    void workerProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        myTextBox.Text = "some text";
    }

}

public class yv_usfm
{
    public static void convert(BackgroundWorker worker)
    {
        int i = 1;
        while (i < 100)
        {
            worker.ReportProgress(i);
            i++;
        }
    }
}

推荐答案

尝试一下:

void DoWork(...)
{
    YourMethod();
}

void YourMethod()
{
    if(yourControl.InvokeRequired)
        yourControl.Invoke((Action)(() => YourMethod()));
    else
    {
        //Access controls
    }
}

希望这项帮助.

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