弹出窗口中的进程栏

问题描述 投票:0回答:1

好吧,我制作一个流程栏,这是有效的。现在,我在一个弹出窗口中有它,我希望它更新,而另一个线程(而不是主线程)正在完成一些单词。无论如何,我试图使用来自其他线程的信息更新进程,但它没有更新。我在另一个线程中使用for循环,我正在使用我,所以找到我剩下的百分比。在我的代码中:

void callPopUp()
    {
        new Thread(() => new PopUp().ShowDialog()).Start();

    }
   //___ other thread 
    bool running(int Baseline)
    {

        HomeMO();

        tcClient.WriteAny(statenumber, Int16.Parse("11"));
        while ( state != 11)
        {
            Thread.Sleep(500);
            tcClient.WriteAny(statenumber, Int16.Parse("11"));
        }
        StepInfo step= get_StepInfo();
        int point = step.Start_Step;
        callPopUp();

        stepPass = step.degress;
        startStep = step.Start_Step;
        stopStep = step.End_Step;
        for ( int i =0; i < step.runcount; i++)
        {
            try
            {

                callPopUp(i, step);
              ...

现在这是我的主要形式。这是我的弹出窗体中的代码:

  private void t_Tick(object sender, EventArgs e)
    {
        // graphics 
        g = Graphics.FromImage(bmp);
        // clear grapthic
        g.Clear(Color.LightBlue);
        //draw progressbar
        g.FillRectangle(Brushes.CornflowerBlue, new Rectangle(0, 0,(int)(percent * pbUNit), (int)pbHEIGHT));
        // draw % complete
        g.DrawString(percent + " %", new Font("Arial", (pbHEIGHT / 2F)), Brushes.Black, new PointF((pbWIDTH/2F)-20, (pbHEIGHT/2F)-20));

        //load bitmap in picturebox
        pictureBox1.Image = bmp;


        if(percent > 100)
        {
            // dispose
            g.Dispose();
            t.Stop();
        }
    }
}

这是绘制进程条的计时器。但不知何故,百分比没有更新。这是整个表格:

 public partial class PopUp : Form
{
    Timer t = new Timer();
    double pbUNit;
    float pbWIDTH, pbHEIGHT, pbComplete;
    Bitmap bmp;
    Graphics g;
    private int percent =0;
    public string Title;

    public int Percents
    {
        get { return percent; }
        set { percent = value; }
    }
    public PopUp()
    {
        InitializeComponent();
        this.Text = Title;
    }

    private void PopUp_Load(object sender, EventArgs e)
    {

        this.Text = Title;
        pbWIDTH = pictureBox1.Width;
        pbHEIGHT = pictureBox1.Height;
        pbUNit = pbWIDTH / 100.0;
        // pbComplete - this is equal to work completed in % [min = 0 max= 100]
        pbComplete = 0;

        bmp = new Bitmap((int)pbWIDTH, (int)pbHEIGHT);

        //timer
        t.Interval = 50;
        t.Tick += new EventHandler(this.t_Tick);
        t.Start();}

如果我只是在弹出窗口中放入一个计数器,这又有效。但是当我将数据发送到弹出窗口时它不起作用。它只是保持在0;

另外,我确实试过.show但是然后弹出窗体确实出现了,但我根本看不到我的进程条。

c# multithreading parameter-passing
1个回答
0
投票

您无法从另一个线程显示弹出对话框,您只能访问UI线程中的UI元素。

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