跨线程操作控件问题 InvokeRequired

Question

各位高手帮忙看下以下代码，多线程跨类对控件赋值控件没有显示值呢？在同一类里面控件就能显示，帮帮忙看下问题出现在哪，程序没有报错     
 public partial class PhotoMain : Form
    {
/开始执行
 private void button_ceshi_Click(object sender, EventArgs e)
        {
            GETI premierLeague = new GETI();
            Thread threads = new Thread(delegate() { premierLeague.sss(); });
            threads.Name = "PremierLeague";
            threadlist.Add(threads);
            threads.Start();
        }
        delegate void PhotoSta(string PhotoSum, string ImgSum, string CJ);        /// <summary>
        /// 更新状态栏
        /// </summary>
        public void ThisKeyWords(string PhotoSum, string ImgSum, string CJ)
        {
            lock (thisLock)
            {
                try
                {
                    if (this.statusBar_Photo.InvokeRequired)
                    {                        PhotoSta d = new PhotoSta(ThisKeyWords);
                        this.Invoke(d, new object[] { PhotoSum, ImgSum, CJ });
                    }
                    else
                    {
                        if (PhotoSum != null)
                        {
                            this.statusBar_Photo.Panels[0].Text = PhotoSum;
                        }
                        if (ImgSum != null)
                        {
                            this.statusBar_Photo.Panels[1].Text = ImgSum;
                        }                        if (CJ != null)
                        {
                            this.statusBar_Photo.Panels[2].Text = CJ;
                           
                        }
                       
                    }
                }
                catch (Exception ex) { error.LogError("Photo更新状态栏出错：", ex); }
            }
        }} public class GETI
    {
        public void sss()
        {
            PhotoMain ww = new PhotoMain();
            ww.ThisKeyWords(null, null, "显示停止！");
        }
    }

Answer 1

premierLeague.sss(); 是什么东西，和你的显示函数ThisKeyWords有什么关系

Answer 2

 PhotoMain ww = new PhotoMain();你这里不是 new 了一个新画面么？不是当前的。把当前的 Form 传进去，更新可以。public void sss(PhotoMain photoMain)
{
    photoMain.ThisKeyWords(null, null, "显示停止！");
}

Answer 3

 private void button_ceshi_Click(object sender, EventArgs e)
        {
            GETI premierLeague = new GETI();
            Thread threads = new Thread(delegate() { premierLeague.sss(this); });
            threads.Name = "PremierLeague";
            threadlist.Add(threads);
            threads.Start();
        }

Answer 4

试试将代码修改成这样看行不行：            Thread threads = new Thread(new ParameterizedThreadStart(ThisKeyWords));
            string[] strs=new string[3];
            strs[0] = "PhotoSum"; strs[1] = "ImgSum"; strs[2] = "CJ";
            threads.Start(strs);        delegate void PhotoSta(object o);        public void ThisKeyWords(object o)
        {
            string[] strs = (string[])o;
            string PhotoSum = strs[0]; string ImgSum = strs[1]; string CJ = strs[2];            if (this.statusBar_Photo.InvokeRequired)
            {                PhotoSta d = new PhotoSta(ThisKeyWords);
                this.Invoke(d, new object[] { PhotoSum, ImgSum, CJ });
            }
            else
            {
                if (PhotoSum != null)
                {
                    this.statusBar_Photo.Panels[0].Text = PhotoSum;
                }
                if (ImgSum != null)
                {
                    this.statusBar_Photo.Panels[1].Text = ImgSum;
                }                if (CJ != null)
                {
                    this.statusBar_Photo.Panels[2].Text = CJ;                }            }
        }

Answer 5

this.Invoke(d, new object[] { PhotoSum, ImgSum, CJ });//执行到这卡死了，有没有解决方法吗？     /// <summary>
        /// 更新状态栏
        /// </summary>
        public void ThisKeyWords(string PhotoSum, string ImgSum, string CJ)
        {
            lock (thisLock)
            {
                try
                {
                    if (this.statusBar_Photo.InvokeRequired)
                    {                        PhotoSta d = new PhotoSta(ThisKeyWords);
                        this.Invoke(d, new object[] { PhotoSum, ImgSum, CJ });//执行到这卡死了，有没有解决方法吗？
                    }
                    else
                    {
                        if (PhotoSum != null)
                        {
                            this.statusBar_Photo.Panels[0].Text = PhotoSum;
                        }
                        if (ImgSum != null)
                        {
                            this.statusBar_Photo.Panels[1].Text = ImgSum;
                        }                        if (CJ != null)
                        {
                            this.statusBar_Photo.Panels[2].Text = CJ;
                           
                        }
                       
                    }
                }
                catch (Exception ex) { error.LogError("Photo更新状态栏出错：", ex); }
            }
        }}