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BeginInvoke界面照样卡死,求救赎

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悬赏园豆:20 [已解决问题] 解决于 2015-04-14 13:25

这里是我的BeginInvoke调用委托的方法:

public void BindData(string str)
        {
            if (string.IsNullOrEmpty(str))
            {
                prev = new PreviewForm(this);
                if (bottom == null)
                {
                    bottom = new BottomForm(prev);
                }
                if (right == null)
                {
                    right = new RightForm(this);
                }
                prev.Show(this.dockPanel1);
                right.Show(this.dockPanel1, WeifenLuo.WinFormsUI.DockState.DockRightAutoHide);
                bottom.Show(this.dockPanel1, WeifenLuo.WinFormsUI.DockState.DockBottomAutoHide);
            }
            else
            {
                if (str == "wenti")
                {
                    BeginInvoke(new MethodInvoker(delegate()
                    {
                        bottom.Show(this.dockPanel1, WeifenLuo.WinFormsUI.DockState.DockBottom);
                        right.Show(this.dockPanel1, WeifenLuo.WinFormsUI.DockState.DockRight);
                    }));
                }
                else
                {
                    BeginInvoke(new MethodInvoker(delegate()
                    {
                        right.Show(this.dockPanel1, WeifenLuo.WinFormsUI.DockState.DockRightAutoHide);
                        bottom.Show(this.dockPanel1, WeifenLuo.WinFormsUI.DockState.DockBottomAutoHide);
                    }));
                }
            }
        }
View Code

是因为调用的时候需要判断值:

首次加载

 private void MainForm_Load(object sender, EventArgs e)
        {
            BindData("");
        }
View Code

接受到主机发送的命令之后传值:

 private void Bind(Info_Node node, int vid, int type, string GroupNo)
        {
            label1.Visible = true;
            pic = null; question = null; answer = null; content = null; cour = null; anslist = null;
            axWindowsMediaPlayer1.currentPlaylist.clear();
            if (type == -1)
            {
                lblTitle.Visible = false;
                picTP.Visible = false;
                lblContent.Visible = false;
                lblSubject.Visible = true;

                lblSubject.Text = node.NodeTitle;
                lblSubject.Location = new Point((this.Width - lblSubject.Width) / 2, (this.Height - lblSubject.Height) / 2);
            }
            else
            {

                lblTitle.alphaRichTextBox1.Rtf = node.NodeRft;
                TypeConverter converter = TypeDescriptor.GetConverter(typeof(Point));
                lblTitle.Location = (Point)converter.ConvertFromString(node.NodeLocation);
                TypeConverter converters = TypeDescriptor.GetConverter(typeof(Size));
                lblTitle.Size = (Size)converters.ConvertFromString(node.NodeSize);
                lblTitle.Visible = true;
                if (type == 0)   //视频
                {
                    picTP.ImageLocation = "";
                    picTP.Visible = false;
                    lblContent.Visible = false;
                    lblSubject.Visible = false;
                    cour = Info_CoursewareBLL.GetInfo_Courseware(vid);
                    axWindowsMediaPlayer1.URL = cour.CoursewareURL;    
                    axWindowsMediaPlayer1.Visible = true;        
                 
                
                }
                else if (type == 1)//文字
                {

                    picTP.Visible = false; lblSubject.Visible = false;
                    lblContent.Visible = true; lblContent.Show();
                    axWindowsMediaPlayer1.Visible = false;
                    content = Info_ContentBLL.GetModel(node.NodeId);
                    if (content != null && content.Contents != "")
                    {
                      
                        lblContent.Location = (Point)converter.ConvertFromString(pointSize(content.CLocation, locOrSize.autoSize));
                         lblContent.Size = (Size)converters.ConvertFromString(content.CSize);
                        lblContent.alphaRichTextBox1.Rtf = content.Contents;
                        lblContent.Focus();
                    }
                }
                else if (type == 3)//问题
                {
                    axWindowsMediaPlayer1.Visible = false;
                    picTP.ImageLocation = "";
                    picTP.Visible = false; lblSubject.Visible = false;
                    lblContent.Visible = true;
                    content = null; pic = null;
                    question = Info_QuestionBLL.GetModel(node.NodeId);
                    if (question != null && question.QuestionContent != "")
                    {
                        if (question.QuestionSeconds > 0)
                        {
                            UPublic.Timers = question.QuestionSeconds;
                            UPublic.QuesId = question.QuestionId.ToString();
                            mainform.bottom.TimerStar();
                        }
                        lblContent.alphaRichTextBox1.Rtf = question.QuestionContent;
                        lblContent.Location = (Point)converter.ConvertFromString(pointSize(question.QLocation.Trim(), locOrSize.location));
                        lblContent.Size = (Size)converters.ConvertFromString(question.QSize);
                    }
                    //加载(刷新)
                    mainform.BindData("wenti");
                }
            }
            Thread.Sleep(800);
            label1.Visible = false;
        }
View Code

这里的主要是在

//加载(刷新)
mainform.BindData("wenti");

这里调用的,这里的界面处理用的dockPanal,目的是为了控制右侧和底部菜单的隐藏和现实,但是现在程序启动之后就会卡死,求大神赐教

跪谢!

_Vegetables的主页 _Vegetables | 小虾三级 | 园豆:586
提问于:2015-04-14 10:22
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最佳答案
0

Contorl.BeginInvoke 是为了解决跨线程访问控件的多线程同步问题,也就是说当你从不是创建控件的线程访问控件时,你需要使用 BeginInvoke ,可以通过 InvokeRequired 属性来判断是否需要使用方法。

 

因此,你这里的使用是错误的,我推荐你一种简单的方式,使用 BackgroundWorker 组件。

收获园豆:20
Launcher | 高人七级 |园豆:45050 | 2015-04-14 10:54

高人呀,我大清早三小时,终于找到了BackgroundWorker可能会解决,先谢谢大神了,我还没有来得及看用法呢

_Vegetables | 园豆:586 (小虾三级) | 2015-04-14 10:57

一语惊醒梦中人,再次感谢

_Vegetables | 园豆:586 (小虾三级) | 2015-04-14 13:25
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