C# 死循环导致界面卡死问题

Question

winform程序  我用一个timer控件 每200MS执行一次  用来获取数据  当获取到数据的时候  会弹出新窗体  但是弹出的新窗体会卡死   
在不停用该timer控件的情况下  怎么优化其性能 （试过用线程  但好像也有这样的问题  不知道是不是我线程没写好）    c#winform线程优化

Answer 1

BeginInvoke  委托开启新窗体！

Answer 2

http://www.cnblogs.com/Zeech-Lee/archive/2011/10/14/2212376.html

Answer 3

你timer线程中创建的窗体肯定没时间响应你的动作，因为线程都一直在工作。正确做法是在主窗口中提供一个方法用于调用委托显示新窗体。

Answer 4

private void ShowMsg(string msg)
        {
            if (this.InvokeRequired)
            {
                Action<string, bool> at = ShowMsg;
                this.Invoke(at, msg);
            }
            else
            {
                //显示窗口代码
                new FormMsg(msg).Show();
            }
        }

Answer 5

代码考过来没改完，改成：private void ShowMsg(string msg)
        {
            if (this.InvokeRequired)
            {
                Action<string> at = ShowMsg;
                this.Invoke(at, msg);
            }
            else
            {
                //显示窗口代码
                new FormMsg(msg).Show();
            }
        }

Answer 6

 private void timer1_Tick(object sender, EventArgs e)
        {            Phone ph = new Phone();
            AddPhone(ph);
            if (first == 0)
            {
                GetPhone_RunningEvent(null);
                first++;
            }
        }        public void AddPhone(Phone ph)
        {
            try
            {
                StringBuilder str = new StringBuilder();
                int count = LClient.LClientRcv(str);
                if (!string.IsNullOrWhiteSpace(str.ToString()))
                {
                    ph = PhoneCon(str.ToString());
                    if (ph.Number != null)
                    {
                        waitPhone.Add(ph);
                        this.BeginInvoke(new BeginInvokeCreateForm(GetPhone_RunningEvent));
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        } public void GetPhone_RunningEvent(object sender)
        {
            if (Jump.Ph == null)
            {
                if (waitPhone.Count > 0)
                {
                    if (string.IsNullOrEmpty(waitPhone[0].Error))
                    {
                        Jump.Ph = waitPhone[0]; //打开新窗体  该窗体关闭时触发GetPhone_RunningEvent事件
                        Jump.OpenJp().Show();
                        waitPhone.RemoveAt(0);
                    }
                    else
                    {
                        waitPhone.RemoveAt(0);
                        GetPhone_RunningEvent(sender);
                    }
                }
            }
            RunningEvent -= GetPhone_RunningEvent;
        }

Answer 7

如果没有应用到其他主线程东西，你就在线程直接new Form().Show()也是可以的

Answer 8

就timer控件在执行  帮忙看看代码  在8楼  

Answer 9

timer过于频繁，主线程又会占着，你就改成Thread线程去处理
放到Load事件启动
Thread _th=new Thread(new ThreadStart(Helper));
_th.Start();void Helper()
{
    while(!isBreak)
   {
    Phone ph = new Phone();
            AddPhone(ph);
            if (first == 0)
            {
                GetPhone_RunningEvent(null);
                first++;
            }
Thread.Sleep(200);//每200MS一次
}
}public void AddPhone(Phone ph)
        {
            try
            {
                StringBuilder str = new StringBuilder();
                int count = LClient.LClientRcv(str);
                if (!string.IsNullOrWhiteSpace(str.ToString()))
                {
                    ph = PhoneCon(str.ToString());
                    if (ph.Number != null)
                    {
                        waitPhone.Add(ph);
                        //新窗口,直接弹出不用委托
                       // this.BeginInvoke(new BeginInvokeCreateForm(GetPhone_RunningEvent));
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

Answer 10

那你就在定时器里加Appliction.DoEvents()

Answer 11

在弹出新窗体之前把timer stop()一下，处理完了重新start()

Answer 12

timer弹出窗体肯定是没问题的，你用个循环messagebox.show()是可以无限弹出的。
只是想不通你为什么要这么设计呢？