C#Winform之等待窗体

窗体主要代码：

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public partial class frmWaitingNew : Form    {        public frmWaitingNew()        {            InitializeComponent();        }          private delegate void SetTextHandler(string text);        public void SetText(string text)        {            if (this.lbl_UserMsg.InvokeRequired)            {                this.Invoke(new SetTextHandler(SetText), text);            }            else            {                this.lbl_UserMsg.Text = text;            }        }          public bool IsShown = false;        DateTime StarTime;        private void frmWaitingNew_Shown(object sender, EventArgs e)        {            StarTime = ConvertEx.ToDateTimeEx("2014-06-15");            timer1.Start();            IsShown = true;        }          int RunSeconds = 0;        private void timer1_Tick(object sender, EventArgs e)        {            txt_Time.Text = StarTime.AddSeconds(++RunSeconds).ToString("mm:ss");        }      }

等待窗体调用类：

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/// <summary>    /// Using Singleton Design Pattern    /// </summary>    public class WaitFormService    {        public static void CreateWaitForm()        {            WaitFormService.Instance.CreateForm();        }          public static void CloseWaitForm()        {            WaitFormService.Instance.CloseForm();        }          public static void SetWaitFormCaption(string text)        {            WaitFormService.Instance.SetFormCaption(text);        }          private static WaitFormService _instance;        private static readonly Object syncLock = new Object();          public static WaitFormService Instance        {            get            {                if (WaitFormService._instance == null)                {                    lock (syncLock)                    {                        if (WaitFormService._instance == null)                        {                            WaitFormService._instance = new WaitFormService();                        }                    }                }                return WaitFormService._instance;            }        }          private WaitFormService()        {        }          private Thread waitThread;        private frmWaitingNew waitForm;          public void CreateForm()        {            try            {                if (waitThread != null)                {                    try                    {                        waitThread.Abort();                        waitThread.Join();                    }                    catch (Exception)                    {                    }                }                while (waitThread != null && waitThread.ThreadState != ThreadState.Aborted)                    Thread.Sleep(200);                  waitThread = new Thread(new ThreadStart(delegate()                {                    waitForm = new frmWaitingNew();                    Application.Run(waitForm);                }));                waitThread.Start();                ThreadWaite();            }            catch (Exception ex)            {                string sm = ex.Message;            }        }          void ThreadWaite()        {            Thread.Sleep(200);            if (!waitThread.IsAlive || waitForm == null || !waitForm.IsShown)                Thread.Sleep(20);          }          public void CloseForm()        {            if (waitThread != null)            {                try                {                    //waitThread.Abort();                    //就是在分页里面，不停的按下一页，下一页。Application.Run(waitForm);就会报错。使用下面代码                    //waitForm.Close();                    //waitForm.Dispose();                    ThreadWaite();                    waitForm.Invoke(new DClose(Close), null);                    waitThread.Abort();                    waitThread.Join();                    waitThread.DisableComObjectEagerCleanup();                  }                catch (Exception ex)                {                    Thread.Sleep(200);                    ThreadWaite();                    waitForm.Invoke(new DClose(Close), null);                    waitThread.Abort();                    waitThread.Join();                    waitThread.DisableComObjectEagerCleanup();                }            }        }        public delegate void DClose();          public void Close()        {            while ((int)waitForm.Handle < 0)                Thread.Sleep(20);            waitForm.Close();        }          public void SetFormCaption(string text)        {            if (waitForm != null)            {                try                {                    waitForm.SetText(text);                }                catch (Exception)                {                }            }        }      }

 

Demo下载地址：http://pan.baidu.com/s/1pJ9HSRD