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");
}
}
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等待窗体调用类：
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///
/// Using Singleton Design Pattern
///
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 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
Thread.Sleep(20);
waitForm.Close();
}
public void SetFormCaption(string text)
{
if (waitForm != null)
{
try
{
waitForm.SetText(text);
}
catch (Exception)
{
}
}
}
}
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Demo下载地址：http://pan.baidu.com/s/1pJ9HSRD