C# 计时器用法(DispatcherTimer、System.Timers.Timer、System.Threading.Timer)
2021-05-22 21:30
标签:sdn vat window int soft win mes event callback 首先,我觉得三种计时器最大的区别是:DispatcherTimer触发的内容会直接转到主线程去执行(耗时操作会卡住主线程),另外两个则是在副线程执行,如果需要修改界面,则需要手动转到主线程。 DispatcherTimer: System.Timers.Timer: System.Threading.Timer: 此处个人无关记载:Environment.TickCount C# 计时器用法(DispatcherTimer、System.Timers.Timer、System.Threading.Timer) 标签:sdn vat window int soft win mes event callback 原文地址:https://www.cnblogs.com/zebra-bin/p/11164703.html DispatcherTimer _timer;
public void TestDispatcherTimer()
{
_timer = new DispatcherTimer();
_timer.Interval = TimeSpan.FromSeconds(1);
_timer.Tick += _timer_Tick;
_timer.Start();
}
private void _timer_Tick(object sender, EventArgs e)
{
try
{
Trace.WriteLine("Test DispatcherTimer");
_timer.Stop();
}
catch (Exception ex)
{
Trace.WriteLine("Error");
_timer.Stop();
_timer.Start();
}
}
System.Timers.Timer _timer;
public void TestTimersTimer()
{
_timer = new System.Timers.Timer();
_timer.Interval = 1000; //单位毫秒
_timer.Elapsed += new System.Timers.ElapsedEventHandler(_timer_Elapsed);
_timer.Start();
}
private void _timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
try
{
Trace.WriteLine("Test System.Timers.Timer");
#region 此处展示的是把副线程的内容转到主线程
System.Windows.Application.Current.Dispatcher.Invoke(
new Action(() =>
{
Trace.WriteLine("同步切换");
}));
System.Windows.Application.Current.Dispatcher.BeginInvoke(
new Action(() =>
{
Trace.WriteLine("异步切换");
}));
#endregion
_timer.Stop();
}
catch (Exception ex)
{
Trace.WriteLine("Error");
_timer.Stop();
_timer.Start();
}
}
System.Threading.Timer _timer;
private void TeseThreadingTimer()
{
_timer = new System.Threading.Timer(new System.Threading.TimerCallback(Out), null, 0, 1000); //各参数意思详见:https://docs.microsoft.com/zh-cn/dotnet/api/system.threading.timer?redirectedfrom=MSDN&view=netframework-4.8
}
private void Out(object sender)
{
try
{
Trace.WriteLine("Test System.Threading.Timer");
}
catch (Exception ex)
{
Trace.WriteLine("Error");
}
}
private void Stop()
{
_timer.Dispose();
}
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文章标题:C# 计时器用法(DispatcherTimer、System.Timers.Timer、System.Threading.Timer)
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