void _time_Tick(object sender, EventArgs e)
{
TimerErrorException tex = null;
try {
var t = (DispatcherTimer)sender;
if (!t.IsEnabled)
{
return;
}
t.Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() => {
t.Stop();
}));
IsRunning = true;
if (Command != null)
{
Command();
}
} catch (Exception exc) {
if (Error != null)
{
Error(this, tex = new TimerErrorException(exc));
}
} finally {
IsRunning = false;
if (tex == null || !tex.CancelFinishedEvent)
{
RaiseFinished();
}
}
}
public void Init(CommandDelegate command, TimeSpan delay)
{
Cancel();
if (delay != TimeSpan.MinValue)
{
Delay = delay;
}
_timer = new Timer(o => {
if (IsRunning)
{
return;
}
TimerErrorException tex = null;
try {
WaitHandler.Reset();
IsRunning = true;
command();
if (_period == infinity)
{
Cancel();
}
} catch (Exception exc) {
if (Error != null)
{
Error(this, tex = new TimerErrorException(exc));
}
} finally {
IsRunning = false;
try {
WaitHandler.Set();
} catch { }
if (tex == null || !tex.CancelFinishedEvent)
{
RaiseFinished();
}
}
},
null, Delay, _period);
}
