/// <summary>
/// Raise the ReportWorkDone event
/// </summary>
protected virtual void OnReportWorkDone(WorkDoneCancelEventArgs e)
{
if (ReportWorkDone != null)
{
ReportWorkDone(this, e);
}
}
void wt_ReportWorkDone(object sender, WorkDoneCancelEventArgs e)
{
//marshal call to UI thread
context.Post((obj) => lstView.Items.Add(e.PrimeFound.ToString()), null);
//should worker thread be cancelled, has user clicked cancel button?
e.Cancel = primeThreadCancel;
//+++++++++++++++++++++++++++++++++++++++++++++++++++++
//NOTE : This would also work to marshal call to UI thread
//+++++++++++++++++++++++++++++++++++++++++++++++++++++
//this.Invoke(new EventHandler(delegate
//{
// lstItems.Items.Add(e.PrimeFound.ToString());
//}));
}
private void DoWork(object data)
{
int divisorsFound = 0;
int startDivisor = 1;
long primeNumberLoopToFind = (long)data;
for (int i = 0; i < primeNumberLoopToFind; i++)
{
//wait for trigger
trigger.WaitOne();
divisorsFound = 0;
startDivisor = 1;
//check for prime numbers, and if we find one raise
//the ReportWorkDone event
while (startDivisor <= i)
{
if (i % startDivisor == 0)
{
divisorsFound++;
}
startDivisor++;
}
if (divisorsFound == 2)
{
WorkDoneCancelEventArgs e = new WorkDoneCancelEventArgs(i);
OnReportWorkDone(e);
cancel = e.Cancel;
//check whether thread should carry on,
//perhaps user cancelled it
if (cancel)
{
return;
}
}
}
}
