private async void ParallelAsyncTest()
{
//disable UI elements
ResetUI();
SyncBtnIsEnabled = AsyncBtnIsEnabled = ParallelBtnIsEnabled = ParallelAsyncBtnIsEnabled = false;
CancelBtnIsEnabled = true;
ParallelAsyncBtnTag = "Clicked";
DTime.Start();
TotalTimeWatch.Start();
//Initialize instances of Progress class that are later used to trigger
//the events that update UI
Progress <ImageTestReportModel> imageTestProgress = new Progress <ImageTestReportModel>();
imageTestProgress.ProgressChanged += ImageTestProgressEvent;
Progress <PNumTestReportModel> pNumTestProgress = new Progress <PNumTestReportModel>();
pNumTestProgress.ProgressChanged += PNumTestProgressEvent;
Progress <WebsitesTestReportModel> websitesTestProgress = new Progress <WebsitesTestReportModel>();
websitesTestProgress.ProgressChanged += WebsitesTestProgressEvent;
//Start executing all 3 tests asynchronously and in parallel
Task ImageTestTask = Task.Run(async() =>
{
try
{
ImageTestWatch.Start();
await ImageTest.StartAsync(imageTestProgress, cts.Token);
ImageTestCheckmarkVisibility = Visibility.Visible;
ImageTestWatch.Stop();
}
catch (OperationCanceledException)
{
//Call dispatcher to update UI from worker thread
Application.Current.Dispatcher.Invoke(() =>
{
ImageTestProgressBarColour = new SolidColorBrush(Colors.Red);
ImageTestCrossmarkVisibility = Visibility.Visible;
CancelBtnTag = null;
});
}
});
Task NthNumberTestTask = Task.Run(async() =>
{
try
{
PNumTestWatch.Start();
await PrimeNumbersTest.StartParallelAsync(pNumTestProgress, pNumRangeTest, pNumNthTest, cts.Token);
PNumTestWatch.Stop();
PNumTestCheckmarkVisibility = Visibility.Visible;
}
catch (OperationCanceledException)
{
Application.Current.Dispatcher.Invoke(() =>
{
PNumTestProgressBarColour = new SolidColorBrush(Colors.Red);
PNumTestCrossmarkVisibility = Visibility.Visible;
CancelBtnTag = null;
});
}
});
Task WebsitesTestTask = Task.Run(async() =>
{
try
{
WebsitesTestWatch.Start();
await WebsitesTest.StartParallelAsync(websitesTestProgress, cts.Token);
WebsitesTestWatch.Stop();
WebsitesTestCheckmarkVisibility = Visibility.Visible;
}
catch (Exception ex)
{
Application.Current.Dispatcher.Invoke(() =>
{
if (ex is OperationCanceledException || ex is WebException)
{
WebsitesTestProgressBarColour = new SolidColorBrush(Colors.Red);
WebsitesTestCrossmarkVisibility = Visibility.Visible;
CancelBtnTag = null;
}
});
}
});
await Task.WhenAll(ImageTestTask, NthNumberTestTask, WebsitesTestTask);
//enable UI elements
AsyncBtnIsEnabled = ParallelAsyncBtnIsEnabled = ResetBtnIsEnabled = true;
CancelBtnIsEnabled = false;
ParallelAsyncBtnTag = null;
//Force update UI to enable disabled buttons
CommandManager.InvalidateRequerySuggested();
TotalTimeWatch.Stop();
DTime.Stop();
//Push the results of execution to the results manager
ResultsDataManager.SetResults("Parallel + Async", ImageTestTimerText, PNumTestTimerText, WebsitesTestTimerText, TotalTimeText, !cts.IsCancellationRequested);
}
private async void AsyncTest()
{
//disable UI elements
ResetUI();
SyncBtnIsEnabled = AsyncBtnIsEnabled = ParallelBtnIsEnabled = ParallelAsyncBtnIsEnabled = false;
CancelBtnIsEnabled = true;
AsyncBtnTag = "Clicked";
DTime.Start();
TotalTimeWatch.Start();
//Initialize instances of Progress class that are later used to trigger
//the events that update UI
Progress <ImageTestReportModel> imageTestProgress = new Progress <ImageTestReportModel>();
imageTestProgress.ProgressChanged += ImageTestProgressEvent;
Progress <PNumTestReportModel> pNumTestProgress = new Progress <PNumTestReportModel>();
pNumTestProgress.ProgressChanged += PNumTestProgressEvent;
Progress <WebsitesTestReportModel> websitesTestProgress = new Progress <WebsitesTestReportModel>();
websitesTestProgress.ProgressChanged += WebsitesTestProgressEvent;
//Use try catch statement for cancellation Tokens
try
{
ImageTestWatch.Start();
await ImageTest.StartAsync(imageTestProgress, cts.Token);
ImageTestWatch.Stop();
ImageTestCheckmarkVisibility = Visibility.Visible;
}
catch (OperationCanceledException)
{
ImageTestProgressBarColour = new SolidColorBrush(Colors.Red);
ImageTestCrossmarkVisibility = Visibility.Visible;
CancelBtnTag = null;
}
try
{
PNumTestWatch.Start();
await PrimeNumbersTest.StartAsync(pNumTestProgress, pNumRangeTest, pNumNthTest, cts.Token);
PNumTestWatch.Stop();
PNumTestCheckmarkVisibility = Visibility.Visible;
}
catch (OperationCanceledException)
{
PNumTestProgressBarColour = new SolidColorBrush(Colors.Red);
PNumTestCrossmarkVisibility = Visibility.Visible;
CancelBtnTag = null;
}
try
{
WebsitesTestWatch.Start();
await WebsitesTest.StartAsync(websitesTestProgress, cts.Token);
WebsitesTestWatch.Stop();
WebsitesTestCheckmarkVisibility = Visibility.Visible;
}
catch (Exception ex)
{
if (ex is OperationCanceledException || ex is WebException)
{
WebsitesTestProgressBarColour = new SolidColorBrush(Colors.Red);
WebsitesTestCrossmarkVisibility = Visibility.Visible;
CancelBtnTag = null;
}
}
//enable UI elements
AsyncBtnIsEnabled = ParallelAsyncBtnIsEnabled = ResetBtnIsEnabled = true;
CancelBtnIsEnabled = false;
AsyncBtnTag = null;
//Force update UI to enable disabled buttons
CommandManager.InvalidateRequerySuggested();
TotalTimeWatch.Stop();
DTime.Stop();
//Push the results of execution to the results manager
ResultsDataManager.SetResults("Asynchronous", ImageTestTimerText, PNumTestTimerText, WebsitesTestTimerText, TotalTimeText, !cts.IsCancellationRequested);
}
