// Events need to have void return type, they cannot have Task as a return type. This is the one exception that C# knows about.
private async void ExecuteAsync_Click(object sender, RoutedEventArgs e)
{
Progress <ProgressReportModel> progress = new Progress <ProgressReportModel>();
progress.ProgressChanged += ReportProgress;
var watch = System.Diagnostics.Stopwatch.StartNew();
/*
* ThrowIfCancellationRequested will throw an exception. So it's important to wrap our call in try/catch block.
*/
try
{
var results = await DemoMethod.RunDownloadAsync(progress, cts.Token);
PrintResults(results);
}
catch (OperationCanceledException)
{
resultsWindow.Text += $"The async downloaded was cancelled { Environment.NewLine }";
}
watch.Stop();
var elapsedMs = watch.ElapsedMilliseconds;
resultsWindow.Text += $"Total execution time: { elapsedMs }";
}
private void ExecuteSync_Click(object sender, RoutedEventArgs e)
{
var watch = System.Diagnostics.Stopwatch.StartNew();
//var results = DemoMethod.RunDownloadSync();
var results = DemoMethod.RunDownloadParallelSync();
PrintResults(results);
watch.Stop();
var elapsedMs = watch.ElapsedMilliseconds;
resultsWindow.Text += $"Total execution time: { elapsedMs }";
}
private async void ExecuteParallelAsync_Click(object sender, RoutedEventArgs e)
{
Progress <ProgressReportModel> progress = new Progress <ProgressReportModel>();
progress.ProgressChanged += ReportProgress;
var watch = System.Diagnostics.Stopwatch.StartNew();
var results = await DemoMethod.RunDownloadParallelAsyncV2(progress);
PrintResults(results);
watch.Stop();
var elapsedMs = watch.ElapsedMilliseconds;
resultsWindow.Text += $"Total execution time: { elapsedMs }";
}