//Don't return a void with async method!!!
//Convention: Always add Async to method name that is async
//if returning a string : async Task<string> RunDownloadASync()
private async Task <List <WebsiteDataModel> > RunDownloadAsync(IProgress <ProgressReportModel> progress,
CancellationToken cancellationToken)
{
List <string> websites = model.Websites;
List <WebsiteDataModel> output = new List <WebsiteDataModel>();
ProgressReportModel report = new ProgressReportModel();
foreach (string site in websites)
{
WebsiteDataModel results = await Task.Run(() => DownloadWebsite(site));
output.Add(results);
// if (cancellationToken.IsCancellationRequested){break;}
cancellationToken.ThrowIfCancellationRequested();
report.SitesDownloaded = output;
report.PercentageComplete = (output.Count * 100) / websites.Count;
progress.Report(report);
// ReportWebsiteInfo(results);
}
return(output);
//if returning a string :
//return "Yep";
}
protected async Task <WebsiteDataModel> DownloadWebsiteNativeAsync(string websiteUrl)
{
WebsiteDataModel output = new WebsiteDataModel();
WebClient client = new WebClient();
output.WebsiteUrl = websiteUrl;
output.WebsiteData = await client.DownloadStringTaskAsync(websiteUrl);
return(output);
}
protected WebsiteDataModel DownloadWebsite(string websiteUrl)
{
WebsiteDataModel output = new WebsiteDataModel();
WebClient client = new WebClient();
output.WebsiteUrl = websiteUrl;
output.WebsiteData = client.DownloadString(websiteUrl);
return(output);
}
private List <WebsiteDataModel> RunDownloadParallelSync()
{
List <string> websites = model.Websites;
List <WebsiteDataModel> output = new List <WebsiteDataModel>();
Parallel.ForEach <string>(websites, (site) => {
WebsiteDataModel results = DownloadWebsite(site);
output.Add(results);
});
return(output);
}
private List <WebsiteDataModel> RunDownload()
{
List <string> websites = model.Websites;
List <WebsiteDataModel> output = new List <WebsiteDataModel>();
foreach (string site in websites)
{
WebsiteDataModel results = DownloadWebsite(site);
output.Add(results);
}
return(output);
}
private async Task <List <WebsiteDataModel> > RunDownloadParallelASyncV2(IProgress <ProgressReportModel> progress)
{
List <string> websites = model.Websites;
List <WebsiteDataModel> output = new List <WebsiteDataModel>();
ProgressReportModel report = new ProgressReportModel();
await Task.Run(() => {
Parallel.ForEach <string>(websites, (site) => {
WebsiteDataModel results = DownloadWebsite(site);
output.Add(results);
report.SitesDownloaded = output;
report.PercentageComplete = (output.Count * 100) / websites.Count;
progress.Report(report);
});
});
return(output);
}
protected void ReportWebsiteInfo(WebsiteDataModel data)
{
form.add2ListBox(data.WebsiteData.Length.ToString("0000000") + " characters long. Downloaded: " + data.WebsiteUrl + Environment.NewLine);
}