public DownloadDataAsync ( System address ) : void | ||
address | System | |
return | void |
WebClient client = new WebClient(); client.DownloadDataAsync(new Uri("https://example.com/file.pdf")); client.DownloadDataCompleted += (s, e) => { byte[] data = e.Result; // do something with the downloaded data };
private async TaskThis example is a method that utilizes the WebClient DownloadDataTaskAsync method to download data asynchronously in a background thread. The method is declared using the async and Task keywords, and uses the await keyword to ensure that the download operation completes before returning the downloaded data. In summary, the System.Net WebClient DownloadDataAsync method allows developers to download data asynchronously from a specified URL and is a part of the System.Net package library. Developers can use this method to download data in a background thread and handle the downloaded data using events or lambdas.DownloadFileAsync(string url) { using (WebClient client = new WebClient()) { byte[] data = await client.DownloadDataTaskAsync(new Uri(url)); return data; } }