private void Bytesdownloaded(ByteArgs e) { this.Invoke(new ThreadStart(() => { progressBar1.Maximum = e.total; if (progressBar1.Value + e.Downloaded <= progressBar1.Maximum) { progressBar1.Value += e.Downloaded; SetLabel(line1, "Downloading Update..."); SetLabel(lblPercentage, (progressBar1.Value * 100 / progressBar1.Maximum) + "%"); } else { SetLabel(line1, "Download complete."); SetLabel(lblPercentage, (progressBar1.Value * 100 / progressBar1.Maximum) + "%"); } progressBar1.Refresh(); Invalidate(); })); }
public static bool DownloadFromWeb(string url, string file, string targetFolder) { try { //open a data stream from the supplied URL WebRequest webReq = WebRequest.Create(url + file); WebResponse webResponse = webReq.GetResponse(); Stream dataStream = webResponse.GetResponseStream(); //Download the data in chuncks var dataBuffer = new byte[1024]; //Get the total size of the download var dataLength = (int) webResponse.ContentLength; //lets declare our downloaded bytes event args var byteArgs = new ByteArgs(); byteArgs.Downloaded = 0; byteArgs.total = dataLength; //we need to test for a null as if an event is not consumed we will get an exception if (BytesDownloaded != null) BytesDownloaded(byteArgs); //Download the data var memoryStream = new MemoryStream(); while (true) { //Let's try and read the data int bytesFromStream = dataStream.Read(dataBuffer, 0, dataBuffer.Length); if (bytesFromStream == 0) { byteArgs.Downloaded = dataLength; byteArgs.total = dataLength; if (BytesDownloaded != null) BytesDownloaded(byteArgs); //Download complete break; } else { //Write the downloaded data memoryStream.Write(dataBuffer, 0, bytesFromStream); byteArgs.Downloaded = bytesFromStream; byteArgs.total = dataLength; if (BytesDownloaded != null) BytesDownloaded(byteArgs); } } //Convert the downloaded stream to a byte array byte[] downloadedData = memoryStream.ToArray(); //Release resources dataStream.Close(); memoryStream.Close(); //Write bytes to the specified file var newFile = new FileStream(targetFolder + file, FileMode.Create); newFile.Write(downloadedData, 0, downloadedData.Length); newFile.Close(); return true; } catch (Exception) { //We may not be connected to the internet //Or the URL may be incorrect return false; } }
private void Bytesdownloaded(ByteArgs e) { this.Invoke(new ThreadStart(() => { progressBar1.Maximum = e.total; if (progressBar1.Value + e.Downloaded <= progressBar1.Maximum) { progressBar1.Value += e.Downloaded; SetLabel(line1, "Downloading Update..."); SetLabel(lblPercentage, (progressBar1.Value*100 / progressBar1.Maximum) + "%"); } else { SetLabel(line1, "Download complete."); SetLabel(lblPercentage, (progressBar1.Value*100 / progressBar1.Maximum) + "%"); } progressBar1.Refresh(); Invalidate(); })); }
public static bool DownloadFromWeb(string url, string file, string targetFolder) { try { //open a data stream from the supplied URL WebRequest webReq = WebRequest.Create(url + file); WebResponse webResponse = webReq.GetResponse(); Stream dataStream = webResponse.GetResponseStream(); //Download the data in chuncks var dataBuffer = new byte[1024]; //Get the total size of the download var dataLength = (int)webResponse.ContentLength; //lets declare our downloaded bytes event args var byteArgs = new ByteArgs(); byteArgs.Downloaded = 0; byteArgs.total = dataLength; //we need to test for a null as if an event is not consumed we will get an exception if (BytesDownloaded != null) { BytesDownloaded(byteArgs); } //Download the data var memoryStream = new MemoryStream(); while (true) { //Let's try and read the data int bytesFromStream = dataStream.Read(dataBuffer, 0, dataBuffer.Length); if (bytesFromStream == 0) { byteArgs.Downloaded = dataLength; byteArgs.total = dataLength; if (BytesDownloaded != null) { BytesDownloaded(byteArgs); } //Download complete break; } else { //Write the downloaded data memoryStream.Write(dataBuffer, 0, bytesFromStream); byteArgs.Downloaded = bytesFromStream; byteArgs.total = dataLength; if (BytesDownloaded != null) { BytesDownloaded(byteArgs); } } } //Convert the downloaded stream to a byte array byte[] downloadedData = memoryStream.ToArray(); //Release resources dataStream.Close(); memoryStream.Close(); //Write bytes to the specified file var newFile = new FileStream(targetFolder + file, FileMode.Create); newFile.Write(downloadedData, 0, downloadedData.Length); newFile.Close(); return(true); } catch (Exception) { //We may not be connected to the internet //Or the URL may be incorrect return(false); } }