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);
}
}
