Mixing
Webclient returning download progress as 0
0
I have written a helper class to download file from a server using the webclient class. The code was working fine until a while ago. All of a sudden the code is not working, the download progress is always 0 and toal bytes to receive is always -1. The download works fine but the issue is only with the actual progress change. The download progress remains zero from start to the end of download process, even the total bytes to receive remain as -1.
Please find the sample code mentioned below.
public class FileDownloader
{
private string _zipFilePath;
private string _destinationPath;
private int _productId;
public Action<int,int> progressListener;
private WebClient _client;
public void Download(string cloudPath, string localPath,int id)
{
_productId = id;
_zipFilePath = localPath +id+ ".zip";
_destinationPath = localPath + id;
if (!Directory.Exists(localPath))
{
Directory.CreateDirectory(localPath);
}
_client = new WebClient();
if (cloudPath != "")
{
Uri uri = new Uri(cloudPath);
_client.DownloadFileCompleted += new AsyncCompletedEventHandler(DownloadFileCallback);
_client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(DownloadProgressCallback);
_client.DownloadFileAsync(uri, _zipFilePath);
}else
{
progressListener?.Invoke(_productId, -1);
}
}
public void DownloadProgressCallback(object sender, DownloadProgressChangedEventArgs e)
{
if(e.ProgressPercentage != 100)
progressListener?.Invoke(_productId, e.ProgressPercentage);
}
public void CancelDownload()
{
_client.CancelAsync();
}
public void DownloadFileCallback(object sender, AsyncCompletedEventArgs e)
{
if (e.Cancelled == false && e.Error == null)
{
//UnzipContent(_destinationPath,_zipFilePath);
UnzipHandler unzipHandler = new UnzipHandler(_destinationPath, _zipFilePath,new UnzipCompletionCallback(UnzippedCourse));
Thread thread = new Thread(new ThreadStart(unzipHandler.UnzipContent));
thread.Start();
}
else
{
DeleteZip(_zipFilePath);
progressListener?.Invoke(_productId, -1);
}
}
private void DeleteZip(string zipPath)
{
if (File.Exists(zipPath))
{
File.Delete(zipPath);
}
}
public void UnzippedCourse(bool status)
{
DeleteZip(_zipFilePath);
if(status)
progressListener?.Invoke(_productId, 100);
else
progressListener?.Invoke(_productId, -1);
}
public delegate void UnzipCompletionCallback(bool result);
}
xamarin xamarin.ios xamarin.android webclient webclient-download
asked Nov 21 '18 at 11:38
Midhun KumarMidhun Kumar
10911
add a comment |
0
I have written a helper class to download file from a server using the webclient class. The code was working fine until a while ago. All of a sudden the code is not working, the download progress is always 0 and toal bytes to receive is always -1. The download works fine but the issue is only with the actual progress change. The download progress remains zero from start to the end of download process, even the total bytes to receive remain as -1.
Please find the sample code mentioned below.
public class FileDownloader
{
private string _zipFilePath;
private string _destinationPath;
private int _productId;
public Action<int,int> progressListener;
private WebClient _client;
public void Download(string cloudPath, string localPath,int id)
{
_productId = id;
_zipFilePath = localPath +id+ ".zip";
_destinationPath = localPath + id;
if (!Directory.Exists(localPath))
{
Directory.CreateDirectory(localPath);
}
_client = new WebClient();
if (cloudPath != "")
{
Uri uri = new Uri(cloudPath);
_client.DownloadFileCompleted += new AsyncCompletedEventHandler(DownloadFileCallback);
_client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(DownloadProgressCallback);
_client.DownloadFileAsync(uri, _zipFilePath);
}else
{
progressListener?.Invoke(_productId, -1);
}
}
public void DownloadProgressCallback(object sender, DownloadProgressChangedEventArgs e)
{
if(e.ProgressPercentage != 100)
progressListener?.Invoke(_productId, e.ProgressPercentage);
}
public void CancelDownload()
{
_client.CancelAsync();
}
public void DownloadFileCallback(object sender, AsyncCompletedEventArgs e)
{
if (e.Cancelled == false && e.Error == null)
{
//UnzipContent(_destinationPath,_zipFilePath);
UnzipHandler unzipHandler = new UnzipHandler(_destinationPath, _zipFilePath,new UnzipCompletionCallback(UnzippedCourse));
Thread thread = new Thread(new ThreadStart(unzipHandler.UnzipContent));
thread.Start();
}
else
{
DeleteZip(_zipFilePath);
progressListener?.Invoke(_productId, -1);
}
}
private void DeleteZip(string zipPath)
{
if (File.Exists(zipPath))
{
File.Delete(zipPath);
}
}
public void UnzippedCourse(bool status)
{
DeleteZip(_zipFilePath);
if(status)
progressListener?.Invoke(_productId, 100);
else
progressListener?.Invoke(_productId, -1);
}
public delegate void UnzipCompletionCallback(bool result);
}
xamarin xamarin.ios xamarin.android webclient webclient-download
asked Nov 21 '18 at 11:38
Midhun KumarMidhun Kumar
10911
stackoverflow.com/a/31256247/4984832
– SushiHangover
Nov 21 '18 at 11:46
But the same code was working previously. Nothing seems to have changed from any side.
– Midhun Kumar
Nov 23 '18 at 10:55
Look at the returned headers and see if the content length is zero...
– SushiHangover
Nov 23 '18 at 14:51
@SushiHangover I checked the response header and it has content length property in it.
– Midhun Kumar
Nov 26 '18 at 9:27
@SushiHangover also the content type was application/octet-stream
– Midhun Kumar
Nov 26 '18 at 9:33
add a comment |
0
0
0
I have written a helper class to download file from a server using the webclient class. The code was working fine until a while ago. All of a sudden the code is not working, the download progress is always 0 and toal bytes to receive is always -1. The download works fine but the issue is only with the actual progress change. The download progress remains zero from start to the end of download process, even the total bytes to receive remain as -1.
Please find the sample code mentioned below.
public class FileDownloader
{
private string _zipFilePath;
private string _destinationPath;
private int _productId;
public Action<int,int> progressListener;
private WebClient _client;
public void Download(string cloudPath, string localPath,int id)
{
_productId = id;
_zipFilePath = localPath +id+ ".zip";
_destinationPath = localPath + id;
if (!Directory.Exists(localPath))
{
Directory.CreateDirectory(localPath);
}
_client = new WebClient();
if (cloudPath != "")
{
Uri uri = new Uri(cloudPath);
_client.DownloadFileCompleted += new AsyncCompletedEventHandler(DownloadFileCallback);
_client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(DownloadProgressCallback);
_client.DownloadFileAsync(uri, _zipFilePath);
}else
{
progressListener?.Invoke(_productId, -1);
}
}
public void DownloadProgressCallback(object sender, DownloadProgressChangedEventArgs e)
{
if(e.ProgressPercentage != 100)
progressListener?.Invoke(_productId, e.ProgressPercentage);
}
public void CancelDownload()
{
_client.CancelAsync();
}
public void DownloadFileCallback(object sender, AsyncCompletedEventArgs e)
{
if (e.Cancelled == false && e.Error == null)
{
//UnzipContent(_destinationPath,_zipFilePath);
UnzipHandler unzipHandler = new UnzipHandler(_destinationPath, _zipFilePath,new UnzipCompletionCallback(UnzippedCourse));
Thread thread = new Thread(new ThreadStart(unzipHandler.UnzipContent));
thread.Start();
}
else
{
DeleteZip(_zipFilePath);
progressListener?.Invoke(_productId, -1);
}
}
private void DeleteZip(string zipPath)
{
if (File.Exists(zipPath))
{
File.Delete(zipPath);
}
}
public void UnzippedCourse(bool status)
{
DeleteZip(_zipFilePath);
if(status)
progressListener?.Invoke(_productId, 100);
else
progressListener?.Invoke(_productId, -1);
}
public delegate void UnzipCompletionCallback(bool result);
}
xamarin xamarin.ios xamarin.android webclient webclient-download
asked Nov 21 '18 at 11:38
Midhun KumarMidhun Kumar
10911
I have written a helper class to download file from a server using the webclient class. The code was working fine until a while ago. All of a sudden the code is not working, the download progress is always 0 and toal bytes to receive is always -1. The download works fine but the issue is only with the actual progress change. The download progress remains zero from start to the end of download process, even the total bytes to receive remain as -1.
Please find the sample code mentioned below.
public class FileDownloader
{
private string _zipFilePath;
private string _destinationPath;
private int _productId;
public Action<int,int> progressListener;
private WebClient _client;
public void Download(string cloudPath, string localPath,int id)
{
_productId = id;
_zipFilePath = localPath +id+ ".zip";
_destinationPath = localPath + id;
if (!Directory.Exists(localPath))
{
Directory.CreateDirectory(localPath);
}
_client = new WebClient();
if (cloudPath != "")
{
Uri uri = new Uri(cloudPath);
_client.DownloadFileCompleted += new AsyncCompletedEventHandler(DownloadFileCallback);
_client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(DownloadProgressCallback);
_client.DownloadFileAsync(uri, _zipFilePath);
}else
{
progressListener?.Invoke(_productId, -1);
}
}
public void DownloadProgressCallback(object sender, DownloadProgressChangedEventArgs e)
{
if(e.ProgressPercentage != 100)
progressListener?.Invoke(_productId, e.ProgressPercentage);
}
public void CancelDownload()
{
_client.CancelAsync();
}
public void DownloadFileCallback(object sender, AsyncCompletedEventArgs e)
{
if (e.Cancelled == false && e.Error == null)
{
//UnzipContent(_destinationPath,_zipFilePath);
UnzipHandler unzipHandler = new UnzipHandler(_destinationPath, _zipFilePath,new UnzipCompletionCallback(UnzippedCourse));
Thread thread = new Thread(new ThreadStart(unzipHandler.UnzipContent));
thread.Start();
}
else
{
DeleteZip(_zipFilePath);
progressListener?.Invoke(_productId, -1);
}
}
private void DeleteZip(string zipPath)
{
if (File.Exists(zipPath))
{
File.Delete(zipPath);
}
}
public void UnzippedCourse(bool status)
{
DeleteZip(_zipFilePath);
if(status)
progressListener?.Invoke(_productId, 100);
else
progressListener?.Invoke(_productId, -1);
}
public delegate void UnzipCompletionCallback(bool result);
}
xamarin xamarin.ios xamarin.android webclient webclient-download
xamarin xamarin.ios xamarin.android webclient webclient-download
asked Nov 21 '18 at 11:38
Midhun KumarMidhun Kumar
10911
asked Nov 21 '18 at 11:38
Midhun KumarMidhun Kumar
10911
asked Nov 21 '18 at 11:38
Midhun KumarMidhun Kumar
10911
asked Nov 21 '18 at 11:38
Midhun KumarMidhun Kumar
10911
asked Nov 21 '18 at 11:38
Midhun KumarMidhun Kumar
10911
10911
stackoverflow.com/a/31256247/4984832
– SushiHangover
Nov 21 '18 at 11:46
But the same code was working previously. Nothing seems to have changed from any side.
– Midhun Kumar
Nov 23 '18 at 10:55
Look at the returned headers and see if the content length is zero...
– SushiHangover
Nov 23 '18 at 14:51
@SushiHangover I checked the response header and it has content length property in it.
– Midhun Kumar
Nov 26 '18 at 9:27
@SushiHangover also the content type was application/octet-stream
– Midhun Kumar
Nov 26 '18 at 9:33
add a comment |
stackoverflow.com/a/31256247/4984832
– SushiHangover
Nov 21 '18 at 11:46
But the same code was working previously. Nothing seems to have changed from any side.
– Midhun Kumar
Nov 23 '18 at 10:55
Look at the returned headers and see if the content length is zero...
– SushiHangover
Nov 23 '18 at 14:51
@SushiHangover I checked the response header and it has content length property in it.
– Midhun Kumar
Nov 26 '18 at 9:27
@SushiHangover also the content type was application/octet-stream
– Midhun Kumar
Nov 26 '18 at 9:33
stackoverflow.com/a/31256247/4984832
– SushiHangover
Nov 21 '18 at 11:46
stackoverflow.com/a/31256247/4984832
– SushiHangover
Nov 21 '18 at 11:46
But the same code was working previously. Nothing seems to have changed from any side.
– Midhun Kumar
Nov 23 '18 at 10:55
But the same code was working previously. Nothing seems to have changed from any side.
– Midhun Kumar
Nov 23 '18 at 10:55
Look at the returned headers and see if the content length is zero...
– SushiHangover
Nov 23 '18 at 14:51
Look at the returned headers and see if the content length is zero...
– SushiHangover
Nov 23 '18 at 14:51
@SushiHangover I checked the response header and it has content length property in it.
– Midhun Kumar
Nov 26 '18 at 9:27
@SushiHangover I checked the response header and it has content length property in it.
– Midhun Kumar
Nov 26 '18 at 9:27
@SushiHangover also the content type was application/octet-stream
– Midhun Kumar
Nov 26 '18 at 9:33
@SushiHangover also the content type was application/octet-stream
– Midhun Kumar
Nov 26 '18 at 9:33
add a comment |
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stackoverflow.com/a/31256247/4984832
– SushiHangover
Nov 21 '18 at 11:46
But the same code was working previously. Nothing seems to have changed from any side.
– Midhun Kumar
Nov 23 '18 at 10:55
Look at the returned headers and see if the content length is zero...
– SushiHangover
Nov 23 '18 at 14:51
@SushiHangover I checked the response header and it has content length property in it.
– Midhun Kumar
Nov 26 '18 at 9:27
@SushiHangover also the content type was application/octet-stream
– Midhun Kumar
Nov 26 '18 at 9:33