Tim Mackey's Weblog

Excellent! Thanks for posting this code.

Love your code !!!
Many thanks.

Just found this and the example looks excellent. When i open the project it complains that it cant find the progress bar.
Do i need to "install" it in some way. Sorry for a newb question but i am a newb.
Thanks

Hi Richard,
I tried downloading the sample code and I found the same thing. I re-built the solution in visual studio, and then opened the Form again, and it worked. I think the visual studio designer can't display components unless they have been built. My fault for not including all the binaries to make it work first time.

Thanks for pointing this out!
Good luck
Tim

Hi! Great Code!

How I Can get the name of the file uploaded in RunWorkerCompleted Event?

Hi Gileno,
It will be the same name as the file you uploaded. The server will not rename the file. you can pass in the name of the file to the RunWorkerAsync() event and then you can forward the same value with the return value of the backgroundworker. The class library explains it very well.
Good luck
tim

Hello! This post has been a lifesaver. However, I have a question. I've been rebuilding this example in VB.net, and everything's great...except I can't figure out how to add the FTPProgress component to the toolbox so that I can drag it onto my form.

hi ashley
Msdn2 has great instructions on using the VS toolbox:
http://msdn2.microsoft.com/en-us/library/ms165355(VS.80).aspx

hope this helps
tim

how to upload multiple files using your example?
Bert

hi bert. just create an FtpProgress object for each transfer. then you can either start them all asynchronously at the same time, or you can queue them up and wait for each one to complete one at a time. i'll leave the implementation up to you because there are a hundred ways you can do it.
good luck
tim

I implemented a multi uploader from your solution. but there is new exception. ftpprogress gives timeout sometime. how can I handle this nicely ?

thanks

hi. there is a thread on this topic over on MSDN, the problem is explained but not resolved satisfactorily.
http://social.msdn.microsoft.com/Forums/en-US/netfxnetcom/thread/5d2b67e8-d9cb-4025-be1b-aa4379e8fa5a/
hope this helps
tim

I solved issue like this:
private void FtpProgress_DoWork(object sender, DoWorkEventArgs e)
{
while (true)
{
try
{
UploadFiles(sender, e);
break;
}
catch
{
continue;
}
}
}

I think its not the best way but it will try till upload everything thats is enough for me anyway :)
thanks for the code

I'm have a real problem with your code, tried it compiled in VS2005 and VS2008. I would really appreciate some help with as I love your work here. Here is the error I get, EVERYTIME at 21.79 MB through a text file.

System.Exception was unhandled by user code
Message="Error occurred during upload, too many retries. \nSystem.IO.IOException: Unable to write data to the transport connection: An established connection was aborted by the software in your host machine. ---> System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine\r\n at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)\r\n at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)\r\n --- End of inner exception stack trace ---\r\n at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)\r\n at System.Net.FtpDataStream.Write(Byte[] buffer, Int32 offset, Int32 size)\r\n at FTP_ProgressBar.FtpProgress.FtpProgress_DoWork(Object sender, DoWorkEventArgs e) in C:\\Documents and Settings\\awilliams\\Desktop\\FTP_ProgressBar(2)\\FTP_ProgressBar\\FtpProgress.cs:line 64"
Source="FTP_ProgressBar"
StackTrace:
at FTP_ProgressBar.FtpProgress.FtpProgress_DoWork(Object sender, DoWorkEventArgs e) in C:\Documents and Settings\awilliams\Desktop\FTP_ProgressBar(2)\FTP_ProgressBar\FtpProgress.cs:line 83
at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)


Again thank you, I would really appreciate some help.

so how should i resume the broken upload,shall i write a appln on the server side,or i should write a appln on remoting and send the same data using a port,which one is a better soln

hi karthik, the code has a built-in 'retry' feature, no need to write any other code, unless you want to be able to resume an upload after quitting the application (and the retry feature has reached its maximum). i would suggest you could modify the client app to start uploading at a specific offset, which could be retrieved by querying the size of a partially uploaded file on the server (web service?).
good luck
tim

hi tim,
it works ,but after quitting the program(client side) which is currently running,and start a new one.if
i quit my program on the client side the file i uploaded on the ftpserver machine got disappeared so its not possible for me to continue the upload further,so i must start it from the beginning itself.so evry time i close the exe and start it afresh and achieve my task,is it possible to upload without starting the exe again .why the file got disappeared when i close the exe in the client side.waiting for ur response.
karthik

hi karthik. the behaviour you have found is due to the internal design of the FtpWebRequest class and nothing i have control over. you could ask your question on a newsgroup as to why the class is designed that way.
best of luck
tim

Hi, Tim:

This comment is from your class
// send this chunk to the server. it is sent as a byte[] parameter, but the client and server have been configured to encode byte[] using MTOM.

How is the client and server configured for MTOM, is this in code, app.config?

hi eric. that was unintentional, thanks for pointing it out. i borrowed some of the code from an MTOM project i had been working on. it doesn't have to use MTOM, but you can turn it on if you want, via app.config and web.config. google MTOM or look up MSDN2 docs for full info.
best of luck
tim

Hi,

When I delete ftpProgress1 and then add another FtpProgress Object with name ftpProgress1

the progress bar is not working. Would you tell please tell me the reason for this. The reason why i'm asking is;
i have copied you files FtpProgress.cs , FtpProgress.Designer.cs and FtpProgress.resx into my project and i have copied all the necessary code also but
i cannot see any change in the progress bar during upload.

regards,

hi scarface. i would suggest studying the demo application and make sure that it works and that you understand how it works. then when you reproduce in your own app, if it doesn't work it's because you're doing something different than the demo app, i can't help you there. best of luck.
tim

Hi,

Could you point me to the right place to look for chmoding the file after is it uploaded?

Hello Tim,
Thanks for the post its very useful. i got it working. i would like to use the same application from a share point page. do you have any idea of how this can be done on a share point page. it would be grateful if i get any guidance on implementing this as a asp.net web site page. please give me some idea.
Thanks,
Naresh

Tank you, man.
I'm going crazy with this.

Hi
If anyone adapts this for downloading, please let me know.
It is a bit above my level of understanding how to do that for the progress bar object.
Regards
Christiaan

Thanks a lot.

Hi Tim,

I have test you code very intensive. There is one Problem.
When the Backgroundworker start, your Upload Button change to Cancel.
When I want cancel the upload it skip the code and go to else:

else if (e.Cancelled)
this.toolStripStatusLabel1.Text = ........
else
this.toolStripStatusLabel1.Text = ........

Have you a solution for it?

Greets Tony

Thanks good work!