C# .NET - WebClient error
Asked By Ganesan BalaKrishnan
10-May-10 05:43 AM
I am using C#, ASP.net version 1.1. I have the following code using a webclient
in an attempt to ftp a file to my server.
System.Net.WebClient webClient = new System.Net.WebClient();
System.Net.NetworkCredential networkCredential = new System.Net.NetworkCredential("username","password");
webClient.Credentials = networkCredential;
webClient.UploadFile("ftp://michaelrparker.biz/PerlFiles/" + fi.Name.ToString(),fi.FullName);
I am getting an error that The URI prefix is not recognized.
How to resolve this error?
Phivos Stylianides replied to Ganesan BalaKrishnan
This error only appears in version 1.1. If you use the same code with a newer version you will see that the error is gone. If you have to use this framework version you should use Sockets to connect to the server, it involves more code but it will work.
Anand Malli replied to Ganesan BalaKrishnan
Hi Ganesan,
As fas .NET framework 1.1 is concern It's not able to identify FTP as valid protocol for WebClient class. So you can't use WebClient for uploading file on FTP, If your application is targeting framework ver 1.1 .
Options:
1) Upgrade your application to framework 2.0 (Recommended option).
2) Use conventional method from early C/C++ days, Create Socket for your FTP address & upload your file using Socket.
Let me know if you face any difficulties while implementation....:)
transfer folder from one ftp server to the other ftp server. . . . You can try using webclient class. . . WebClient wc = new WebClient(); wc.Credentials = new NetworkCredential ("username", "password"); wc.UploadFile(" ftp: / / 1.23.153.248 / ftp.bmp ", @"C: \ Documents and Settings Is your ftp public? if no you should define credentials like this wc.Credentials = new NetworkCredential ("username", "password"); before sending file, and try to remove d: from ftp path. ftp clients don't have to know where on server files should be saved. . . shortly try this WebClient wc = new WebClient(); wc.Credentials = new NetworkCredential ("username", "password"); wc.UploadFile("ftp: / / 1.23.153.248 / ftp.bmp
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