c# - Is it possible to POST a file and some data in the same call to a webservice? -

i webservice able take username , binary file parameter in same call it. possible?

i thought use webclient.credentials , set username way, doesnt seem working

the simplest way turn binary data base64 string. string can transmitted passing parameter or inside xml string.

web service method:

now depending on size files, incur performance loss, not substantial one.

to convert byte array base64 string:

byte[] data = getsomedata(...);//whatever use byte array. string sdata = system.convert.tobase64string(data ); 

i choose method on webclient.fileupload() because have more control , more options. rather post page, can send additional information file, usernames, passwords etc. if put them neat xml file.

[webmethod] public bool submitfile(string username, string file) { } 

or

[webmethod] public bool submitfile(string data) { } 

where data be:

<data>  <authentication>    <username></username>    <password></password>  </authentication>  <files>    <file>      <!-- base64 string goes here -->    </file>  </files> </data> 

you can choose keep file byte array, , pass that, i'm fan of using xml in webservices, including file inside xml snippet (easier log , record soap information).

 [webmethod]     public void putfile(byte[] buffer, string filename, string username) {         binarywriter binwriter = new binarywriter(file.open(server.mappath(filename),            filemode.createnew, fileaccess.readwrite));         binwriter.write(buffer);         binwriter.close();     } 

webclient.fileupload method.

you want use cookies here. need somehow authenticate server (if go route) or @ least have username cookie server understand.

when send file, make sure have appropriate cookie going along file server knows do.

an example : http://www.codeproject.com/kb/cs/uploadfileex.aspx