c# - Send post data with file upload AJAX -

i sending file via ajax this:

var fd = new formdata();      //do stuff adds files      var xhr = new xmlhttprequest();     xhr.open('post', '/upload/' + id);     xhr.send(fd); 

and using file in contoller like:

httppostedfilebase file = request.files[i]; 

this works fine want send more information. how can post more variables along file?

use variable name in xhr.send(). xhr.send(var1=fd&var2=anotherdata). @ server side create 2 post data handlers, namely var1 & var2. 1 hold fd , other hold data.