如何增加发送到ADO.Net Data Services的数据大小？

I have a data service that takes a byte array. I then have a web page that attempts to send a file to that data service. If the file is small (say 50kb) then everything functions as expected, however if the file is large (anything over 100kb) I get a "BadRequest" error message on the save change call for the data service.I have a data service that takes a byte array.