How to get data directly from Request.form.file[0] instead of copying

Question

I work on c# 7 I face issue I can't get data from file Request.form.file[0]  directly 

it must copying to server to get data from it 
so can i get data from variable DisplayFileName 

instead of get data from input path after copying to server

//step1 get file from angular
         var DisplayFileName = Request.Form.Files[0];