c# - HttpPostedFileBase is Null Every Time -

i saw many questions , searched through other cases on stackoverflow answer why case , none of them applied. can see correct far. name file input tag same variable name on create method in controller. added enctype form. see below:

html:

@using (html.beginform(new { enctype = "multipart/form-data" })) {     @html.antiforgerytoken()      <div class="form-horizontal">         <p><input type="file" name="file" id="file" /></p>         <p><input type="submit" value="update" class="btn btn-default" /></p>     </div> } 

controller:

[httppost]     [validateantiforgerytoken]     public actionresult create(httppostedfilebase file) // it's null     {         if (modelstate.isvalid)         {             io io = new io();             if (file != null)             {                 updatelog updatelog = io.updateit(file);                 db.updatelogs.add(updatelog);                 db.savechanges();             } else             {                 return redirecttoaction("create");             }               return redirecttoaction("index");         }          return view();     } 

i discovered html.beginform method requires 3 arguments in cshtml. had manually specify method , controller.

@using (html.beginform("create", "updatelogs", formmethod.post, new { enctype = "multipart/form-data" }))