c# - Couldn't Upload File ASP.NET MVC -


i'm trying create create model object page. i'm using asp.net mvc c#. in project i'm trying create library application has books , can add book application has picture. create controller this,

 [httppost]     public actionresult create([bind(exclude = "id,bringback,borrower,isborrowed")]book booktocreate, httppostedfilebase picture1)     {         try         {             if (picture1.contentlength > 0)             {                 var filename = path.getfilename(picture1.filename);                 var path = path.combine(server.mappath("~/app_data/pictures"), filename);                 picture1.saveas(path);             }              // todo: add insert logic here             _entities.addtolibrary(booktocreate);             _entities.savechanges();              return redirecttoaction("listbooks");         }         catch         {             return view();         }     }

and view this,

<%@ page language="c#" inherits="system.web.mvc.viewpage<mvcapplication2.models.book>" %>  <!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en"     "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">  <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>create</title> </head> <body> <% using (html.beginform(new { enctype = "multipart/form-data" }))    {%>     <%: html.validationsummary(true) %>      <fieldset>         <legend>fields</legend>          <div class="editor-label">             <%: html.labelfor(model => model.name) %>         </div>         <div class="editor-field">             <%: html.textboxfor(model => model.name) %>             <%: html.validationmessagefor(model => model.name) %>         </div>          <div class="editor-label">             <%: html.labelfor(model => model.author) %>         </div>         <div class="editor-field">             <%: html.textboxfor(model => model.author) %>             <%: html.validationmessagefor(model => model.author) %>         </div>          <div class="editor-label">             <%: html.labelfor(model => model.picture) %>         </div>         <div class="editor-field">             <%: html.textboxfor(model => model.picture) %>             <%: html.validationmessagefor(model => model.picture) %>         </div>         <input type='file' name='picture1' id='picture1' />         <p>             <input type="submit" value="create" />         </p>     </fieldset>  <% } %>  <div>     <%: html.actionlink("back list", "index") %> </div>

i have tried many things couldn't upload file. can do?

try getting posted file(s) request instead.

var picture1 = this.request.files["picture1"];

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