asp.net mvc - Why can't save image to database in this way? -

i want save image , other information databse in asp.net mc3 project. i've saved image database before , worked. code in controller this:

public actionresult savetodb() {     if (request.files.count > 0 && request.files[0] != null)         {              httppostedfilebase file = request.files[0];              var path = path.combine(server.mappath("~/content/image"), file.filename);               file.saveas(path);              byte[] buffer = system.io.file.readallbytes(path);              myad.adimage = buffer;              storedb.addtoads(myad);              storedb.savechanges();         }         return view();           } } 

now changed table , want save other information more image database. code this:

 public actionresult savetodb(advertiseview model)  {      if (request.files.count > 0 && request.files[0] != null)      {          httppostedfilebase file = request.files[0];          var path = path.combine(server.mappath("~/content/image"), file.filename);          file.saveas(path);          byte[] buffer = system.io.file.readallbytes(path);          myad.adimage = buffer;      }      myad.adtitle = model.adtitle;      myad.adcontext = model.context;      myad.adscope = model.scope;      storedb.addtoads(myad);      storedb.savechanges();      return view(); } 

there isn't problem other infos image cant saved. understand

request.files.count 

return 0. don't know should now. can me please? alot.

i'd use view model.

let's suppose have domain model first:

public class mydomainmodel {     public byte[] adimage { get; set; }     public string description { get; set; } } 

then define view model:

public class myviewmodel {     [required]     public httppostedfilebase file { get; set; }      [datatype(datatype.multilinetext)]     public string description { get; set; } } 

a controller:

public class homecontroller : controller {     public actionresult index()     {         return view(new myviewmodel());     }      [httppost]     public actionresult index(myviewmodel model)     {         if (!modelstate.isvalid)         {             return view(model);         }          // todo: move mapping logic          // mapping layer avoid polluting controller         // recommend automapper purpose         // http://automapper.org/         using (var stream = new memorystream())         {             model.file.inputstream.copyto(stream);             var image = stream.toarray();             var domainmodel = new mydomainmodel             {                 adimage = image,                 description = model.description             };              // todo: persist domain model passing method             // on dal layer         }          return content("thanks submitting");     } } 

and once recommended refactoring complete:

public class homecontroller : controller {     public actionresult index()     {         return view(new myviewmodel());     }      [httppost]     public actionresult index(myviewmodel model)     {         if (!modelstate.isvalid)         {             return view(model);         }          mydomainmodel domainmodel = mapper.map<myviewmodel, mydomainmodel>(model);          // todo: persist domain model passing method         // on dal layer          return content("thanks submitting");     } } 

and view allow user upload file:

@using (html.beginform(null, null, formmethod.post, new { enctype = "multipart/form-data" })) {     <div>         @html.labelfor(x => x.description)         @html.editorfor(x => x.description)     </div>      <div>         @html.labelfor(x => x.file)         @html.textboxfor(x => x.file, new { type = "file" })         @html.validationmessagefor(x => x.file)     </div>         <button type="submit">ok</button> }