jquery - MVC4 Post Form with Image64 -

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i'm trying post generated image not in ajax. problem param set null @ server side.

here action : 

    [httppost]     public actionresult downloadimagedirect(string dataurl)     {         var url = dataurl.tostring().substring(dataurl.tostring().indexof(",") + 1);         var image = convert.frombase64string(url);         return base.file(image, "image/png", "pere_noel.png");     }

here form : 

<form id="imgdownload" target="_blank" action="/home/downloadimagedirect" method="post">     <input type="hidden" id="dataurl" /> </form>

and here javascript : 

yesbutton.on('tap click', function () {             var finalurl = mykineticjsgroup.todataurl({                  x: centerelem(rect.getwidth(), cadreimg).x,                 y: centerelem(rect.getheight(), cadreimg).y,                 width: centerelem(rect.getwidth(), cadreimg).width,                 height: centerelem(rect.getheight(), cadreimg).height,             });              $("#dataurl").val(finalurl);             $("#imgdownload").submit();         });

can me ?

in mvc default data binding done name attribute, give <input type="hidden" id="dataurl" /> name attribute shown below :-

<input type="hidden" id="dataurl" name="dataurl" />

and rest of controller action code fine.


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