load image from sql server using mvc 5

Question

hi,plz i need help for loading image saved at sql server from MVC 5.

 i used to call $.ajax({ url: './cName '/OpenDocument/?id=' + dataRecord.DocumentID_PK, data: '', type: 'POST' });

and at controller: 

public byte[] GetImageFromDataBase(int Id)

{

var q = from temp in db.VwDocuments where temp.DocumentID_PK == Id select temp.DocumentContent;

byte[] cover = q.First();

return cover;

}

public FileResult OpenDocument(int id)

{

try

{

byte[] cover = GetImageFromDataBase(id);

if (cover != null)

{

//return File(cover, "image/jpg");

return File(cover,"application/octetstream", "elementary19240001");

}

else

{

return null;

}