Stream file using ASP NET MVC FileContentResult in a browser with a name

Question

Is there a way to stream a file using ASP NET MVC FileContentResult within the browser with a specific name   I have noticed that you can either have a FileDialog  Open Save  or you can stream the file in a browser window  but then it will use the ActionName when you try to save the file   I have the following scenario   byte   contents   DocumentServiceInstance CreateDocument orderId  EPrintTypes Quote   result   File contents   application pdf   String Format  Quote 0  pdf   orderId      When I use this  I can stream the bytes  but a OPEN SAVE file dialog is given to the user  I would like to actually stream this file in a browser window   If I just use the FilePathResult  it shows the file in a browser window  but then when I click on  Save  button to save the file in PDF  it shows me the Action Name as the name of the file   Has anyone encountered this

User · Answer

public FileContentResult GetImage int productId          Product prod   repository Products FirstOrDefault p   gt  p ProductID    productId         if  prod    null              return File prod ImageData  prod ImageMimeType            else             return null

User · Answer

Previous answers are correct  adding the line     Response AddHeader  Content-Disposition    inline  filename  filename          will causing multiple Content-Disposition headers to be sent down to the browser  This happens b c FileContentResult internally applies the header if you supply it with a file name  An alternative  and pretty simple  solution is to simply create a subclass of FileContentResult and override its ExecuteResult   method  Here s an example that instantiates an instance of the System Net Mime ContentDisposition class  the same object used in the internal FileContentResult implementation  and passes it into the new class   public class FileContentResultWithContentDisposition   FileContentResult       private const string ContentDispositionHeaderName    Content-Disposition        public FileContentResultWithContentDisposition byte   fileContents  string contentType  ContentDisposition contentDisposition            base fileContents  contentType                   check for null or invalid ctor arguments         ContentDisposition   contentDisposition             public ContentDisposition ContentDisposition   get  private set         public override void ExecuteResult ControllerContext context                   check for null or invalid method argument         ContentDisposition FileName   ContentDisposition FileName    FileDownloadName          var response   context HttpContext Response          response ContentType   ContentType          response AddHeader ContentDispositionHeaderName  ContentDisposition ToString             WriteFile response             In your Controller  or in a base Controller  you can write a simple helper to instantiate a  FileContentResultWithContentDisposition and then call it from your action method  like so   protected virtual FileContentResult File byte   fileContents  string contentType  ContentDisposition contentDisposition        var result   new FileContentResultWithContentDisposition fileContents  contentType  contentDisposition       return result     public ActionResult Report            get a reference to your document or file        in this example the report exposes properties for        the byte   data and content-type of the document     var report           return File report Data  report ContentType  new ContentDisposition           Inline   true          FileName   report FileName             Now the file will be sent to the browser with the file name you choose and with a content-disposition header of  inline  filename  filename     I hope that helps

User · Answer

public ActionResult Index         byte   contents   FetchPdfBytes        return File contents   application pdf    test pdf        and for opening the PDF inside the browser you will need to set the Content-Disposition header   public ActionResult Index         byte   contents   FetchPdfBytes        Response AddHeader  Content-Disposition    inline  filename test pdf        return File contents   application pdf

User · Answer

The absolute easiest way to stream a file into browser using ASP NET MVC is this   public ActionResult DownloadFile         return File   c  path to somefile pdf    application pdf    Your Filename pdf        This is easier than the method suggested by  azarc3 since you don t even need to read the bytes   Credit goes to  http   prideparrot com blog archive 2012 8 uploading and returning files how to return a file as response     Edit     Apparently my  answer  is the same as the OP s question  But I am not facing the problem he is having  Probably this was an issue with older version of ASP NET MVC

User · Answer

Actually  the absolutely easiest way is to do the following     byte   content   your byte     FileContentResult result   new FileContentResult content   application octet-stream        FileDownloadName    your file name      return result

User · Answer

This might be helpful for whoever else faces this problem  I finally figured out a solution  Turns out  even if we use the inline for  content-disposition  and specify a file name  the browsers still do not use the file name  Instead browsers try and interpret the file name based on the Path URL   You can read further on this URL  Securly download file inside browser with correct filename  This gave me an idea  I just created my URL route that would convert the URL and end it with the name of the file I wanted to give the file  So for e g  my original controller call just consisted of passing the Order Id of the Order being printed  I was expecting the file name to be of the format Order 0  pdf where  0  is the Order Id  Similarly for quotes   I wanted Quote 0  pdf   In my controller  I just went ahead and added an additional parameter to accept the file name  I passed the filename as a parameter in the URL Action method   I then created a new route that would map that URL to the format  http   localhost ShoppingCart PrintQuote 1054 Quote1054 pdf    routes MapRoute       controller   action   orderId   fileName                    new   controller    ShoppingCart   action    PrintQuote                      new string      x x x Controllers                      This pretty much solved my issue  Hoping this helps someone   Cheerz  Anup

[asp.net-mvc] Stream file using ASP.NET MVC FileContentResult in a browser with a name?

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