Question

I have a javascript function from which I need to call a controller action to return the filestream to the UI .
I am not getting the open,save and save as dialog box.
In the cshtml file I have following function:DownloadFile

var selectUrl = '@Url.Action("Download", "Controller")' + "/" + filedetails; 
$.post(selectUrl);

and in the controller I have the following code:

public ActionResult Download(string id)
return File(downloadStream, "application/octet-stream",fileName);

Please let me know is this the correct way of calling.

Answer 1

try this way :ActionResult

 public ActionResult Download(string id) 
    {
          var cd = new System.Net.Mime.ContentDisposition
                    {

                        FileName = "imagefilename",
                        Inline = false,
                    };
        Response.AppendHeader("Content-Disposition", cd.ToString());
        string contentType = "application/octet-stream";
          // you are downloadStream
        return File(downloadStream, contentType);
    }

link here