How to implement file download with AJAX and MVC

Question

I would like to provide a file download operation by using the jQuery AJAX call with some params under MVC

Example

(javascript)
function DoDownload(start         


        

Answer 1

You can use the File method of controller class to return a file back to the browser.

The below sample returns a pdf file.

public ActionResult GetFile(int id)
{
  var fileInfo=repositary.GetFileDedetails(id);
  var byteArrayOFFile=fileInfo.FileContentAsByteArray();
  return File(byteArrayOFFile,"application/pdf","yourFriendlyName.pdf");
}

Assuming repositary.GetFileDedetails method returns the details of the file from the id.

You may also return the file from a physical location(a path) or a stream. Check all the overloads of the File method and use appropriate one.

This has nothing to do with ajax. this is normal GET request over a browser.