Export (0) Print
Expand All

Controller.File Method (Stream, String)

Creates a FileStreamResult object by using the Stream object and content type.

Namespace:  System.Web.Mvc
Assembly:  System.Web.Mvc (in System.Web.Mvc.dll)

'Declaration
Protected Friend Function File ( _
	fileStream As Stream, _
	contentType As String _
) As FileStreamResult
'Usage
Dim fileStream As Stream
Dim contentType As String
Dim returnValue As FileStreamResult

returnValue = Me.File(fileStream, _
	contentType)

Parameters

fileStream
Type: System.IO.Stream
The stream to send to the response.
contentType
Type: System.String
The content type (MIME type).

Return Value

Type: System.Web.Mvc.FileStreamResult
The file-content result object.

The result object that is prepared by this method is written to the response by the ASP.NET MVC framework when the object is executed. The MediaTypeNames class can be used to get the MIME type for a specific file name extension.

A Visual Studio project with source code is available to accompany this topic: Download.

The following example shows how to display an image file in a browser.

Public Function ShowFile(ByVal id As String) As ActionResult 
    Dim fd As fileDetail = getFileDetails(id) 
    Return File(fd.fileBytes, fd.mimeType) 
End Function
Show:
© 2014 Microsoft