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Controller.File Method (Byte(), String)

.NET Framework 4

Creates a FileContentResult object by using the file contents and file type.

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

'Declaration
Protected Friend Function File ( _
	fileContents As Byte(), _
	contentType As String _
) As FileContentResult

Parameters

fileContents
Type: System.Byte()
The binary content to send to the response.
contentType
Type: System.String
The content type (MIME type).

Return Value

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

The result object that is prepared by this method is written to the response by the 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 ShowFileDLN(ByVal id As String) As ActionResult 
    Dim fd As FileDetail = GetFileDetails(id) 
    Return File(fd.fileBytes, fd.mimeType, id) 
End Function

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