FileAttachmentController Class

A ViewController that provides the Download Action to download file attachments.

Namespace: DevExpress.ExpressApp.FileAttachments.Web

Assembly: DevExpress.ExpressApp.FileAttachment.Web.v18.2.dll

Declaration

public class FileAttachmentController :
    ObjectViewController,
    ISupportUpdate
Public Class FileAttachmentController
    Inherits ObjectViewController
    Implements ISupportUpdate

The FileAttachmentController Controller is activated in List and Detail Views when the FileAttachmentAttribute is applied to the current View's object type. The FileAttachmentAttribute.FileDataPropertyName parameter passed to the attribute specifies the IFileData type property that stores files to be downloaded by the FileAttachmentController's FileAttachmentController.DownloadAction:

IFileAttachmentWeb

To execute custom code when a file is downloaded, override the FileDataDownloader.DownloadCore method. For details, refer to the FileDataDownloader class description.

Implements

See Also