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   [Collapse]FileAttachmentController Class
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     FileAttachmentController Constructor
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 End-User Documentation
This documentation page describes implementations made in our v17.2 release cycle. To learn about functionality shipping with v18.1, navigate to our updated help file experience at docs.devexpress.com. Learn More

FileAttachmentController Class

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

Namespace:DevExpress.ExpressApp.FileAttachments.Web
Assembly:DevExpress.ExpressApp.FileAttachment.Web.v18.1.dll

Expanded Syntax

Expanded Remarks

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 DownloadAction:

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

Expanded Inheritance Hierarchy

System.Object
    System.MarshalByRefObject
       System.ComponentModel.Component
          Controller
             ViewController
                ViewController<ObjectView>
                   ObjectViewController
                      FileAttachmentController

Expanded See Also

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