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  [Collapse]DevExpress.XtraPdfViewer
   [Collapse]IPdfViewerCommandFactoryService Interface
     IPdfViewerCommandFactoryService Members
    [Expand]IPdfViewerCommandFactoryService Methods
   [Expand]PdfAnnotationDeletingEventArgs Class
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 End-User Documentation

IPdfViewerCommandFactoryService Interface

A service which is used to create PDF Viewer commands.

Namespace:DevExpress.XtraPdfViewer
Assembly:DevExpress.XtraPdfViewer.v17.2.dll

Expanded Syntax

Expanded Remarks

All commands in the PdfViewer are created using the command factory service. You can substitute the default command factory service with its descendant, designed to create a custom command instead of the default command. Subsequently, the specified custom command is used in all PDF Viewer operations instead of the original command.

Expanded Example

Show Me

A complete sample project is available in the DevExpress Code Examples database at http://www.devexpress.com/example=T328206.

This example shows how to modify the functionality of an existing PdfViewer command.

The PdfViewer exposes the IPdfViewerCommandFactoryService interface that enables you to substitute the default command with your own custom command.

To accomplish this task:

  • Create a custom command class (e.g., a CustomNextPageCommand class), inherited from the command that you wish to replace (e.g., PdfNextPageCommand).
  • Override the required method of the command. The main functionality and command specifics are located in the Execute method.
  • Create a class (e.g., CustomPdfViewerCommandFactoryService) implementing the IPdfViewerCommandFactoryService. You should override the CreateCommand method to create an instance of a custom command class if an identifier of a certain command is passed as a parameter. So, instead of the default command, a custom command will be used by the PdfViewer.
  • Use the created class to substitute for the default PdfViewer's service.

Expanded Inheritance Hierarchy

Expanded See Also

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