Reporting for ASP.NET Web Forms - Add PowerPoint Export Format in Web Document Viewer

The example adds a Power Point item to the list of available export formats in the Web Document Viewer and implements the custom ExportToPowerPoint method.

Note: The resulting document is exported by rasterizing each page to an image / slide (no native PowerPoint inner elements). This example uses the Microsoft.Office.Interop.PowerPoint library, which requires a local installation of PowerPoint. You can also implement a similar solution with any other library that supports PowerPoint document generation.

The CustomizeMenuActions event is handled to add a custom menu item.

The application registers a CustomOperationLogger class as the WebDocumentViewerOperationLogger service. The CustomOperationLogger class overrides the ExportDocumentStarting method to call the ExportToPowerPointmethod when the user initializes export to Power Point.

You have to install the Office Developer Tools for Visual Studio to build the project, and have a local Microsoft Office (PowerPoint) installation to run the project.

Files to Review

• CustomOperationLogger.cs (CustomOperationLogger.vb)
• Presentation.cs (CustomOperationLogger.vb)
• Global.asax.cs (Global.asax.vb)
• Viewer.aspx (Viewer.aspx)

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