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#1 Posted : Tuesday, November 21, 2017 5:15:03 PM(UTC)


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The DocumentWriter object contains static classes which can be used to obtain information about documents. The DocumentWriter.GetFormatFileExtension() and DocumentWriter.GetFormatFriendlyName() methods can be used to obtain, respectively, the default extension and a user-friendly name for the specified format.

The expected parameter is a value in the DocumentFormat enumeration. It is important to note that DocumentFormat.User is a special case and only used under specific circumstances. As such, it is not a valid value to be used with either of these methods and an exception will be generated if so. For more information see the documentation.


         string extension = DocumentWriter.GetFormatFileExtension(DocumentFormat.Docx);
         string friendlyName = DocumentWriter.GetFormatFriendlyName(DocumentFormat.Docx);

This value of "extension" and "friendlyName" would be "docx" and "Microsoft Word" for this code snippet.

Here's one in which all extensions and friendly names can be printed to the console.


         DocumentFormat[] docFormats = (DocumentFormat[])Enum.GetValues(typeof(DocumentFormat));
         for (int i = 0; i < docFormats.Length; i++)
            if (docFormats[i] == DocumentFormat.User)
            string extension = DocumentWriter.GetFormatFileExtension(docFormats[i]);
            string friendlyName = DocumentWriter.GetFormatFriendlyName(docFormats[i]);

            Console.WriteLine("DocumentFormat:\t" + Enum.GetName(typeof(DocumentFormat), docFormats[i]).PadRight(8) + "\tExtension: " + extension + "\tFriendlyName: " + friendlyName);

Edited by moderator Friday, December 22, 2017 3:55:36 PM(UTC)  | Reason: Not specified

Nick Crook
Developer Support Engineer
LEAD Technologies, Inc.

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