Programmatic method to extract file extension association with filters?

asked 2012-10-30 17:04:01 +0200

S. Lock
11 ● 1 ● 3

Hi, I'm using C# to automate LibreOffice to convert documents into PDFs via the export filters. Is there a nice programmatic way to assign the export filter to a particular file type extensions? Currently my code looks like this:

        switch (extension)
        {
            case ".doc":
            case ".docx":
            case ".txt":
            case ".rtf":
            case ".html":
            case ".htm":
            case ".xml":
            case ".odt":
            case ".wps":
            case ".wpd":
            case ".lwp":
                return "writer_pdf_Export";
            case ".xls":
            case ".xlsb":
            case ".xlsx":
            case ".ods":
                return "calc_pdf_Export";
            case ".ppt":
            case ".pptx":
            case ".odp":
                return "impress_pdf_Export";

            default:
                return null;
        }

Obviously LibreOffice supports much more file extension than that, but was wondering if there a way to extract it via code, rather than "hard coding" with a switch statement like this.