D365 Fin & Ops : ZIP, Compress & Archive multiple files using X++ & class ZipArchiveEntry

Requirement : The requirement is to create a zip file from a set of document entries available in document handling, creating a download link and sends the link to user browser.

In this requirement we are using Microsoft Dynamics 365 for finance and operations classes – documentmanagement, ziparchive & ziparchiveentry.

Sample Code :

class RunnableClassZIP
    /// <summary>
    /// Runs the class with the specified arguments.
    /// </summary>
    /// <param name = "_args">The specified arguments.</param>
    public static void main(Args _args)
        System.IO.Stream fileStream;
        System.IO.MemoryStream zipArchiveStream = new System.IO.MemoryStream();
        DocuRef docuRef;
        DocuValue docuValue;
        const str extensionZip = '.zip';
        const str zipFileName = 'myZipfile';
        using (System.IO.Compression.ZipArchive zipArchive = new System.IO.Compression.ZipArchive(
            while select docuRef
                join docuValue
            where docuValue.RecId   == docuRef.ValueRecId
            && docuRef.RefTableId   == 'your table id'
            && docuRef.RefRecId     == 'your rec id'
                // Creates the file entry in the zip folder.
                System.IO.Compression.ZipArchiveEntry fileEntry = zipArchive.CreateEntry(docuValue.filename());
                // Opens the created file entry and copies the binary file information of the original file to the file entry in the zip folder.
                using (System.IO.Stream fileEntryStream = fileEntry.Open())
                    // Gets the file stream of the document attachment.
                    fileStream = DocumentManagement::getAttachmentStream(docuRef);

            // Send a download link of the created zip folder to the user.
            File::SendFileToUser(zipArchiveStream, zipFileName + extensionZip);


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