使用OpenXML合并PowerPoint幻灯片

Question

我想使用OpenXML SDK将一些幻灯片合并到主幻灯片中，但我不想在服务器环境中使用Introp，因为这不是理想的选择。我尝试了许多代码示例，但合并后的演示文稿总是显示修复消息。当我将损坏的文件与修复后的文件进行比较时，发现ID未正确生成。是否有任何开源库或示例代码可用？我听说过Aspose，但它是一个付费库。

- Ali

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Java对你来说是一个选择吗？我已经使用pptx4j编写了一些代码来实现这个功能。你可以尝试使用IKVM，我猜... - JasonPlutext

Answer 1

微软的 MSDN 文章提供了逐步说明如何合并 PowerPoint 演示文稿的指南。文章确保 ID 唯一性，但唯一的缺点是每张幻灯片都会复制幻灯片母版，从而使最终 PowerPoint 文件比预期更大。请参考以下链接：http://msdn.microsoft.com/en-us/library/office/ee361883(v=office.12).aspx。

- Woffy

Answer 2

如果ID不唯一，您可能会遇到问题，下面是我正在使用的工作代码。 我知道这是旧线程，但以防万一有人在寻找答案，

public static void MergeSlides(string presentationFolder, string sourcePresentation, string destPresentation)
{
    int id = 0;

    // Open the destination presentation.
    using (PresentationDocument myDestDeck = PresentationDocument.Open(presentationFolder + destPresentation, true))
    {
        PresentationPart destPresPart = myDestDeck.PresentationPart;

        // If the merged presentation does not have a SlideIdList element yet, add it.
        if (destPresPart.Presentation.SlideIdList == null)
            destPresPart.Presentation.SlideIdList = new SlideIdList();

        // Open the source presentation. This will throw an exception if the source presentation does not exist.
        using (PresentationDocument mySourceDeck = PresentationDocument.Open(presentationFolder + sourcePresentation, false))
        {
            PresentationPart sourcePresPart = mySourceDeck.PresentationPart;

            // Get unique ids for the slide master and slide lists for use later.
            uniqueId = GetMaxSlideMasterId(destPresPart.Presentation.SlideMasterIdList);

            uint maxSlideId = GetMaxSlideId(destPresPart.Presentation.SlideIdList);

            // Copy each slide in the source presentation, in order, to the destination presentation.
            foreach (SlideId slideId in sourcePresPart.Presentation.SlideIdList)
            {
                SlidePart sp;
                SlidePart destSp;
                SlideMasterPart destMasterPart;
                string relId;
                SlideMasterId newSlideMasterId;
                SlideId newSlideId;

                // Create a unique relationship id.
                id++;
                sp = (SlidePart)sourcePresPart.GetPartById(slideId.RelationshipId);

                relId = sourcePresentation.Remove(sourcePresentation.IndexOf('.')) + id;

                // Add the slide part to the destination presentation.
                destSp = destPresPart.AddPart<SlidePart>(sp, relId);

                // The slide master part was added. Make sure the relationship between the main presentation part and
                // the slide master part is in place.
                destMasterPart = destSp.SlideLayoutPart.SlideMasterPart;
                destPresPart.AddPart(destMasterPart);

                // Add the slide master id to the slide master id list.
                uniqueId++;
                newSlideMasterId = new SlideMasterId();
                newSlideMasterId.RelationshipId = destPresPart.GetIdOfPart(destMasterPart);
                newSlideMasterId.Id = uniqueId;

                destPresPart.Presentation.SlideMasterIdList.Append(newSlideMasterId);

                // Add the slide id to the slide id list.
                maxSlideId++;
                newSlideId = new SlideId();
                newSlideId.RelationshipId = relId;
                newSlideId.Id = maxSlideId;

                destPresPart.Presentation.SlideIdList.Append(newSlideId);
            }

            // Make sure that all slide layout ids are unique.
            FixSlideLayoutIds(destPresPart);
        }

        // Save the changes to the destination deck.
        destPresPart.Presentation.Save();
    }
}

   public static void FixSlideLayoutIds(PresentationPart presPart)
    {
        //Need to make sure all slide layouts have unique ids
        foreach (SlideMasterPart slideMasterPart in presPart.SlideMasterParts)
        {
            foreach (SlideLayoutId slideLayoutId in slideMasterPart.SlideMaster.SlideLayoutIdList)
            {
                uniqueId++;
                slideLayoutId.Id = (uint)uniqueId;
            }
            slideMasterPart.SlideMaster.Save();
        }
    }

- G--

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缺少GetMaxSlideMasterId和GetMaxSlideId方法的定义。 - Emanuele Ciriachi

这些定义可能来自于这里：https://msdn.microsoft.com/en-us/library/office/ee361883(v=office.12).aspx - Jack Miller

Answer 3

尝试演示生成器代码，访问http://openxmldeveloper.org/。

- Yasindu