Question

我有单页输入docx模板文件，用户可以设计使用某些变量，例如contact_name。在使用OpenXml SDK + Open-Xml-PowerTools进行处理期间，我基于此模板创建了许多docx文件实例，并用实数值替换变量。最后我需要一个docx输出，所以我使用Open-Xml-PowerTools DocumentBuilder合并到一个docx中。

这似乎有效，直到用户将编号列表放入模板中。我原来的问题是编号列表继续合并后文档实例的编号，即列表中第二页上的数字是11-20而不是1-10，因为该文档认为它们都引用了相同的列表ID。

我设法通过确保文件正文中的num id是唯一的来解决这个问题，但现在列表的格式在第一页之外丢失，例如在第一页上，编号列表项是缩进的，但在第二页上，它们在页面上很难保留，就像它们不是正确的编号列表一样。似乎我需要更新样式和编号部分以使这些匹配的新数字匹配，但我无法使其正常工作。

我在ericwhite.com的论坛上发布了这个帖子，但我们没有听说过最新的问题（http://ericwhite.com/blog/forums/topic/list-numbering-on-merged-docs/）。

我最近解决此问题的尝试是在OpenXml-Power-Tools中抛出一个异常，所以我想我不想用新列表ID更新某些部分。有谁知道如何做到这一点？代码尝试如下，例外情况如下。

public bool Merge(List<InterchangeableWordProcessingDocument> inputFiles, string outputFilePath)
    {
        if (inputFiles == null)
        {
            logger.LogDebug("No files to merge.");
            return true;
        }
        try
        {

            List<OpenXmlPowerTools.Source> sources = new List<OpenXmlPowerTools.Source>();
            int highestListNumbering = 0;
            int highestAbstractListNumbering = 0;
            foreach (var inputFile in inputFiles)
            {
                //Sometimes merge puts start of next page onto end of previous one so prevent
                //Seems to cause extra blank page when there are labels so don't do on labels pages
                if (inputFile.DocType == DocType.Letter)
                {
                    using (var wordDoc = inputFile.GetAsWordProcessingDocument())
                    {
                        var para = wordDoc.MainDocumentPart.Document.Body.ChildElements.First<Paragraph>();

                        if (para.ParagraphProperties == null)
                        {
                            para.ParagraphProperties = new ParagraphProperties();
                        }

                        para.ParagraphProperties.PageBreakBefore = new PageBreakBefore();

                        //http://ericwhite.com/blog/forums/topic/list-numbering-on-merged-docs/
                        //Numberings should be unique to each page otherwise they continue from the previous
                        //Keep track of how many we have so we can add on to always have a unique number
                        var numIds = wordDoc.MainDocumentPart.Document.Body.Descendants<NumberingId>().ToList();

                        logger.LogDebug("Found " + numIds.Count + " num ids.");

                        foreach (var numId in numIds)
                            numId.Val += highestListNumbering;

                        var styleNumIds = wordDoc.MainDocumentPart.StyleDefinitionsPart.RootElement.Descendants<NumberingId>().ToList();

                        if (wordDoc.MainDocumentPart.StyleDefinitionsPart != null)
                        {

                            logger.LogDebug("Found " + styleNumIds.Count + " stlye num ids.");
                            foreach (var styleNumId in styleNumIds)
                                styleNumId.Val += highestListNumbering;
                        }

                        if (wordDoc.MainDocumentPart.NumberingDefinitionsPart != null)
                        {

                            var numberingNumIds = wordDoc.MainDocumentPart.NumberingDefinitionsPart.RootElement.Descendants<NumberingInstance>().ToList();

                            logger.LogDebug("Found " + numberingNumIds.Count + " numbering num ids.");
                            foreach (var numberingNumId in numberingNumIds)
                            {
                                numberingNumId.NumberID += highestListNumbering;
                                numberingNumId.AbstractNumId.Val += highestAbstractListNumbering;
                            }

                            var abstractNumberingNumIds = wordDoc.MainDocumentPart.NumberingDefinitionsPart.RootElement.Descendants<AbstractNumId>().ToList();

                            logger.LogDebug("Found " + abstractNumberingNumIds.Count + " abstract num ids." + wordDoc.MainDocumentPart.NumberingDefinitionsPart.RootElement.XName.LocalName);
                            foreach (var abstractNumberingNumId in abstractNumberingNumIds)
                                abstractNumberingNumId.Val += highestAbstractListNumbering;

                            //Keep the max nums up to date
                            if (abstractNumberingNumIds.Count > 0)
                                highestAbstractListNumbering = Math.Max(highestAbstractListNumbering, abstractNumberingNumIds.Max(ln => (ln.Val.HasValue ? ln.Val.Value : 0)));

                        }


                        if (numIds.Count > 0)
                            highestListNumbering = Math.Max(highestListNumbering, numIds.Max(ln => (ln.Val.HasValue ? ln.Val.Value : 0)));



                        wordDoc.MainDocumentPart.Document.Save();
                    }
                }
                sources.Add(new OpenXmlPowerTools.Source(inputFile.GetAsWmlDocument(), true));

            }
            DocumentBuilder.BuildDocument(sources, outputFilePath);
            return true;

        }
        catch (SystemException ex)
        {
            logger.LogError("Error occured while generating bereavement letters. ", ex);

            return false;
        }
        finally
        {
            foreach (var inputFile in inputFiles)
            {
                inputFile.Dispose();
            }
        }
    }

例外：

System.InvalidOperationException: Sequence contains no elements
at System.Linq.Enumerable.First[TSource](IEnumerable`1 source)
at OpenXmlPowerTools.DocumentBuilder.CopyNumbering(WordprocessingDocument sourceDocument, WordprocessingDocument newDocument, IEnumerable1 newContent, List1 images)
at OpenXmlPowerTools.DocumentBuilder.AppendDocument(WordprocessingDocument sourceDocument, WordprocessingDocument newDocument, List1 newContent, Boolean keepSection, String insertId, List1 images)
at OpenXmlPowerTools.DocumentBuilder.BuildDocument(List`1 sources, WordprocessingDocument output)
at OpenXmlPowerTools.DocumentBuilder.BuildDocument(List`1 sources, String fileName)
at BereavementMailing.TemplateEngine.Merge(List`1 inputFiles, String outputFilePath) in C:\caw\Underdog\Apps\Services\BereavementMailingEngine\BM_RequestProcessor\TemplateEngine.cs:line 508

Answer 1

看起来您在每次传递期间两次更新相同的AbstractNumId参考值。您需要更新AbstractNum定义id值。

NumberingPart XML中的参考值如下所示：

    <w:num w:numId="58">
        <w:abstractNumId w:val="2"/>
    </w:num>

你要两次更新。

abstractNumber定义如下所示：

<w:abstractNum w:abstractNumId="0"
               w15:restartNumberingAfterBreak="0">
    <w:nsid w:val="FFFFFF88"/>
    <w:multiLevelType w:val="singleLevel"/>
    <w:tmpl w:val="8EE6963C"/>
    <w:lvl w:ilvl="0">
        <w:start w:val="1"/>
        <w:numFmt w:val="decimal"/>
        <w:pStyle w:val="ListNumber"/>
        <w:lvlText w:val="%1."/>
        <w:lvlJc w:val="left"/>
        <w:pPr>
            <w:tabs>
                <w:tab w:val="num"
                       w:pos="360"/>
            </w:tabs>
            <w:ind w:left="360"
                   w:hanging="360"/>
        </w:pPr>
    </w:lvl>
</w:abstractNum>

尝试更改此部分：

<强>原始

var abstractNumberingNumIds = wordDoc.MainDocumentPart.NumberingDefinitionsPart.RootElement.Descendants<AbstractNumId>().ToList();

logger.LogDebug("Found " + abstractNumberingNumIds.Count + " abstract num ids." + wordDoc.MainDocumentPart.NumberingDefinitionsPart.RootElement.XName.LocalName);
foreach (var abstractNumberingNumId in abstractNumberingNumIds)
abstractNumberingNumId.Val += highestAbstractListNumbering;

//Keep the max nums up to date
if (abstractNumberingNumIds.Count > 0)
    highestAbstractListNumbering = Math.Max(highestAbstractListNumbering, abstractNumberingNumIds.Max(ln => (ln.Val.HasValue ? ln.Val.Value : 0)));

新

var abstractNums = wordDoc.MainDocumentPart.NumberingDefinitionsPart.RootElement.Descendants<AbstractNum>().ToList(); logger.LogDebug("Found " + abstractNums.Count + " abstract nums." + wordDoc.MainDocumentPart.NumberingDefinitionsPart.RootElement.XName.LocalName); foreach (var abstractNum in abstractNums) abstractNum.AbstractNumberId += highestAbstractListNumbering; //Keep the max nums up to date if (abstractNums.Count > 0) highestAbstractListNumbering = Math.Max(highestAbstractListNumbering, abstractNums.Select(a => a.AbstractNumberId).Max(n => n.HasValue ? n.Value : 0));

将docx文件合并为一个并保留编号列表格式

1 个答案: