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Merging Word DOCX Documents and Continue List Numbering using C# .NET

I am trying to merge 2 documents but could not get the list numbering to continue no matter what option i tried. I am following the example from https://reference.aspose.com/words/net/aspose.words/importformatoptions/properties/keepsourcenumbering and set KeepSourceNumbering = false.

Please see the sample docs here TestList.zip (20.4 KB)


We have logged this problem in our issue tracking system. Your ticket number is WORDSNET-22103. We will further look into the details of this problem and will keep you updated here on the status of the linked issue. We apologize for any inconvenience.

A post was split to a new topic: Merge Two Word Documents & Continue List Numbering (C# .NET)

The issues you have found earlier (filed as WORDSNET-22103) have been fixed in this Aspose.Words for .NET 21.6 update and this Aspose.Words for Java 21.6 update.


Regarding WORDSNET-22103, it is to inform you that we have introduced the following new public property into the ImportFormatOptions class:

The following use-case explains how to merge pasted lists with surrounding lists when adding one document to another:

Document srcDoc = new Document("C:\\TestList\\TestList1.docx");
Document dstDoc = new Document("C:\\TestList\\TestList.docx");
srcDoc.LastSection.PageSetup.LineNumberRestartMode = LineNumberRestartMode.Continuous;
ImportFormatOptions importFormatOptions = new ImportFormatOptions();
importFormatOptions.MergePastedLists = true;
dstDoc.AppendDocument(srcDoc, ImportFormatMode.UseDestinationStyles, importFormatOptions);
dstDoc.Save("C:\\TestList\\21.6 MergePastedLists true.docx");


This still don’t work with the new option. I need it to work with NodeImporter per https://reference.aspose.com/words/net/aspose.words/importformatoptions/properties/keepsourcenumbering, not the AppendDocument snippet that you have given


To continue numbering, you can simply assign the same list to the imported Paragraphs. Please check if the following code is acceptable for you?

Document srcDoc = new Document("C:\\temp\\TestList\\TestList1.docx");
Document dstDoc = new Document("C:\\temp\\TestList\\TestList.docx");

NodeImporter importer = new NodeImporter(srcDoc, dstDoc, ImportFormatMode.UseDestinationStyles);
foreach (Paragraph paragraph in srcDoc.FirstSection.Body.Paragraphs)
    Node importedNode = importer.ImportNode(paragraph, true);

Paragraph firstParagraph = dstDoc.FirstSection.Body.FirstParagraph;
Paragraph item = dstDoc.FirstSection.Body.Paragraphs[3];
while (item.IsListItem)
    item.ListFormat.List = firstParagraph.ListFormat.List;
    item = item.NextSibling as Paragraph;
    if (item == null)

dstDoc.Save("C:\\temp\\TestList\\output word.docx");