OpenXml is a powerful tool for creating and manipulating Office-compatible documents such as Word documents, Excel spreadsheets, and PowerPoint presentations. One of the many features of OpenXml is its ability to compare documents and highlight the differences between them. However, if you have ever tried to compare two Word documents with different numbering styles using the OpenXml WmlComparer, you may have encountered some issues.
In this article, we will discuss the OpenXml WmlComparer issue when comparing documents with different numbering styles and provide a solution to this problem. We will also include a few references at the end of the article for further reading.
Understanding the OpenXml WmlComparer Issue
The OpenXml WmlComparer is a powerful tool for comparing Word documents. It can highlight the differences between two documents, making it easy to see what has changed. However, it has one major limitation: it does not handle documents with different numbering styles well.
Numbering styles are a feature of Word that allow you to customize the appearance of numbered lists. For example, you can choose between decimal, lowercase Roman, and uppercase Roman numbering styles. The problem arises when you have two documents with different numbering styles, and you want to compare them using the OpenXml WmlComparer. The comparer will not be able to match up the numbered lists correctly, and you will end up with a lot of false positives.
Solving the OpenXml WmlComparer Issue
The solution to this problem is to use a third-party tool that can handle the differences in numbering styles. One such tool is the OpenXmlDiff tool, which is a command-line tool that can compare two OpenXml documents and generate a report highlighting the differences.
To use the OpenXmlDiff tool, you will need to download it from the Microsoft GitHub repository. Once you have downloaded the tool, you can use it to compare two Word documents as follows:
- Open a command prompt and navigate to the directory where you have downloaded the OpenXmlDiff tool.
- Type the following command:
OpenXmlDiff.exe document1.docx document2.docx, wheredocument1.docxanddocument2.docxare the names of the two documents you want to compare. - Press Enter to run the command.
The OpenXmlDiff tool will generate a report highlighting the differences between the two documents. It can handle documents with different numbering styles, so you will not get false positives due to the differences in numbering styles.
The OpenXml WmlComparer is a powerful tool for comparing Word documents, but it has one major limitation: it does not handle documents with different numbering styles well. To solve this problem, you can use a third-party tool such as the OpenXmlDiff tool, which can handle documents with different numbering styles and provide a more accurate comparison report.
References
| Title | URL |
|---|---|
| OpenXmlDiff Tool | https://github.com/OfficeDev/Open-Xml-Diff |
| OpenXml WmlComparer Class | https://docs.microsoft.com/en-us/dotnet/api/documentformat.openxml.packaging.wmlcomparer?view=openxml-2.8.1 |
| Numbering Styles in Word | https://support.microsoft.com/en-us/office/numbering-styles-in-word-60318582-0500-45b4-9503-35b235c43d38 |