OpenXML-在Word文档中搜索关键字

Question

在.Net中使用OpenXML-需要在Word文档中搜索特定的单词，并且它应该返回找到它的那一行，尝试这样做可以帮助任何人

    public static void OpenWordprocessingDocumentReadonly(string filepath)
    {
        // Open a WordprocessingDocument based on a filepath.
        using (WordprocessingDocument wordDocument =
            WordprocessingDocument.Open(filepath, false))
        {
            // Assign a reference to the existing document body.  
            Body body = wordDocument.MainDocumentPart.Document.Body;

        }
    }