public override IParagraph Add()
        {
            OpenXmlSdk.Paragraph openXmlParagraph = new OpenXmlSdk.Paragraph();
            _textDocument.InnerObject.MainDocumentPart.Document.Body.Append(openXmlParagraph);

            OpenXmlSdkParagraph paragraph = new OpenXmlSdkParagraph(_textDocument, openXmlParagraph);

            if (paragraph != null)
            {
                Add(paragraph);
            }

            return paragraph;
        }
 internal OpenXmlSdkRangeCollection(OpenXmlSdkParagraph paragraph)
 {
     _paragraph = paragraph;
 }