OpenXml开发-向文档中插入图片

#region Insert Images
        public string InsertImage(XmlWriter writer, string imageType, string imageUrl)
        {
            // create the new image part
            if (File.Exists(imageUrl))
            {
                FileInfo fi = new FileInfo(imageUrl);
                Uri imageUri =
                    new Uri("/word/media/" + fi.Name,
                    UriKind.Relative);
                package.CreateNewPart(imageUri, imageType,
                    imageUrl);
                // create the relationship between the document and the image
                string ImageRelId = package.CreateInternalRelationship(
                    new Uri(@"/word/document.xml", UriKind.Relative),
                   imageUri, "http://schemas.openxmlformats.org/officeDocument/2006/relationships/image");
                InsertImage(writer, ImageRelId);
                return ImageRelId;
            }
            else return "";
        }
        /// <summary>
        ///
        /// </summary>
        /// <param name="writer"></param>
        /// <param name="imageType">"image/jpeg"</param>
        /// <param name="image"></param>
        public string InsertImage(XmlWriter writer, string imageId, string imageType, byte[] image)
        {
            // create the new image part
            Uri imageUri =
                new Uri("/word/media/" + imageId,
                UriKind.Relative);
            package.CreateNewPart(imageUri, imageType,
                image);
            // create the relationship between the document and the image
            string ImageRelId = package.CreateInternalRelationship(
                new Uri(@"/word/document.xml", UriKind.Relative),
               imageUri, "http://schemas.openxmlformats.org/officeDocument/2006/relationships/image");
            InsertImage(writer, ImageRelId);
            return ImageRelId;
        }

        public void InsertImage(XmlWriter writer, string imageId)
        {
            XmlDocument drawingXml = new XmlDocument();
            drawingXml.LoadXml(
                string.Format(Properties.Resources.DrawingTemplate,
                   imageId));
            writer.WriteStartElement(Prefixes.WordprocessingML, "p",
                Namespaces.WordprocessingML);
            writer.WriteStartElement(Prefixes.WordprocessingML, "r",
                Namespaces.WordprocessingML);
            drawingXml.DocumentElement.WriteContentTo(writer);
            writer.WriteEndElement();
            writer.WriteEndElement();
        }

#endregion

以下为调用方法

public static void Run()
        {
            PackageHelper package;
            WordprocessingDoc xmlDoc = new WordprocessingDoc();
            package = xmlDoc.Package;
            // load the document package part into an XmlDocument
            Uri documentUri =
                new Uri(@"/word/document.xml", UriKind.Relative);
            XmlDocument documentXml =
                package.GetWritablePart(documentUri);
            XPathNavigator documentNav = documentXml.CreateNavigator().SelectSingleNode("w:document/w:body/w:p", Namespaces.NamespaceManager);
            using (XmlWriter writer = documentNav.ReplaceRange(documentNav))
            {       
                xmlDoc.InsertImage(writer, "image/bmp", imgPath + "8.bmp");
                xmlDoc.InsertImage(writer, "image/bmp", imgPath + "9.bmp");
            }
            // write the document into the package part
            package.SavePart(documentUri, documentXml);
            // write the package to the a file
            package.Save(docPath + "CellReportTest.docx");        
        }