如何将图像插入 OpenXML Word 文档的标题？

Question

我的 OpenXML Word 文档生成项目需要文本、表格和图像。但首先，我需要一个带有徽标（图像）的文档标题。

我使用 Microsoft 示例来创建页眉和页脚 Generating Documents with Headers and Footers in Word 2007 by Using the Open XML SDK 2.0 for Microsoft Office，文本标题工作得很好，但图像显示在标题中，带有损坏的图像图标、大小正确的边框和消息“此图像当前无法显示”。另外，我可以将所选图像加载到文档正文中。下面是我创建 ImagePart 的方法：

// Create AG logo part.
_agLogoPart = mainDocumentPart.AddImagePart(ImagePartType.Jpeg);
using (FileStream stream = new FileStream(_agLogoFilename, FileMode.Open))
{
    _agLogoPart.FeedData(stream);
}
_agLogoRel = mainDocumentPart.GetIdOfPart(_agLogoPart);

图像使用 LoadImage 方法加载，源自 Microsoft 示例，但添加了宽度和高度参数，并返回一个绘图对象：

private static Drawing LoadImage(string relationshipId,
                             string filename,
                             string picturename,
                             double inWidth,
                             double inHeight)
{
double emuWidth = Konsts.EmusPerInch * inWidth;
double emuHeight = Konsts.EmusPerInch * inHeight;

var element = new Drawing(
    new DW.Inline(
    new DW.Extent { Cx = (Int64Value)emuWidth, Cy = (Int64Value)emuHeight },
    new DW.EffectExtent { LeftEdge = 0L, TopEdge = 0L, RightEdge = 0L, BottomEdge = 0L },
    new DW.DocProperties { Id = (UInt32Value)1U, Name = picturename },
    new DW.NonVisualGraphicFrameDrawingProperties(
    new A.GraphicFrameLocks { NoChangeAspect = true }),
    new A.Graphic(
    new A.GraphicData(
    new PIC.Picture(
    new PIC.NonVisualPictureProperties(
    new PIC.NonVisualDrawingProperties { Id = (UInt32Value)0U, Name = filename },
    new PIC.NonVisualPictureDrawingProperties()),
    new PIC.BlipFill(
    new A.Blip(
    new A.BlipExtensionList(
    new A.BlipExtension { Uri = "{28A0092B-C50C-407E-A947-70E740481C1C}" }))
    {
    Embed = relationshipId,
    CompressionState = A.BlipCompressionValues.Print },
    new A.Stretch(
    new A.FillRectangle())),
    new PIC.ShapeProperties(
    new A.Transform2D(
    new A.Offset { X = 0L, Y = 0L },
    new A.Extents { Cx = (Int64Value)emuWidth, Cy = (Int64Value)emuHeight }),
    new A.PresetGeometry(
    new A.AdjustValueList()) { Preset = A.ShapeTypeValues.Rectangle })))
    {
        Uri = "http://schemas.openxmlformats.org/drawingml/2006/picture"
    }))
    {
        DistanceFromTop = (UInt32Value)0U,
        DistanceFromBottom = (UInt32Value)0U,
        DistanceFromLeft = (UInt32Value)0U,
        DistanceFromRight = (UInt32Value)0U,
        EditId = "50D07946"
    });
return element;
}

使用它，以下代码可以工作，将图像加载到我想要的正文中的任何位置：

Paragraph paraImage = new Paragraph(new Run(LoadImage(_genomeImageRel, _genomeImageFilename, "name" + _genomeImageRel, 7.5, 2.925)));
body.AppendChild(paraImage);

并且以下代码无法将徽标图像放在标题中：

private static Header GeneratePageHeaderPart(string headerText)
{
    Header hdr = new Header(new Paragraph(new Run(LoadImage(_agLogoRel, _agLogoFilename, "name" + _agLogoRel, 2.57, 0.73))));
    return hdr;
}

我怀疑我做错了一些非常微妙的事情，因为我可以在除标题之外的任何地方加载图像。谁能给点建议？

Answer 1

我怀疑我做错了一些非常微妙的事情，因为我可以 将图像加载到除标题之外的任何位置。

如果您能够在主文档中插入图像，您还可以使用此代码 (private static Drawing LoadImage) 在页眉或页脚中插入图像。

唯一的区别是在哪里添加ImagePart：

• 要在文档的正文中插入图片，您可以将ImagePart 添加到MainDocumentPart：

  _agLogoPart = mainDocumentPart.AddImagePart(ImagePartType.Jpeg);
  ...
   _agLogoRel = mainDocumentPart.GetIdOfPart(_agLogoPart);
  

• 要在标头中插入图像，您需要将ImagePart 添加到用于创建标头的HeaderPart

  _agLogoPart = headerPart.AddImagePart(ImagePartType.Jpeg);
  ...
  _agLogoRel = headerPart.GetIdOfPart(_agLogoPart);
  

• 要在页脚中插入图片，您需要将ImagePart 添加到用于创建页脚的FooterPart：

  _agLogoPart = footerPart.AddImagePart(ImagePartType.Jpeg);
  ...
  _agLogoRel = footerPart.GetIdOfPart(_agLogoPart);
  

---

相关：

• Insert picture to header of Word document with OpenXML

Answer 2

请尝试以下代码：

Bitmap image = new Bitmap(imagePath);
SdtElement controlBlock = doc.MainDocumentPart.HeaderParts.First().Header.Descendants<SdtElement>().Where
                                (r => r.SdtProperties.GetFirstChild<Tag>().Val == tagName).SingleOrDefault();
 //find the Blip element of the content control
 Blip blip = controlBlock.Descendants<Blip>().FirstOrDefault();

 //add image and change embeded id
 ImagePart imagePart = doc.MainDocumentPart.AddImagePart(ImagePartType.Jpeg);
 using (MemoryStream stream = new MemoryStream())
 {
      image.Save(stream, ImageFormat.Jpeg);
      stream.Position = 0;
      imagePart.FeedData(stream);
 }
 blip.Embed = doc.MainDocumentPart.GetIdOfPart(imagePart);

Answer 3

private static MainDocumentPart AddHeader(MainDocumentPart mainDocPart)
        {
            string LogoFilename = System.Web.Hosting.HostingEnvironment.MapPath("~/Content/Images/TemplateLogo.png");     
            mainDocPart.DeleteParts(mainDocPart.HeaderParts);
            var FirstHeaderPart = mainDocPart.AddNewPart<HeaderPart>();
            var DefaultHeaderPart = mainDocPart.AddNewPart<HeaderPart>();
            var imgPartFirst = FirstHeaderPart.AddImagePart(ImagePartType.Jpeg);           
            var imagePartFirstID = FirstHeaderPart.GetIdOfPart(imgPartFirst);
            var imgPartDefault = FirstHeaderPart.AddImagePart(ImagePartType.Jpeg);
            var imagePartDefaultID = FirstHeaderPart.GetIdOfPart(imgPartDefault);
            using (FileStream fs = new FileStream(LogoFilename, FileMode.Open))
            {
                imgPartFirst.FeedData(fs);                
            }
            using (FileStream fsD = new FileStream(LogoFilename, FileMode.Open))
            {
                imgPartDefault.FeedData(fsD);
            }
            var rIdFirst = mainDocPart.GetIdOfPart(FirstHeaderPart);
            var FirstHeaderRef = new HeaderReference { Id = rIdFirst, Type = HeaderFooterValues.First };
            var rIdDefault = mainDocPart.GetIdOfPart(DefaultHeaderPart);
            var DefaultHeaderRef = new HeaderReference { Id = rIdDefault };

            var sectionProps = mainDocPart.Document.Body.Elements<SectionProperties>().LastOrDefault();
            if (sectionProps == null)
            {
                sectionProps = new SectionProperties();
                mainDocPart.Document.Body.Append(sectionProps);
            }
            sectionProps.RemoveAllChildren<HeaderReference>();        
            FirstHeaderPart.Header = GenerateFirstPicHeader(imagePartFirstID);
            DefaultHeaderPart.Header = GeneratePicHeader(imagePartDefaultID);
            FirstHeaderPart.Header.Save();
            DefaultHeaderPart.Header.Save();
            sectionProps.PrependChild(new TitlePage());

            sectionProps.AppendChild(DefaultHeaderRef);
            sectionProps.AppendChild(FirstHeaderRef);

            return mainDocPart;
        }