[英]OpenXML insert image as Link to File to word document
如何添加鏈接和如何添加圖像之間的唯一區別在於關系的構造。 圖像的顯示部分相同。 為了添加圖像關系,您將需要以下內容:
//This isn't necessery if you know the Part Type (e.g. MainDocumentPart.AddImagePart())
private static ImagePart CreateImagePart(OpenXmlPart container, string contentType)
{
var method = container.GetType().GetMethod("AddImagePart", new Type[] { typeof(string) });
if (method == null)
throw new Exception("Can't add an image to type: " + container.GetType().Name);
return (ImagePart)method.Invoke(container, new object[] { contentType });
}
private static string AddImageToDocument(OpenXmlPart part, string imageSource, string contentType, bool addAsLink)
{
if (addAsLink)
{
ImagePart imagePart = CreateImagePart(part, contentType);
string id = part.GetIdOfPart(imagePart);
part.DeletePart(imagePart);
part.AddExternalRelationship(imagePart.RelationshipType, new Uri(imageSource, UriKind.Absolute), id);
return id;
}
else
{
ImagePart imagePart = CreateImagePart(part, contentType);
using (Stream imageStream = File.Open(imageSource, FileMode.Open))
{
imagePart.FeedData(imageStream);
}
return part.GetIdOfPart(imagePart);
}
}
將圖像添加到文檔中后,可以使用參考顯示圖像
就像是...
private static OpenXmlElement CreateImageContainer(OpenXmlPart part, string relationshipId, string imageName, int widthPixels, int heightPixels)
{
long widthEMU = (widthPixels * 914400L) / 96L;
long heightEMU = (heightPixels * 914400L) / 96L;
var element =
new Paragraph(
new Run(
new RunProperties(
new NoProof()),
new Drawing(
new wp.Inline(
new wp.Extent() { Cx = widthEMU, Cy = heightEMU },
new wp.DocProperties() { Id = (UInt32Value)1U, Name = "Picture 0", Description = imageName },
new wp.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 = imageName },
new pic.NonVisualPictureDrawingProperties()),
new pic.BlipFill(
new a.Blip() { Embed = relationshipId },
new a.Stretch(
new a.FillRectangle())),
new pic.ShapeProperties(
new a.Transform2D(
new a.Offset() { X = 0L, Y = 0L },
new a.Extents() { Cx = widthEMU, Cy = heightEMU }),
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 }))
);
return element;
}
請注意,我在網上找到的最后一部分(CreateImageContainer)進行了調整/重命名/重構以用於我的示例,其中包含一個問題,即DocProperties ID和Name以及NonVisualDrawingProperties Id在整個部分中必須是唯一的。 (您不能以當前形式兩次調用此方法)
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