大家好，我正在做一个项目，我必须在单击按钮时使用 openxml将一些数据导出到 ppt 。这是我的 aspx 页面代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using DocumentFormat.OpenXml.Presentation;
using ODrawing = DocumentFormat.OpenXml.Drawing;
using DocumentFormat.OpenXml;
using DocumentFormat.Extensions1;
using DocumentFormat.OpenXml.Packaging;
using System.IO;
namespace TableInPPT
{
public partial class _Default1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
string templateFile = Server.MapPath("~/Template/Sample.potm");
string presentationFile = Server.MapPath("~/Template/SmapleNew.pptx");
PotxToPptx(templateFile, presentationFile);
//using (PresentationDocument themeDocument = PresentationDocument.Open(templateFile, false))
using (PresentationDocument prstDoc = PresentationDocument.Open(presentationFile, true))
{
AddImage(prstDoc);
AddTable(prstDoc);
}
string itemname = "SmapleNew.pptx";
Response.Clear();
Response.ContentType = "pptx";
Response.AddHeader("Content-Disposition", "attachment; filename=" + itemname + "");
Response.BinaryWrite(System.IO.File.ReadAllBytes(presentationFile));
Response.Flush();
Response.End();
}
private void PotxToPptx(string templateFile, string presentationFile)
{
MemoryStream presentationStream = null;
using (Stream tplStream = File.Open(templateFile, FileMode.Open, FileAccess.Read))
{
presentationStream = new MemoryStream((int)tplStream.Length);
tplStream.Copy(presentationStream);
presentationStream.Position = 0L;
}
using (PresentationDocument pptPackage = PresentationDocument.Open(presentationStream, true))
{
pptPackage.ChangeDocumentType(DocumentFormat.OpenXml.PresentationDocumentType.Presentation);
PresentationPart presPart = pptPackage.PresentationPart;
presPart.PresentationPropertiesPart.AddExternalRelationship("http://schemas.openxmlformats.org/officeDocument/2006/relationships/attachedTemplate",
new Uri(templateFile, UriKind.RelativeOrAbsolute));
presPart.Presentation.Save();
}
File.WriteAllBytes(presentationFile, presentationStream.ToArray());
}
private void AddTable(PresentationDocument prstDoc)
{
// Add one slide
Slide slide = prstDoc.PresentationPart.InsertSlide1("Custom Layout", 2);
Shape tableShape = slide.CommonSlideData.ShapeTree.ChildElements.OfType<Shape>()
.Where(sh => sh.NonVisualShapeProperties.NonVisualDrawingProperties.Title.Value == "TableHolder").SingleOrDefault();
if (tableShape == null) return;
// Create Graphic Frame
OpenXmlCompositeElement gElement = GetGraphicFrame(tableShape);
// Create a (6x3)Table
ODrawing.Table openXmlTable = GetSmapleTable();
// add table to graphic element
gElement.GetFirstChild<ODrawing.Graphic>().GetFirstChild<ODrawing.GraphicData>().Append(openXmlTable);
slide.CommonSlideData.ShapeTree.Append(gElement);
slide.CommonSlideData.ShapeTree.RemoveChild<Shape>(tableShape);
prstDoc.PresentationPart.Presentation.Save();
}
private void AddImage(PresentationDocument prstDoc)
{
string imgpath = Server.MapPath("~/Template/xxxx.jpg");
Slide slide = prstDoc.PresentationPart.InsertSlide("Title and Content", 2);
Shape titleShape = slide.CommonSlideData.ShapeTree.AppendChild(new Shape());
titleShape.NonVisualShapeProperties = new NonVisualShapeProperties
(new NonVisualDrawingProperties() { Id = 2, Name = "Title" },
new NonVisualShapeDrawingProperties(new ODrawing.ShapeLocks() { NoGrouping = true }),
new ApplicationNonVisualDrawingProperties(new PlaceholderShape() { Type = PlaceholderValues.Title }));
titleShape.ShapeProperties = new ShapeProperties();
// Specify the text of the title shape.
titleShape.TextBody = new TextBody(new ODrawing.BodyProperties(),
new ODrawing.ListStyle(),
new ODrawing.Paragraph(new ODrawing.Run(new ODrawing.Text() { Text = "Trade Promotion Graph " })));
Shape shape = slide.CommonSlideData.ShapeTree.Elements<Shape>().FirstOrDefault(
sh => sh.NonVisualShapeProperties.NonVisualDrawingProperties.Name.Value.ToLower().Equals("Content Placeholder 2".ToLower()));
Picture pic = slide.AddPicture(shape, imgpath);
slide.CommonSlideData.ShapeTree.RemoveChild<Shape>(shape);
slide.Save();
prstDoc.PresentationPart.Presentation.Save();
}
private ODrawing.Table GetSmapleTable()
{
ODrawing.Table table = new ODrawing.Table();
ODrawing.TableProperties tableProperties = new ODrawing.TableProperties();
ODrawing.TableStyleId tableStyleId = new ODrawing.TableStyleId();
tableStyleId.Text = "{5C22544A-7EE6-4342-B048-85BDC9FD1C3A}";
//tableStyleId.Text = "{D27102A9-8310-4765-A935-A1911B00CA55}";
tableProperties.Append(tableStyleId);
ODrawing.TableGrid tableGrid = new ODrawing.TableGrid();
ODrawing.GridColumn gridColumn1 = new ODrawing.GridColumn() { Width = 2600000L};
ODrawing.GridColumn gridColumn2 = new ODrawing.GridColumn() { Width = 2600000L };
//ODrawing.GridColumn gridColumn3 = new ODrawing.GridColumn() { Width = 1071600L };
//ODrawing.GridColumn gridColumn4 = new ODrawing.GridColumn() { Width = 1571600L };
//ODrawing.GridColumn gridColumn5 = new ODrawing.GridColumn() { Width = 771600L };
//ODrawing.GridColumn gridColumn6 = new ODrawing.GridColumn() { Width = 1071600L };
tableGrid.Append(gridColumn1);
tableGrid.Append(gridColumn2);
//tableGrid.Append(gridColumn3);
//tableGrid.Append(gridColumn4);
//tableGrid.Append(gridColumn5);
//tableGrid.Append(gridColumn6);
table.Append(tableProperties);
table.Append(tableGrid);
for (int row = 1; row <= 5; row++)
{
string text1 = "PARAMETERS";
string text2="VALUES";
if (row == 2)
{
text1 =Label1.Text ;
text2 = TextBox1.Text;
}
if (row == 3)
{
text1 = Label2.Text;
text2 = TextBox2.Text;
}
if (row == 4)
{
text1 = Label3.Text;
text2 = TextBox3.Text;
}
if (row == 5)
{
text1 = Label4.Text;
text2 = TextBox4.Text;
}
ODrawing.TableRow tableRow = new ODrawing.TableRow() { Height = 370840L };
tableRow.Append(new ODrawing.TableCell(
new ODrawing.TextBody(
new ODrawing.BodyProperties(),
new ODrawing.Paragraph(
new ODrawing.Run(
new ODrawing.RunProperties() {Language = "en-US", Dirty = false, SmartTagClean = false , FontSize = 3000},
new ODrawing.Text(text1)))),
new ODrawing.TableCellProperties()));
tableRow.Append(new ODrawing.TableCell(
new ODrawing.TextBody(
new ODrawing.BodyProperties(),
new ODrawing.Paragraph(
new ODrawing.Run(
new ODrawing.RunProperties() {Language = "en-US", Dirty = false, SmartTagClean = false , FontSize = 3000 },
new ODrawing.Text(text2)))),
new ODrawing.TableCellProperties()));
ODrawing.SolidFill solidFill = new ODrawing.SolidFill();
ODrawing.SchemeColor schemeColor = new ODrawing.SchemeColor() { Val = ODrawing.SchemeColorValues.Accent6 };
ODrawing.LuminanceModulation luminanceModulation = new ODrawing.LuminanceModulation() { Val = 75000 };
schemeColor.Append(luminanceModulation);
solidFill.Append(schemeColor);
table.Append(tableRow);
}
//for (int row = 1; row <= 3; row++)
//{
// ODrawing.TableRow tableRow = new ODrawing.TableRow() { Height = 370840L };
// for (int column = 1; column <= 6; column++)
// {
// ODrawing.TableCell tableCell = new ODrawing.TableCell();
// TextBody textBody = new TextBody() { BodyProperties = new ODrawing.BodyProperties(), ListStyle = new ODrawing.ListStyle() };
// ODrawing.Paragraph paragraph = new ODrawing.Paragraph();
// ODrawing.Run run = new ODrawing.Run();
// ODrawing.RunProperties runProperties = new ODrawing.RunProperties() { Language = "en-US", Dirty = false, SmartTagClean = false };
// ODrawing.Text text = new ODrawing.Text();
// text.Text = "Smaple Text";
// run.Append(runProperties);
// run.Append(text);
// ODrawing.EndParagraphRunProperties endParagraphRunProperties = new ODrawing.EndParagraphRunProperties() { Language = "en-US", Dirty = false };
// paragraph.Append(run);
// paragraph.Append(endParagraphRunProperties);
// textBody.Append(paragraph);
// ODrawing.TableCellProperties tableCellProperties = new ODrawing.TableCellProperties();
// ODrawing.SolidFill solidFill = new ODrawing.SolidFill();
// ODrawing.SchemeColor schemeColor = new ODrawing.SchemeColor() { Val = ODrawing.SchemeColorValues.Accent6 };
// ODrawing.LuminanceModulation luminanceModulation = new ODrawing.LuminanceModulation() { Val = 75000 };
// schemeColor.Append(luminanceModulation);
// solidFill.Append(schemeColor);
// tableCellProperties.Append(solidFill);
// tableCell.Append(textBody);
// tableCell.Append(tableCellProperties);
// tableRow.Append(tableCell);
// if (column == 1 && row == 1)
// {
// tableRow.Append(CreateTextCell("category"));
// }
// }
// }
return table;
}
static ODrawing.TableCell CreateTextCell(string text)
{
ODrawing.TableCell tc = new ODrawing.TableCell(
new ODrawing.TextBody(
new ODrawing.BodyProperties(),
new ODrawing.Paragraph(
new ODrawing.Run(
new ODrawing.Text(text)))),
new ODrawing.TableCellProperties());
return tc;
}
private static OpenXmlCompositeElement GetGraphicFrame(Shape refShape)
{
GraphicFrame graphicFrame = new GraphicFrame();
int contentPlaceholderCount = 0;
UInt32Value graphicFrameId = 1000;
NonVisualGraphicFrameProperties nonVisualGraphicFrameProperties = new NonVisualGraphicFrameProperties();
NonVisualDrawingProperties nonVisualDrawingProperties = new NonVisualDrawingProperties()
{
Id = ++graphicFrameId,
Name = "Table" + contentPlaceholderCount.ToString(),
};
NonVisualGraphicFrameDrawingProperties nonVisualGraphicFrameDrawingProperties = new NonVisualGraphicFrameDrawingProperties();
ODrawing.GraphicFrameLocks graphicFrameLocks = new ODrawing.GraphicFrameLocks() { NoGrouping = true };
nonVisualGraphicFrameDrawingProperties.Append(graphicFrameLocks);
ApplicationNonVisualDrawingProperties applicationNonVisualDrawingProperties = new ApplicationNonVisualDrawingProperties();
PlaceholderShape placeholderShape = new PlaceholderShape() { Index = graphicFrameId };
applicationNonVisualDrawingProperties.Append(placeholderShape);
nonVisualGraphicFrameProperties.Append(nonVisualDrawingProperties);
nonVisualGraphicFrameProperties.Append(nonVisualGraphicFrameDrawingProperties);
nonVisualGraphicFrameProperties.Append(applicationNonVisualDrawingProperties);
Transform transform = new Transform()
{
Offset = new ODrawing.Offset() { X = refShape.ShapeProperties.Transform2D.Offset.X, Y = refShape.ShapeProperties.Transform2D.Offset.Y },
Extents = new ODrawing.Extents() { Cx = refShape.ShapeProperties.Transform2D.Extents.Cx, Cy = refShape.ShapeProperties.Transform2D.Extents.Cy }
};
ODrawing.Graphic graphic = new ODrawing.Graphic();
ODrawing.GraphicData graphicData = new ODrawing.GraphicData() { Uri = "http://schemas.openxmlformats.org/drawingml/2006/table" };
graphic.Append(graphicData);
graphicFrame.Append(nonVisualGraphicFrameProperties);
graphicFrame.Append(transform);
graphicFrame.Append(graphic);
return graphicFrame;
}
}
}
请注意，使用的模板是仅包含两张幻灯片的示例模板，即一张标题幻灯片和另一张空白面，上面有一个文字艺术，上面写着一些随机文本。
该表还填充了来自 aspx 页面上的 4 个文本框的数据。
这是课程：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DocumentFormat.OpenXml.Packaging;
using System.IO;
using DocumentFormat.OpenXml.Presentation;
using ODrawing = DocumentFormat.OpenXml.Drawing;
using Drawing = DocumentFormat.OpenXml.Drawing;
using DocumentFormat.OpenXml;
namespace DocumentFormat.Extensions1
{
public static class Extensions1
{
internal static Slide InsertSlide(this PresentationPart presentationPart, string layoutName, int absolutePosition)
{
int slideInsertedPostion = 0;
UInt32 slideId = 256U;
slideId += Convert.ToUInt32(presentationPart.Presentation.SlideIdList.Count());
Slide slide = new Slide(new CommonSlideData(new ShapeTree()));
SlidePart sPart = presentationPart.AddNewPart<SlidePart>();
slide.Save(sPart);
SlideId newSlideId = presentationPart.Presentation.SlideIdList.AppendChild<SlideId>(new SlideId());
newSlideId.Id = slideId;
newSlideId.RelationshipId = presentationPart.GetIdOfPart(sPart);
slideInsertedPostion = presentationPart.SlideParts.Count();
presentationPart.Presentation.Save();
var returnVal = ReorderSlides(presentationPart, slideInsertedPostion - 1, absolutePosition - 1);
return GetSlideByRelationshipId(presentationPart, newSlideId.RelationshipId);
}
public static Slide InsertSlide1(this PresentationPart presentationPart, string layoutName, int absolutePosition)
{
int slideInsertedPostion = 0;
UInt32 slideId = 256U;
slideId += Convert.ToUInt32(presentationPart.Presentation.SlideIdList.Count());
Slide slide = new Slide(new CommonSlideData(new ShapeTree()));
SlidePart sPart = presentationPart.AddNewPart<SlidePart>();
slide.Save(sPart);
SlideMasterPart smPart = presentationPart.SlideMasterParts.First();
SlideLayoutPart slPart = smPart.SlideLayoutParts.SingleOrDefault(sl => sl.SlideLayout.CommonSlideData.Name.Value.Equals(layoutName));
//SlideLayoutPart slPart = smPart.SlideLayoutParts.SingleOrDefault(sl => sl.SlideLayout.CommonSlideData.Name.Value.Equals(layoutName));
sPart.AddPart<SlideLayoutPart>(slPart);
sPart.Slide.CommonSlideData = (CommonSlideData)smPart.SlideLayoutParts.SingleOrDefault(sl => sl.SlideLayout.CommonSlideData.Name.Value.Equals(layoutName)).SlideLayout.CommonSlideData.Clone();
SlideId newSlideId = presentationPart.Presentation.SlideIdList.AppendChild<SlideId>(new SlideId());
newSlideId.Id = slideId;
newSlideId.RelationshipId = presentationPart.GetIdOfPart(sPart);
slideInsertedPostion = presentationPart.SlideParts.Count();
presentationPart.Presentation.Save();
var returnVal = ReorderSlides(presentationPart, slideInsertedPostion - 1, absolutePosition - 1);
return GetSlideByRelationshipId(presentationPart, newSlideId.RelationshipId);
}
internal static int ReorderSlides(PresentationPart presentationPart, int currentSlidePosition, int newPosition)
{
int returnValue = -1;
if (newPosition == currentSlidePosition) { return returnValue; }
int slideCount = presentationPart.SlideParts.Count();
if (slideCount == 0) { return returnValue; }
int maxPosition = slideCount - 1;
CalculatePositions(ref currentSlidePosition, ref newPosition, maxPosition);
if (newPosition != currentSlidePosition)
{
DocumentFormat.OpenXml.Presentation.Presentation presentation = presentationPart.Presentation;
SlideIdList slideIdList = presentation.SlideIdList;
SlideId sourceSlide = (SlideId)(slideIdList.ChildElements[currentSlidePosition]);
SlideId targetSlide = (SlideId)(slideIdList.ChildElements[newPosition]);
sourceSlide.Remove();
if (newPosition > currentSlidePosition)
{
slideIdList.InsertAfter(sourceSlide, targetSlide);
}
else
{
slideIdList.InsertBefore(sourceSlide, targetSlide);
}
returnValue = newPosition;
}
presentationPart.Presentation.Save();
return returnValue;
}
private static void CalculatePositions(ref int originalPosition, ref int newPosition, int maxPosition)
{
if (originalPosition < 0)
{
originalPosition = maxPosition;
}
if (newPosition < 0)
{
newPosition = maxPosition;
}
if (originalPosition > maxPosition)
{
originalPosition = maxPosition;
}
if (newPosition > maxPosition)
{
newPosition = maxPosition;
}
}
private static Slide GetSlideByRelationshipId(PresentationPart presentationPart, DocumentFormat.OpenXml.StringValue relId)
{
SlidePart slidePart = presentationPart.GetPartById(relId) as SlidePart;
if (slidePart != null)
{
return slidePart.Slide;
}
else
{
return null;
}
}
internal static Picture AddPicture(this Slide slide, Shape referingShape, string imageFile)
{
Picture picture = new Picture();
string embedId = string.Empty;
UInt32Value picId = 10001U;
string name = string.Empty;
if (slide.Elements<Picture>().Count() > 0)
{
picId = ++slide.Elements<Picture>().ToList().Last().NonVisualPictureProperties.NonVisualDrawingProperties.Id;
}
name = "image" + picId.ToString();
embedId = "rId" + (slide.Elements<Picture>().Count() + 915).ToString(); // some value
NonVisualPictureProperties nonVisualPictureProperties = new NonVisualPictureProperties()
{
NonVisualDrawingProperties = new NonVisualDrawingProperties() { Name = name, Id = picId, Title = name },
NonVisualPictureDrawingProperties = new NonVisualPictureDrawingProperties() { PictureLocks = new Drawing.PictureLocks() { NoChangeAspect = true } },
ApplicationNonVisualDrawingProperties = new ApplicationNonVisualDrawingProperties() { UserDrawn = true }
};
BlipFill blipFill = new BlipFill() { Blip = new Drawing.Blip() { Embed = embedId } };
Drawing.Stretch stretch = new Drawing.Stretch() { FillRectangle = new Drawing.FillRectangle() };
blipFill.Append(stretch);
ShapeProperties shapeProperties = new ShapeProperties()
{
Transform2D = new Drawing.Transform2D()
{
Offset = new Drawing.Offset() { X = 1554691, Y = 1600200 },
Extents = new Drawing.Extents() { Cx = 6034617, Cy = 4525963 }
}
};
Drawing.PresetGeometry presetGeometry = new Drawing.PresetGeometry() { Preset = Drawing.ShapeTypeValues.Rectangle };
Drawing.AdjustValueList adjustValueList = new Drawing.AdjustValueList();
presetGeometry.Append(adjustValueList);
shapeProperties.Append(presetGeometry);
picture.Append(nonVisualPictureProperties);
picture.Append(blipFill);
picture.Append(shapeProperties);
slide.CommonSlideData.ShapeTree.Append(picture);
// Add Image part
slide.AddImagePart(embedId, imageFile);
slide.Save();
return picture;
}
private static void AddImagePart(this Slide slide, string relationshipId, string imageFile)
{
ImagePart imgPart = slide.SlidePart.AddImagePart(GetImagePartType(imageFile), relationshipId);
using (FileStream imgStream = File.Open(imageFile, FileMode.Open))
{
imgPart.FeedData(imgStream);
}
}
private static ImagePartType GetImagePartType(string imageFile)
{
string[] imgFileSplit = imageFile.Split('.');
string imgExtension = imgFileSplit.ElementAt(imgFileSplit.Count() - 1).ToString().ToLower();
if (imgExtension.Equals("jpg"))
imgExtension = "jpeg";
return (ImagePartType)Enum.Parse(typeof(ImagePartType), imgExtension, true);
}
public static void Copy(this Stream source, Stream target)
{
if (source != null)
{
MemoryStream mstream = source as MemoryStream;
if (mstream != null) mstream.WriteTo(target);
else
{
byte[] buffer = new byte[2048];
int length = buffer.Length, size;
while ((size = source.Read(buffer, 0, length)) != 0)
target.Write(buffer, 0, size);
}
}
}
}
}
现在这是我的查询： 1.在 aspx 页面中，如果我尝试用我自己的模板（与示例相同）替换 templateFile，它会在这一行给我一个错误“对象引用未设置为对象的实例” (sh => sh.NonVisualShapeProperties.NonVisualDrawingProperties.Title.Value == "TableHolder")在 AddTable.Otherwise 它工作正常。
2.Also 在第二张幻灯片中，我得到了所需的表格，但在页面顶部写了 5 次“图像”一词。
3.同样在生成的powerpoint文件中，除了第一张和最后一张幻灯片（即模板中的幻灯片），模板样式不显示在幻灯片上。
谢谢你。