OpenXML を使用して、Excel スプレッドシートに画像を追加できます。ただし、プログラムの残りの部分では、ClosedXML を使用してデータを追加します。列と行のインデックスを使用して、特定のセルにデータを追加できます。画像をExcelに追加できる場合(現在、セルの上にカーソルを置いているように見える別のレイヤーです)、ClosedXMLを使用してセルに追加するにはどうすればよいですか?
//Adds an image to the excel file
public void AddImageToExcel(SpreadsheetDocument sd, MemoryStream imagestream)
{
DrawingsPart dp = sd.WorkbookPart.WorksheetParts.First().AddNewPart<DrawingsPart>();
ImagePart imgp = dp.AddImagePart(ImagePartType.Jpeg, sd.WorkbookPart.WorksheetParts.First().GetIdOfPart(dp));
MemoryStream bmstream = new MemoryStream(imagestream.ToArray());
bmstream.Seek(0, SeekOrigin.Begin);
MemoryStream fs;
using (fs = imagestream)
{
fs.Position = 0;
imgp.FeedData(fs);
}
DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualDrawingProperties nvdp = new DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualDrawingProperties();
nvdp.Id = 1025;
nvdp.Name = "Chart Image";
nvdp.Description = "Image";
DocumentFormat.OpenXml.Drawing.PictureLocks piclocks = new DocumentFormat.OpenXml.Drawing.PictureLocks();
piclocks.NoChangeAspect = true;
piclocks.NoChangeArrowheads = true;
DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualPictureDrawingProperties nvpdp = new DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualPictureDrawingProperties();
nvpdp.PictureLocks = piclocks;
DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualPictureProperties nvpp = new DocumentFormat.OpenXml.Drawing.Spreadsheet.NonVisualPictureProperties();
nvpp.NonVisualDrawingProperties = nvdp;
nvpp.NonVisualPictureDrawingProperties = nvpdp;
DocumentFormat.OpenXml.Drawing.Stretch stretch = new DocumentFormat.OpenXml.Drawing.Stretch();
stretch.FillRectangle = new DocumentFormat.OpenXml.Drawing.FillRectangle();
DocumentFormat.OpenXml.Drawing.Spreadsheet.BlipFill blipfill = new DocumentFormat.OpenXml.Drawing.Spreadsheet.BlipFill();
DocumentFormat.OpenXml.Drawing.Blip blip = new DocumentFormat.OpenXml.Drawing.Blip();
blip.Embed = dp.GetIdOfPart(imgp);
blip.CompressionState = DocumentFormat.OpenXml.Drawing.BlipCompressionValues.Print;
blipfill.Blip = blip;
blipfill.SourceRectangle = new DocumentFormat.OpenXml.Drawing.SourceRectangle();
blipfill.Append(stretch);
DocumentFormat.OpenXml.Drawing.Transform2D t2d = new DocumentFormat.OpenXml.Drawing.Transform2D();
DocumentFormat.OpenXml.Drawing.Offset offset = new DocumentFormat.OpenXml.Drawing.Offset();
offset.X = 0;
offset.Y = 0;
t2d.Offset = offset;
Bitmap bm = new Bitmap(bmstream);
DocumentFormat.OpenXml.Drawing.Extents extents = new DocumentFormat.OpenXml.Drawing.Extents();
extents.Cx = ((long)bm.Width * (long)((float)914400 / bm.HorizontalResolution));
extents.Cy = ((long)bm.Height * (long)((float)914400 / bm.VerticalResolution));
bm.Dispose();
t2d.Extents = extents;
DocumentFormat.OpenXml.Drawing.Spreadsheet.ShapeProperties sp = new DocumentFormat.OpenXml.Drawing.Spreadsheet.ShapeProperties();
sp.BlackWhiteMode = DocumentFormat.OpenXml.Drawing.BlackWhiteModeValues.Auto;
sp.Transform2D = t2d;
DocumentFormat.OpenXml.Drawing.PresetGeometry prstgeom = new DocumentFormat.OpenXml.Drawing.PresetGeometry();
prstgeom.Preset = DocumentFormat.OpenXml.Drawing.ShapeTypeValues.Rectangle;
prstgeom.AdjustValueList = new DocumentFormat.OpenXml.Drawing.AdjustValueList();
sp.Append(prstgeom);
sp.Append(new DocumentFormat.OpenXml.Drawing.NoFill());
DocumentFormat.OpenXml.Drawing.Spreadsheet.Picture picture = new DocumentFormat.OpenXml.Drawing.Spreadsheet.Picture();
picture.NonVisualPictureProperties = nvpp;
picture.BlipFill = blipfill;
picture.ShapeProperties = sp;
DocumentFormat.OpenXml.Drawing.Spreadsheet.Position pos = new DocumentFormat.OpenXml.Drawing.Spreadsheet.Position();
//The position corrosponds these numbers. X= 600000 & y = 200000 adds up to 1 cell
pos.X = 600000;
pos.Y = 200000;
Extent ext = new Extent();
ext.Cx = extents.Cx;
ext.Cy = extents.Cy;
AbsoluteAnchor anchor = new AbsoluteAnchor();
Xdr.Position pp = new Xdr.Position();
pp.X = 0;
pp.Y = 0;
anchor.Position = pp;
anchor.Position = pos;
anchor.Extent = ext;
anchor.Append(picture);
anchor.Append(new ClientData());
WorksheetDrawing wsd = new WorksheetDrawing();
wsd.Append(anchor);
Drawing drawing = new Drawing();
drawing.Id = dp.GetIdOfPart(imgp);
wsd.Save(dp);
sd.WorkbookPart.WorksheetParts.First().Worksheet.Append(drawing);
MessageBox.Show("Excel File created");
}
これは私が使用したコードで、どこかのスタック オーバーフローで見つけました。画像に MemoryStream を使用するように変更しました。最初に私が抱えている問題の 1 つは、メソッドにスプレッドシート ドキュメントを渡すことですが、これを修正するために ClosedXML で何ができるかわかりません。理想的には、私は簡単に言いたいです
ws.Cell(colnum, rownum).Value = AddImageToExcel(wb, ImageToMemoryStream(imagelocation));
助けてくれてありがとう!