I am able to add in an image to an excel spreadsheet by using OpenXML. However for the rest of the program I use ClosedXML to add data. I can add data at a specific cell using the column and row index. If I can add an image to an excel (It currently is a separate layer it seems, hovering over cells), how can I add it to a cell using ClosedXML?
//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");
}
This is the code I used, which I found here on stack overflow somewhere. I modified it to use a MemoryStream for the image. So firstly one of the problems I have is that I pass a spreadsheet document to the method, however I'm not sure what I can do in ClosedXML to fix this Really appreciate any help with how I could go about this. Ideally I would love to simply say
ws.Cell(colnum, rownum).Value = AddImageToExcel(wb, ImageToMemoryStream(imagelocation));
Thanks for any help!
ClosedXML now has basic image/picture support. As per https://github.com/ClosedXML/ClosedXML/wiki/How-can-I-insert-an-image :
using (var wb = new XLWorkbook())
{
var ws = wb.AddWorksheet("Sheet1");
var imagePath = @"c:\path\to\your\image.jpg";
var image = ws.AddPicture(imagePath)
.MoveTo(ws.Cell("B3").Address)
.Scale(.5); // optional: resize picture
wb.SaveAs("file.xlsx");
}