Question

我可以使用OpenXML将图像添加到Excel电子表格中。但是对于程序的其余部分，我使用ClosedXML来添加数据。我可以使用列和行索引在特定单元格中添加数据。如果我可以将图像添加到excel（它当前是一个单独的图层，将其悬停在单元格上），如何使用ClosedXML将其添加到单元格中？

    //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");
    }

这是我使用的代码，我在这里找到堆栈溢出的代码。我修改它以使用MemoryStream作为图像。首先，我遇到的一个问题是我将电子表格文档传递给方法，但是我不知道在ClosedXML中我能做些什么来解决这个问题。非常感谢任何有关我如何做到这一点的帮助。理想情况下，我只想说

ws.Cell(colnum, rownum).Value = AddImageToExcel(wb, ImageToMemoryStream(imagelocation));

感谢您的帮助！

Answer 1

我有点迟到，但万一有人来看我已经为ClosedXML添加了（有限的）图像支持。

福克斯可以找到 https://closedxml.codeplex.com/SourceControl/network/forks/ajwhiteway/ClosedXMLImageSupport

编辑：添加一些细节如何工作。

已添加新课程，XLPicture和XLMarker。

可以通过

创建图片

  XLPicture pic = new XLPicture
  {
    NoChangeAspect = true,
    NoMove = true,
    NoResize = true,
    ImageStream = fIn,
    Name = "Test Image"
  };

截至目前，它只接受流，而不接受文件，并且只接收JPEG。如果有需求，可以更改。

创建照片后，您可以为其创建标记

  XLMarker fMark = new XLMarker
  {
    ColumnId = 2,
    RowId = 2
  };
  pic.AddMarker(fMark);

如果添加单个标记，它会将图像直接嵌入到单元格中。如果添加2个标记，它将跨越两个标记跨越图像。

然后将其添加到工作表中

 worksheet.AddPicture(pic);

干杯。

Answer 2

ClosedXML现在具有基本的图像/图片支持。根据{{3}}：

using (var wb = new XLWorkbook())
{
  var ws = wb.AddWorksheet("Sheet1");

  var imagePath = @"c:\path\to\your\image.jpg";
  var image = ws.AddPicture(ImageLocation)
      .MoveTo(ws.Cell("B3").Address)
      .Scale(.5); // optional: resize picture

  wb.SaveAs("file.xlsx");
}

Answer 3

你能解决的地方？我们面临着类似的问题，我们必然会使用ClosedXML，否则有些志愿者会编写代码，否则ClosedXML将不支持插入图片... 如果您能够解决问题，我们将非常感谢您分享您的解决方案！此致，本诺

Answer 4

此功能已包含在版本0.89.0起的封闭XML中

此代码用于MVC5，但您也可以在其他地方使用它。

        public ActionResult Contact()
    {
        //Creating excelsheet and adding workbook with name Picture
        XLWorkbook workbook = new XLWorkbook();
        IXLWorksheet worksheet = workbook.Worksheets.Add("Picture");

        //Adjusting size of the excel cell as per requirement
        worksheet.Column(3).Width = 60;
        worksheet.Row(3).Height = 50;

        var imagePath = @"~/Images/Picture2.png";

        //Adding image to the worksheet and moving it to the cell
        var image = worksheet.AddPicture(Server.MapPath(imagePath))
            .MoveTo(worksheet.Cell(3, 3).Address);
        image.Name = "Logo";

        //Scaling down image as per our cell size
        image.ScaleWidth(.5);
        image.ScaleHeight(.3);

        //Formating the cell with border and color
        worksheet.Cell(3, 3).Style.Border.OutsideBorder = XLBorderStyleValues.Thick;
        worksheet.Cell(3, 3).Style.Border.OutsideBorderColor = XLColor.Blue;

        //asving worksheet in memory stream
        MemoryStream stream = new MemoryStream();
        workbook.SaveAs(stream);
        stream.Position = 0;
        //returning the final excelsheet with name Picture
        return new FileStreamResult(stream, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
        { FileDownloadName = "Pictures.xlsx" };
    }

您可以参考该链接以获取详细说明。希望对别人有帮助

https://www.youtube.com/watch?v=8X0kg0YzI2g&t=242s

ClosedXML添加图像

4 个答案: