openxml-sdk - Open XML SDK - 图像未显示在 excel 中

Question

我能够成功创建一个电子表格，并且我似乎已经通过代码添加了图像，问题是当我打开电子表格时，没有图像。这是我的代码:

    public static void CreateSpreadsheetWorkbook(string filepath)
    {
        SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(filepath, SpreadsheetDocumentType.Workbook);

        WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart();
        workbookpart.Workbook = new Workbook();

        WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
        worksheetPart.Worksheet = new Worksheet(new SheetData());

        Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());
        Sheet sheet = new Sheet() { Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart), SheetId = 1, Name = "mySheet" };
        sheets.Append(sheet);

        string sImagePath = @"C:\temp\install_button.png";
        DrawingsPart drawingsPart = worksheetPart.AddNewPart<DrawingsPart>();

        ImagePart imagePart = drawingsPart.AddImagePart(ImagePartType.Png, worksheetPart.GetIdOfPart(drawingsPart));
        using (FileStream stream = new FileStream(sImagePath, FileMode.Open))
        {
            imagePart.FeedData(stream);
        }

        workbookpart.Workbook.Save();
        spreadsheetDocument.Close();
    }

谢谢

斯图

Answer 1

通常，当我在处理 Open XML SDK 时无法弄清楚为什么某些东西不起作用时，我会使用 Open XML SDK 2.0 Productivity Tool弄清楚代码应该是什么。我通常会在 Excel 中创建一个空白工作表，添加图片，然后保存文档。然后我将在生产力工具中打开该文档并单击“反射(reflect)代码”按钮以查看如何重新创建该文档。我这样做是为了了解如何回答您的问题并获得以下代码来创建工作表部分:

        // Adds child parts and generates content of the specified part.
        public void CreateWorksheetPart(WorksheetPart part)
        {
            DrawingsPart drawingsPart1 = part.AddNewPart<DrawingsPart>("rId2");
            GenerateDrawingsPart1Content(drawingsPart1);

            ImagePart imagePart1 = drawingsPart1.AddNewPart<ImagePart>("image/png", "rId1");
            GenerateImagePart1Content(imagePart1);

            SpreadsheetPrinterSettingsPart spreadsheetPrinterSettingsPart1 = part.AddNewPart<SpreadsheetPrinterSettingsPart>("rId1");
            GenerateSpreadsheetPrinterSettingsPart1Content(spreadsheetPrinterSettingsPart1);

            GeneratePartContent(part);
        }

        // Generates content of drawingsPart1.
        private void GenerateDrawingsPart1Content(DrawingsPart drawingsPart1)
        {
            Xdr.WorksheetDrawing worksheetDrawing1 = new Xdr.WorksheetDrawing();
            worksheetDrawing1.AddNamespaceDeclaration("xdr", "http://schemas.openxmlformats.org/drawingml/2006/spreadsheetDrawing");
            worksheetDrawing1.AddNamespaceDeclaration("a", "http://schemas.openxmlformats.org/drawingml/2006/main");

            Xdr.TwoCellAnchor twoCellAnchor1 = new Xdr.TwoCellAnchor(){ EditAs = Xdr.EditAsValues.OneCell };

            Xdr.FromMarker fromMarker1 = new Xdr.FromMarker();
            Xdr.ColumnId columnId1 = new Xdr.ColumnId();
            columnId1.Text = "0";
            Xdr.ColumnOffset columnOffset1 = new Xdr.ColumnOffset();
            columnOffset1.Text = "0";
            Xdr.RowId rowId1 = new Xdr.RowId();
            rowId1.Text = "0";
            Xdr.RowOffset rowOffset1 = new Xdr.RowOffset();
            rowOffset1.Text = "0";

            fromMarker1.Append(columnId1);
            fromMarker1.Append(columnOffset1);
            fromMarker1.Append(rowId1);
            fromMarker1.Append(rowOffset1);

            Xdr.ToMarker toMarker1 = new Xdr.ToMarker();
            Xdr.ColumnId columnId2 = new Xdr.ColumnId();
            columnId2.Text = "0";
            Xdr.ColumnOffset columnOffset2 = new Xdr.ColumnOffset();
            columnOffset2.Text = "171429";
            Xdr.RowId rowId2 = new Xdr.RowId();
            rowId2.Text = "0";
            Xdr.RowOffset rowOffset2 = new Xdr.RowOffset();
            rowOffset2.Text = "171429";

            toMarker1.Append(columnId2);
            toMarker1.Append(columnOffset2);
            toMarker1.Append(rowId2);
            toMarker1.Append(rowOffset2);

            Xdr.Picture picture1 = new Xdr.Picture();

            Xdr.NonVisualPictureProperties nonVisualPictureProperties1 = new Xdr.NonVisualPictureProperties();
            Xdr.NonVisualDrawingProperties nonVisualDrawingProperties1 = new Xdr.NonVisualDrawingProperties(){ Id = (UInt32Value)2U, Name = "Picture 1", Description = "eprs_reports_arrow.png" };

            Xdr.NonVisualPictureDrawingProperties nonVisualPictureDrawingProperties1 = new Xdr.NonVisualPictureDrawingProperties();
            A.PictureLocks pictureLocks1 = new A.PictureLocks(){ NoChangeAspect = true };

            nonVisualPictureDrawingProperties1.Append(pictureLocks1);

            nonVisualPictureProperties1.Append(nonVisualDrawingProperties1);
            nonVisualPictureProperties1.Append(nonVisualPictureDrawingProperties1);

            Xdr.BlipFill blipFill1 = new Xdr.BlipFill();

            A.Blip blip1 = new A.Blip(){ Embed = "rId1", CompressionState = A.BlipCompressionValues.Print };
            blip1.AddNamespaceDeclaration("r", "http://schemas.openxmlformats.org/officeDocument/2006/relationships");

            A.Stretch stretch1 = new A.Stretch();
            A.FillRectangle fillRectangle1 = new A.FillRectangle();

            stretch1.Append(fillRectangle1);

            blipFill1.Append(blip1);
            blipFill1.Append(stretch1);

            Xdr.ShapeProperties shapeProperties1 = new Xdr.ShapeProperties();

            A.Transform2D transform2D1 = new A.Transform2D();
            A.Offset offset1 = new A.Offset(){ X = 0L, Y = 0L };
            A.Extents extents1 = new A.Extents(){ Cx = 171429L, Cy = 171429L };

            transform2D1.Append(offset1);
            transform2D1.Append(extents1);

            A.PresetGeometry presetGeometry1 = new A.PresetGeometry(){ Preset = A.ShapeTypeValues.Rectangle };
            A.AdjustValueList adjustValueList1 = new A.AdjustValueList();

            presetGeometry1.Append(adjustValueList1);

            shapeProperties1.Append(transform2D1);
            shapeProperties1.Append(presetGeometry1);

            picture1.Append(nonVisualPictureProperties1);
            picture1.Append(blipFill1);
            picture1.Append(shapeProperties1);
            Xdr.ClientData clientData1 = new Xdr.ClientData();

            twoCellAnchor1.Append(fromMarker1);
            twoCellAnchor1.Append(toMarker1);
            twoCellAnchor1.Append(picture1);
            twoCellAnchor1.Append(clientData1);

            worksheetDrawing1.Append(twoCellAnchor1);

            drawingsPart1.WorksheetDrawing = worksheetDrawing1;
        }

        // Generates content of imagePart1.
        private void GenerateImagePart1Content(ImagePart imagePart1)
        {
            System.IO.Stream data = GetBinaryDataStream(imagePart1Data);
            imagePart1.FeedData(data);
            data.Close();
        }

        // Generates content of spreadsheetPrinterSettingsPart1.
        private void GenerateSpreadsheetPrinterSettingsPart1Content(SpreadsheetPrinterSettingsPart spreadsheetPrinterSettingsPart1)
        {
            System.IO.Stream data = GetBinaryDataStream(spreadsheetPrinterSettingsPart1Data);
            spreadsheetPrinterSettingsPart1.FeedData(data);
            data.Close();
        }

        // Generates content of part.
        private void GeneratePartContent(WorksheetPart part)
        {
            Worksheet worksheet1 = new Worksheet();
            worksheet1.AddNamespaceDeclaration("r", "http://schemas.openxmlformats.org/officeDocument/2006/relationships");
            SheetDimension sheetDimension1 = new SheetDimension(){ Reference = "A1" };

            SheetViews sheetViews1 = new SheetViews();
            SheetView sheetView1 = new SheetView(){ TabSelected = true, WorkbookViewId = (UInt32Value)0U };

            sheetViews1.Append(sheetView1);
            SheetFormatProperties sheetFormatProperties1 = new SheetFormatProperties(){ DefaultRowHeight = 15D };
            SheetData sheetData1 = new SheetData();
            PageMargins pageMargins1 = new PageMargins(){ Left = 0.7D, Right = 0.7D, Top = 0.75D, Bottom = 0.75D, Header = 0.3D, Footer = 0.3D };
            PageSetup pageSetup1 = new PageSetup(){ Orientation = OrientationValues.Portrait, Id = "rId1" };
            Drawing drawing1 = new Drawing(){ Id = "rId2" };

            worksheet1.Append(sheetDimension1);
            worksheet1.Append(sheetViews1);
            worksheet1.Append(sheetFormatProperties1);
            worksheet1.Append(sheetData1);
            worksheet1.Append(pageMargins1);
            worksheet1.Append(pageSetup1);
            worksheet1.Append(drawing1);

            part.Worksheet = worksheet1;
        }

        #region Binary Data
        private string imagePart1Data ="lots of binary data here";

        private System.IO.Stream GetBinaryDataStream(string base64String)
        {
            return new System.IO.MemoryStream(System.Convert.FromBase64String(base64String));
        }

        #endregion

我建议你对你的图片做同样的事情，并使用生成的代码来让它工作，因为正如你所看到的，向一张新幻灯片添加一张图片是很多代码。