C# PdfDocument.SaveToStream方法代码示例

        public Stream SaveAsStream()
        {
            table.EndLoadData();
            table.AcceptChanges();
            var removes = new List<string>();
            foreach (DataColumn dc in table.Columns)
                if (title.IndexOf(dc.ColumnName) == -1)
                    removes.Add(dc.ColumnName);
            foreach (var name in removes)
                table.Columns.Remove(name);
            var pdfTitle = table.TableName;

            // Starting instantiate the document.
            // Remember to set the Docuement Format. In this case, we specify width and height.
            PdfDocument myPdfDocument = new PdfDocument(PdfDocumentFormat.InCentimeters(21, 29.7));

            // Now we create a Table of 100 lines, 6 columns and 4 points of Padding.
            PdfTable myPdfTable = myPdfDocument.NewTable(new Font("Arial", 12), table.Rows.Count, table.Columns.Count, 4);

            // Importing datas from the datatables... (also column names for the headers!)
            //myPdfTable.ImportDataTable(Table);
            myPdfTable.ImportDataTable(table);

            // Sets the format for correct date-time representation
            //myPdfTable.Columns[2].SetContentFormat("{0:dd/MM/yyyy}");

            // Now we set our Graphic Design: Colors and Borders...
            myPdfTable.HeadersRow.SetColors(Color.White, Color.Navy);
            myPdfTable.SetColors(Color.Black, Color.White, Color.Gainsboro);
            myPdfTable.SetBorders(Color.Black, 1, BorderType.CompleteGrid);

            //// With just one method we can set the proportional width of the columns.
            //// It's a "percentage like" assignment, but the sum can be different from 100.
            //myPdfTable.SetColumnsWidth(new int[] { 5, 25, 16, 20, 20, 15 });

            //// You can also set colors for a range of cells, in this case, a row:
            //myPdfTable.Rows[7].SetColors(Color.Black, Color.LightGreen);

            // Now we set some alignment... for the whole table and then, for a column.
            myPdfTable.SetContentAlignment(ContentAlignment.MiddleCenter);
            myPdfTable.Columns[1].SetContentAlignment(ContentAlignment.MiddleLeft);

            // Here we start the loop to generate the table...
            while (!myPdfTable.AllTablePagesCreated)
            {
                // we create a new page to put the generation of the new TablePage:
                PdfPage newPdfPage = myPdfDocument.NewPage();
                PdfTablePage newPdfTablePage = myPdfTable.CreateTablePage(new PdfArea(myPdfDocument, 48, 120, 500, 670));

                // we also put a Label
                PdfTextArea pta = new PdfTextArea(new Font("Arial", 26, FontStyle.Bold), Color.Red
                    , new PdfArea(myPdfDocument, 0, 20, 595, 120), ContentAlignment.MiddleCenter, pdfTitle);

                // nice thing: we can put all the objects in the following lines, so we can have
                // a great control of layer sequence...
                newPdfPage.Add(newPdfTablePage);
                newPdfPage.Add(pta);

                // we save each generated page before start rendering the next.
                newPdfPage.SaveToDocument();
            }

            //myPdfDocument.SaveToFile("Example1.pdf");
            var stream = new MemoryStream();
            myPdfDocument.SaveToStream(stream);
            return stream;
        }

//.........这里部分代码省略.........
                = new PdfStringFormat(PdfTextAlignment.Center);
            page.Canvas.DrawString("Vendor List", font1, brush1, page.Canvas.ClientSize.Width / 2, y, format1);
            y = y + font1.MeasureString("Vendor List", format1).Height;
            y = y + 5;

            PdfGrid grid = new PdfGrid();
            grid.Style.CellPadding = new PdfPaddings(1, 1, 1, 1);
            grid.Columns.Add(this.dataGridVendorList.Columns.Count);

            float width
                = page.Canvas.ClientSize.Width - (grid.Columns.Count + 1);
            grid.Columns[0].Width = width * 0.25f;
            grid.Columns[1].Width = width * 0.25f;
            grid.Columns[2].Width = width * 0.25f;
            grid.Columns[3].Width = width * 0.15f;
            grid.Columns[4].Width = width * 0.10f;

            //header of grid
            PdfGridRow headerRow = grid.Headers.Add(1)[0];
            headerRow.Style.Font
                = new PdfInternalFont(new Font("Arial", 11f, System.Drawing.FontStyle.Bold), true);
            String[] header = { "Vendor Name", "Address", "City", "State", "Country" };
            for (int i = 0; i < header.Length; i++)
            {
                headerRow.Cells[i].Value = header[i];
                headerRow.Cells[i].StringFormat
                    = new PdfStringFormat(PdfTextAlignment.Center, PdfVerticalAlignment.Middle);

            }
            headerRow.Style.BackgroundBrush = PdfBrushes.SeaGreen;

            //datarow of grid
            int rowIndex = 1;
            foreach (Vendor vendor in this.dataSource)
            {
                PdfGridRow row = grid.Rows.Add();
                row.Style.Font = new PdfInternalFont(new Font("Arial", 10f), true);
                row.Cells[0].Value = vendor.VendorName;
                row.Cells[1].Value = vendor.Address;
                row.Cells[2].Value = vendor.City;
                row.Cells[3].Value = vendor.State;
                row.Cells[4].Value = vendor.Country;

                row.Cells[0].Style.BackgroundBrush = PdfBrushes.LightGray;
                row.Cells[0].StringFormat = row.Cells[1].StringFormat = row.Cells[2].StringFormat
                    = new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);
                row.Cells[3].StringFormat = row.Cells[4].StringFormat
                    = new PdfStringFormat(PdfTextAlignment.Center, PdfVerticalAlignment.Middle);
                if (rowIndex % 2 == 0)
                {
                    row.Style.BackgroundBrush = PdfBrushes.YellowGreen;
                }
                else
                {
                    row.Style.BackgroundBrush = PdfBrushes.Bisque;
                }
                rowIndex++;
            }

            StringBuilder totalAmount = new StringBuilder();

            var groupByCountry
                = this.dataSource.GroupBy(v => v.Country)
                    .Select(g => new { Name = g.Key, Count = g.Count() });

            foreach (var item in groupByCountry)
            {
                totalAmount.AppendFormat("{0}:\t{1}", item.Name, item.Count);
                totalAmount.AppendLine();
            }

            PdfGridRow totalAmountRow = grid.Rows.Add();
            totalAmountRow.Style.BackgroundBrush = PdfBrushes.Plum;
            totalAmountRow.Cells[0].Value = "Total Amount";
            totalAmountRow.Cells[0].Style.Font
                = new PdfInternalFont(new Font("Arial", 10f, System.Drawing.FontStyle.Bold), true);
            totalAmountRow.Cells[0].StringFormat
                = new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);
            totalAmountRow.Cells[1].ColumnSpan = 4;
            totalAmountRow.Cells[1].Value = totalAmount.ToString();
            totalAmountRow.Cells[1].Style.Font
                = new PdfInternalFont(new Font("Arial", 10f, System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic), true);
            totalAmountRow.Cells[1].StringFormat
                = new PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Middle);

            PdfLayoutResult resultl = grid.Draw(page, new PointF(0, y));
            y = y + resultl.Bounds.Height + 5;

            PdfBrush brush2 = PdfBrushes.Gray;
            PdfTrueTypeFont font2 = new PdfInternalFont(new Font("Arial", 9f));
            resultl.Page.Canvas.DrawString(String.Format("* All {0} vendors in the list", grid.Rows.Count - 1),
                font2, brush2, 5, y);

            //Save pdf file.
            using (Stream stream = saveFiledialog.OpenFile())
            {
                document.SaveToStream(stream);
            }
            document.Close();
        }