如何在asp.net中打印pdf文件 [英] How to print pdf file in asp.net

问题描述

亲爱的先生，





如何从asp.net代码打印PDF（可移植文档格式）文件，



有温暖的问候



由Mohan

Dear Sir,


How to print PDF(Portable Document Format)file from asp.net code,

With Warm Regards

By Mohan

推荐答案

您是否尝试过这种方法：

http://vidmar.net/weblog/archive/2008/04/14/printing-pdf-documents-in-c.aspx [ ^ ]



或这一个：

http://stackoverflow.com/questions/273675/print-existing-pdf-or-other-files-in-c-sharp [ ^ ]

Have you tried this method :
http://vidmar.net/weblog/archive/2008/04/14/printing-pdf-documents-in-c.aspx[^]

or this one :
http://stackoverflow.com/questions/273675/print-existing-pdf-or-other-files-in-c-sharp[^]

引用：

你可以使用iTextSharp库动态生成PDf文件

you can use iTextSharp library for generating PDf Files dynamically

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using iTextSharp.text;
using iTextSharp.text.html;
using iTextSharp.text.pdf;
using System.IO;


 protected void ExportToPDF(GridView gvReport, bool LandScape)
    {
        int noOfColumns = 0, noOfRows = 0;
        DataTable tbl = null;

        if (gvReport.AutoGenerateColumns)
        {
            tbl = gvReport.DataSource as DataTable; // Gets the DataSource of the GridView Control.
            noOfColumns = tbl.Columns.Count;
            noOfRows = tbl.Rows.Count;
        }
        else
        {
            noOfColumns = gvReport.Columns.Count;
            noOfRows = gvReport.Rows.Count;
        }

        float HeaderTextSize = 8;
        float ReportNameSize = 10;
        float ReportTextSize = 8;
        float ApplicationNameSize = 7;

        // Creates a PDF document
        Document document = null;
        if (LandScape == true)
        {
            // Sets the document to A4 size and rotates it so that the orientation of the page is Landscape.
            document = new Document(PageSize.A4.Rotate(), 0, 0, 15, 5);
        }
        else
        {
            document = new Document(PageSize.A4, 0, 0, 15, 5);
        }

        // Creates a PdfPTable with column count of the table equal to no of columns of the gridview or gridview datasource.
        iTextSharp.text.pdf.PdfPTable mainTable = new iTextSharp.text.pdf.PdfPTable(noOfColumns);

        // Sets the first 4 rows of the table as the header rows which will be repeated in all the pages.
        mainTable.HeaderRows = 4;

        // Creates a PdfPTable with 2 columns to hold the header in the exported PDF.
        iTextSharp.text.pdf.PdfPTable headerTable = new iTextSharp.text.pdf.PdfPTable(2);

        // Creates a phrase to hold the application name at the left hand side of the header.
        Phrase phApplicationName = new Phrase("Sample Application", FontFactory.GetFont("Arial", ApplicationNameSize, iTextSharp.text.Font.NORMAL));

        // Creates a PdfPCell which accepts a phrase as a parameter.
        PdfPCell clApplicationName = new PdfPCell(phApplicationName);
        // Sets the border of the cell to zero.
        clApplicationName.Border = PdfPCell.NO_BORDER;
        // Sets the Horizontal Alignment of the PdfPCell to left.
        clApplicationName.HorizontalAlignment = Element.ALIGN_LEFT;

        // Creates a phrase to show the current date at the right hand side of the header.
        Phrase phDate = new Phrase(DateTime.Now.Date.ToString("dd/MM/yyyy"), FontFactory.GetFont("Arial", ApplicationNameSize, iTextSharp.text.Font.NORMAL));

        // Creates a PdfPCell which accepts the date phrase as a parameter.
        PdfPCell clDate = new PdfPCell(phDate);
        // Sets the Horizontal Alignment of the PdfPCell to right.
        clDate.HorizontalAlignment = Element.ALIGN_RIGHT;
        // Sets the border of the cell to zero.
        clDate.Border = PdfPCell.NO_BORDER;

        // Adds the cell which holds the application name to the headerTable.
        headerTable.AddCell(clApplicationName);
        // Adds the cell which holds the date to the headerTable.
        headerTable.AddCell(clDate);
        // Sets the border of the headerTable to zero.
        headerTable.DefaultCell.Border = PdfPCell.NO_BORDER;

        // Creates a PdfPCell that accepts the headerTable as a parameter and then adds that cell to the main PdfPTable.
        PdfPCell cellHeader = new PdfPCell(headerTable);
        cellHeader.Border = PdfPCell.NO_BORDER;
        // Sets the column span of the header cell to noOfColumns.
        cellHeader.Colspan = noOfColumns;
        // Adds the above header cell to the table.
        mainTable.AddCell(cellHeader);

        // Creates a phrase which holds the file name.
        Phrase phHeader = new Phrase("Sample Export", FontFactory.GetFont("Arial", ReportNameSize, iTextSharp.text.Font.BOLD));
        PdfPCell clHeader = new PdfPCell(phHeader);
        clHeader.Colspan = noOfColumns;
        clHeader.Border = PdfPCell.NO_BORDER;
        clHeader.HorizontalAlignment = Element.ALIGN_CENTER;
        mainTable.AddCell(clHeader);

        // Creates a phrase for a new line.
        Phrase phSpace = new Phrase("\n");
        PdfPCell clSpace = new PdfPCell(phSpace);
        clSpace.Border = PdfPCell.NO_BORDER;
        clSpace.Colspan = noOfColumns;
        mainTable.AddCell(clSpace);

        // Sets the gridview column names as table headers.
        for (int i = 0; i < noOfColumns; i++)
        {
            Phrase ph = null;

            if (gvReport.AutoGenerateColumns)
            {
                ph = new Phrase(tbl.Columns[i].ColumnName, FontFactory.GetFont("Arial", HeaderTextSize, iTextSharp.text.Font.BOLD));
            }
            else
            {
                ph = new Phrase(gvReport.Columns[i].HeaderText, FontFactory.GetFont("Arial", HeaderTextSize, iTextSharp.text.Font.BOLD));
            }

            mainTable.AddCell(ph);
        }

        // Reads the gridview rows and adds them to the mainTable
        for (int rowNo = 0; rowNo < noOfRows; rowNo++)
        {
            for (int columnNo = 0; columnNo < noOfColumns; columnNo++)
            {
                if (gvReport.AutoGenerateColumns)
                {
                    string s = gvReport.Rows[rowNo].Cells[columnNo].Text.Trim();
                    Phrase ph = new Phrase(s, FontFactory.GetFont("Arial", ReportTextSize, iTextSharp.text.Font.NORMAL));
                    mainTable.AddCell(ph);
                }
                else
                {
                    if (gvReport.Columns[columnNo] is TemplateField)
                    {
                        DataBoundLiteralControl lc = gvReport.Rows[rowNo].Cells[columnNo].Controls[0] as DataBoundLiteralControl;
                        string s = lc.Text.Trim();
                        Phrase ph = new Phrase(s, FontFactory.GetFont("Arial", ReportTextSize, iTextSharp.text.Font.NORMAL));
                        mainTable.AddCell(ph);
                    }
                    else
                    {
                        string s = gvReport.Rows[rowNo].Cells[columnNo].Text.Trim();
                        Phrase ph = new Phrase(s, FontFactory.GetFont("Arial", ReportTextSize, iTextSharp.text.Font.NORMAL));
                        mainTable.AddCell(ph);
                    }
                }
            }

            // Tells the mainTable to complete the row even if any cell is left incomplete.
            mainTable.CompleteRow();
        }

        // Gets the instance of the document created and writes it to the output stream of the Response object.
        PdfWriter.GetInstance(document, Response.OutputStream);

        // Creates a footer for the PDF document.
        HeaderFooter pdfFooter = new HeaderFooter(new Phrase(), true);
        pdfFooter.Alignment = Element.ALIGN_CENTER;
        pdfFooter.Border = iTextSharp.text.Rectangle.NO_BORDER;

        // Sets the document footer to pdfFooter.
        document.Footer = pdfFooter;
        // Opens the document.
        document.Open();
        // Adds the mainTable to the document.
        document.Add(mainTable);
        // Closes the document.
        document.Close();

        Response.ContentType = "application/pdf";
        Response.AddHeader("content-disposition", "attachment; filename= SampleExport.pdf");
        Response.End();
    }

你好，



这篇文章中的方法怎么样（ http://www.c-sharpcorner.com/UploadFile/d0cbea/8792/ [ ^ ]）？



我希望它对你有所帮助。

Hello,

How about method in this article(http://www.c-sharpcorner.com/UploadFile/d0cbea/8792/[^])?

I hope that it can be helpful for you.

这篇关于如何在asp.net中打印pdf文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！