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我已经到处寻找可以帮助我解决这个问题的东西，但到目前为止还没有。我正在尝试创建一个允许用户打印 pdf 集合的程序。我正在使用 ABCPDF9 来获取我的 pdf（其中大部分存储为 html）并将它们全部附加到单个 ABCPDF.Doc 对象中。我遇到的问题是，当我有这些多页时，我最终只能打印一页 pdf。下面是一些代码片段。

    private void ProcessAndPrintSelected()
    {
        var selectedForm = SubSonicRepository.Instance.CommunicationRepository.GetMessageTemplateByID((int)cmboChooseForm.SelectedValue);
        _currentItemIndex = 0;
        int itemsCount = dataGridViewLoans.RowCount;
        _currentPrintPageIndex = 1;           
        foreach (DataGridViewRow row in this.dataGridViewLoans.Rows)
        {                 
            lblPrinterProgress.Text = "Printing document " + _currentItemIndex + " of " + itemsCount + ".";
            lblPrinterProgress.Refresh();
            Application.DoEvents();
            BulkPrinterLoanModel loan = row.DataBoundItem as BulkPrinterLoanModel;
            try
            {
                if (selectedForm.MailMessageContent != null)
                {
                    byte[] formBytes = GetFormBytes(selectedForm.ID, loan.ApplicantID, loan.LoanID);
                    doc.Read(formBytes);
                    appendedDocs.Append(doc);
                }
                else
                {
                    throw new InvalidOperationException("No PDF data to print.");
                }
            }
            catch (Exception x)
            {
                //for now, don't do anything, not even logging, but don't halt queue either.
                MessageBox.Show(x.ToString());
            }
        }
        printDoc.PrintPage += new PrintPageEventHandler(pd_PrintPage);
        printDoc.PrinterSettings.FromPage = 1;
        printDoc.PrinterSettings.ToPage = appendedDocs.PageCount;
        printDoc.PrinterSettings.MinimumPage = 1;
        printDoc.PrinterSettings.MaximumPage = appendedDocs.PageCount;
        PrintDialog pDialog = new PrintDialog();
        pDialog.Document = printDoc;
        pDialog.AllowSomePages = true;
        if (pDialog.ShowDialog() == DialogResult.OK)
        {
            pDialog.Document.Print();
        }
    }

和我的打印页面事件。

    void pd_PrintPage(object sender, PrintPageEventArgs e)
    {
        XRect cropBox = appendedDocs.CropBox;
        double srcWidth = (cropBox.Width / 72) * 100;
        double srcHeight = (cropBox.Height / 72) * 100;
        double pageWidth = e.PageBounds.Width;
        double pageHeight = e.PageBounds.Height;
        double marginX = e.PageSettings.HardMarginX;
        double marginY = e.PageSettings.HardMarginY;

        //center it
        double x = (pageWidth - srcWidth) / 2;
        double y = (pageHeight - srcHeight) / 2;
        x -= marginX;
        y -= marginY;

        RectangleF rect = new RectangleF((float)x, (float)y, (float)srcWidth, (float)srcHeight);
        appendedDocs.Rect.SetRect(cropBox);
        int rez = e.PageSettings.PrinterResolution.X;
        appendedDocs.Rendering.DotsPerInch = rez;
        Graphics g = e.Graphics;
        using (Bitmap bitmap = appendedDocs.Rendering.GetBitmap())
        {
            g.DrawImage(bitmap, rect);
        }
    }

我查看了 ABCPDF 手册，但所有关于打印的帮助都在他们的示例项目中提供，我很难理解。对此问题的任何帮助将不胜感激。谢谢 ：）

4

1 回答 1

1

我明白了，主要是通过查看以下问题。我需要使用 Doc.PageNumber 来访问 pdf 的每一页。这是我更改代码的打印页面事件。

    void pd_PrintPage(object sender, PrintPageEventArgs e)
    {
        _currentItemIndex++;//added index to keep track of page. default to 1
        appendedDocs.PageNumber = _currentItemIndex;//set to current page for printing
        XRect cropBox = appendedDocs.CropBox;
        double srcWidth = (cropBox.Width / 72) * 100;
        double srcHeight = (cropBox.Height / 72) * 100;
        double pageWidth = e.PageBounds.Width;
        double pageHeight = e.PageBounds.Height;
        double marginX = e.PageSettings.HardMarginX;
        double marginY = e.PageSettings.HardMarginY;

        //center it
        double x = (pageWidth - srcWidth) / 2;
        double y = (pageHeight - srcHeight) / 2;
        x -= marginX;
        y -= marginY;

        RectangleF rect = new RectangleF((float)x, (float)y, (float)srcWidth, (float)srcHeight);
        appendedDocs.Rect.SetRect(cropBox);
        int rez = e.PageSettings.PrinterResolution.X;
        appendedDocs.Rendering.DotsPerInch = rez;
        Graphics g = e.Graphics;

        using (Bitmap bitmap = appendedDocs.Rendering.GetBitmap())
        {
            g.DrawImage(bitmap, rect);
        }

        e.HasMorePages = _currentItemIndex < appendedDocs.PageCount;//check for more pages.
    }

问了这个问题然后回答自己感觉很傻。但很高兴知道这个问题现在已经出现在其他任何被这个问题困扰的人身上。

于 2013-05-02T16:14:48.733 回答