Question

我正在尝试从C＃WPF控件生成PDF文档。这是我的。

结果出了一半的对象，如何自动分页？
下面是我的代码：

System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => fixedDoc = new FixedDocument()));
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => fixedDoc1 = new FixedDocument()));
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => pageContent = new PageContent()));
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => pageContent1 = new PageContent()));
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => fixedPage = new FixedPage()));
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => fixedPage1 = new FixedPage()));

        var visual = Child as UIElement;
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => (Content).Children.Remove(visual)));
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => fixedPage.Children.Clear()));
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => fixedPage.Children.Add(visual)));
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => ((System.Windows.Markup.IAddChild)pageContent).AddChild(fixedPage)));
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => fixedDoc.Pages.Add(pageContent)));

        // write to PDF file
        string tempFilename = "temp.Xps";
        File.Delete(tempFilename);
        XpsDocument xpsd = new XpsDocument(tempFilename, FileAccess.ReadWrite);
        XpsDocumentWriter xw = XpsDocument.CreateXpsDocumentWriter(xpsd);
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => xw.Write(fixedDoc)));
        System.Windows.Application.Current.Dispatcher.Invoke(new System.Action(() => xpsd.Close()));
        filename = filepath + DateTime.Now.ToString("yyyyMMddHHmmss") + "-" + title_ + ".pdf";
        PdfSharp.Xps.XpsConverter.Convert(tempFilename, filename, 1);

        var visual2 = Child2 as UIElement;
        Application.Current.Dispatcher.Invoke(new Action(() => (Content).Children.Remove(visual2)));
        Application.Current.Dispatcher.Invoke(new Action(() => fixedPage1.Children.Clear()));
        Application.Current.Dispatcher.Invoke(new Action(() => fixedPage1.Children.Add(visual2)));
        Application.Current.Dispatcher.Invoke(new Action(() => ((System.Windows.Markup.IAddChild)pageContent1).AddChild(fixedPage1)));
        Application.Current.Dispatcher.Invoke(new Action(() => fixedDoc1.Pages.Add(pageContent1)));

        // write to PDF file
        string tempFilename2 = "temp2.Xps";
        File.Delete(tempFilename2);
        XpsDocument xpsd2 = new XpsDocument(tempFilename2, FileAccess.ReadWrite);
        XpsDocumentWriter xw2 = XpsDocument.CreateXpsDocumentWriter(xpsd2);
        Application.Current.Dispatcher.Invoke(new Action(() => xw2.Write(fixedDoc1)));
        Application.Current.Dispatcher.Invoke(new Action(() => xpsd2.Close()));
        filename2 = filepath + DateTime.Now.ToString("yyyyMMddHHmmss") + "-" + title_ + ".pdf";
        PdfSharp.Xps.XpsConverter.Convert(tempFilename2, filename2, 1);

Answer 1

PDFsharp不会自动分页符。

我建议他人使用其图表进行操作：仅显示较大的图表（10、20、30左右），并将较小的图表总结为“其他”。这样，图例将适合在一页上，并且可以避免图表中出现“零宽度”饼图。

这实际上不是您问题的答案，但这是一种解决方法，还符合良好实践。

如何自动分页符PDFsharp文档？

1 个答案: