WPF DocumentViewer Find-function和FixedPage文档

Question

.Net包含一个很好的控件DocumentViewer.它还提供了一个子控件,用于在加载的文档中查找文本(至少它应该执行的操作).

当插入FixedPage对象作为文档源时DocumentViewer,查找功能只是找不到任何东西.甚至不是单个字母.我还没有尝试过FlowDocument,因为文档DocumentViewer没有那么有用,并且网上的资源实际上并不存在,我现在想问一下stackoverflow社区:

使WPF的Find-Function DocumentViewer与FixedPage文档一起工作需要什么？

[顺便说一句,我不使用自定义ControlTemplates的DocumentViewer]

Answer 1

我有与FixedDocuments相同的问题.如果您将FixedDocument转换为XPS文档,那么它可以正常工作.

从FixedDocument在内存中创建XPS Document然后在DocumentViewer中显示的示例.

// Add to xaml: <DocumentViewer x:Name="documentViewer" />
// Add project references to "ReachFramework" and "System.Printing"
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.IO;
using System.IO.Packaging;
using System.Windows.Xps.Packaging;

namespace WpfApplication1
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            // Set up demo FixedDocument containing text to be searched
            var fixedDocument = new FixedDocument();
            var pageContent = new PageContent();
            var fixedPage = new FixedPage();
            fixedPage.Children.Add(new TextBlock() { Text = "Demo document text." });
            pageContent.Child = fixedPage;
            fixedDocument.Pages.Add(pageContent);

            // Set up fresh XpsDocument
            var stream = new MemoryStream();
            var uri = new Uri("pack://document.xps");
            var package = Package.Open(stream, FileMode.Create, FileAccess.ReadWrite);
            PackageStore.AddPackage(uri, package);
            var xpsDoc = new XpsDocument(package, CompressionOption.NotCompressed, uri.AbsoluteUri);

            // Write FixedDocument to the XpsDocument
            var docWriter = XpsDocument.CreateXpsDocumentWriter(xpsDoc);
            docWriter.Write(fixedDocument);

            // Display XpsDocument in DocumentViewer
            documentViewer.Document = xpsDoc.GetFixedDocumentSequence();
        }
    }
}