C＃從.XPS文檔中提取文本

Question

我一直在使用另一個StackOverflow這個問題的答案作為解決這個問題的參考，但是我遇到了一個問題。 我在FixedDocumentSequence收到一個錯誤，說無法找到它。 我已經添加了對PresentationCore ， PresentationFramework ， WindowsBase和ReachFramework ，我不太確定是否需要為FixedDocumentSequence添加另一個引用。

這是我的代碼：

public string convertXPS(string fileName)
    {

        XpsDocument _xpsDocument = new XpsDocument(fileName, System.IO.FileAccess.Read);
        IXpsFixedDocumentSequenceReader fixedDocSeqReader = _xpsDocument.FixedDocumentSequenceReader;
        IXpsFixedDocumentReader _document = fixedDocSeqReader.FixedDocuments[0];
        FixedDocumentSequence sequence = _xpsDocument.GetFixedDocumentSequence();
        string _fullPageText = "";

        for (int pageCount = 0; pageCount < sequence.DocumentPaginator.PageCount; ++pageCount)
        {
            IXpsFixedPageReader _page = _document.FixedPages[pageCount];
            StringBuilder _currentText = new StringBuilder();
            System.Xml.XmlReader _pageContentReader = _page.XmlReader;

            if (_pageContentReader != null)
            {
                while (_pageContentReader.Read())
                {
                    if (_pageContentReader.Name == "Glyphs")
                    {
                        if (_pageContentReader.HasAttributes)
                        {
                            if (_pageContentReader.GetAttribute("UnicodeString") != null)
                            {
                                _currentText.
                                  Append(_pageContentReader.
                                  GetAttribute("UnicodeString"));
                            }
                        }
                    }
                }
            }

            _fullPageText += _currentText.ToString();
        }

        return _fullPageText;




    }

Answer 1

[STAThread]
static void Main(string[] args)
{

    try
    {
        XpsDocument _xpsDocument = new XpsDocument(@"C:\Users\admin-\Desktop\testing.xps", System.IO.FileAccess.Read);
        IXpsFixedDocumentSequenceReader fixedDocSeqReader = _xpsDocument.FixedDocumentSequenceReader;
        IXpsFixedDocumentReader _document = fixedDocSeqReader.FixedDocuments[0];
        FixedDocumentSequence sequence = _xpsDocument.GetFixedDocumentSequence();
        string _fullPageText = "";

        for (int pageCount = 0; pageCount < sequence.DocumentPaginator.PageCount; ++pageCount)
        {
            IXpsFixedPageReader _page = _document.FixedPages[pageCount];
            StringBuilder _currentText = new StringBuilder();
            System.Xml.XmlReader _pageContentReader = _page.XmlReader;

            if (_pageContentReader != null)
            {
                while (_pageContentReader.Read())
                {
                    if (_pageContentReader.Name == "Glyphs")
                    {
                        if (_pageContentReader.HasAttributes)
                        {
                            if (_pageContentReader.GetAttribute("UnicodeString") != null)
                            {
                                _currentText.
                                  Append(_pageContentReader.
                                  GetAttribute("UnicodeString"));
                            }
                        }
                    }
                }
            }

            _fullPageText += _currentText.ToString();
        }
    }
    catch(Exception e)
    {

    }
}  

我不認為代碼有太大的變化，嘗試添加[STAThread]幫助我讀取xps，我也只使用上面提到的參考來讀取文件，我也得到了相同的錯誤，但不知何故解決了它，你得到90％的結果
另請參閱添加System.Windows.Documents;需要哪個引用System.Windows.Documents;