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我目前正在尝试从传递给我的方法的文件路径中读取 XML 节点。

Public Function ReadXMLForIsite(xmlFileName As String)
    Dim IsitePath As String
    Dim doc As New XPathDocument(xmlFileName)
    Dim nav As XPathNavigator
    Dim iter As XPathNodeIterator

    nav = doc.CreateNavigator
    iter = nav.Select("GovTalkMessage/Header") 'Node name
    'Loop through the records in that node
    While iter.MoveNext
        Dim lstNav As XPathNavigator
        'Get the data we need from the node
        Dim iterNews As XPathNodeIterator
        lstNav = iter.Current
        iterNews = lstNav.SelectDescendants(XPathNodeType.Element, False)
        'Loop through the child nodes
        While iterNews.MoveNext
            Debug.WriteLine(iterNews.Current.Name & ": " & iterNews.Current.Value)
        End While
    End While

    Return IsitePath
End Function

每次我运行此方法（即使使用不同的节点名称）时，变量“iter”都会指出“调试器显示代理是一种类型，不能用作表达式”。这发生在 while 语句之前，因此不会进入。任何帮助将不胜感激。谢谢！

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1 回答 1

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尝试将您的加载Xml到XDocument.

Dim xdoc As XDocument = XDocument.Load("X:\Jacob.Freeman\RTI\TestXML\0001R.xml")
Dim headerNode = xdoc.Descendants.First(Function(x) x.Name.LocalName = "Header")
For Each desc In headerNode.Descendants()
  Console.WriteLine(desc.Name.LocalName + ":" + desc.Value)
Next
Console.ReadLine()
于 2012-11-23T16:35:19.793 回答