xml - 使用 VBA 和 xPath 遍历 XML 文件

Question

我无法在 MS Project VBA 代码中使用 xPath 解析/提取 XML。

为什么我不能在这个节点中选择一个节点？

Set nodes = xml.SelectNodes("/config/ProjectFile")
For Each node In nodes
    With Me.lbProjList
      '.AddItem (xmlText(node.SelectSingleNode("/FileName")))
      '.Column(1, i) = xmlText(node.SelectSingleNode("/LastSaveDate"))
    End With
    i = i + 1
    Debug.Print i & " file " & node.xml ' Shows the XML I expected
    Debug.Print "  Name: " & node.SelectSingleNode("/FileName").Text ' Doesn't work! Error 91
Next node

我很乐意得到一些帮助!!!

谢谢!

---

完整的 VBA 代码如下:

Private Sub ProjListFill()
  Dim i As Integer
  Dim xml As MSXML2.DOMDocument60
  Dim nodes As MSXML2.IXMLDOMNodeList 'CustomXMLNodes???
  Dim node As MSXML2.IXMLDOMNode 'CustomXMLNode???
  Dim n As CustomXMLPart 'CustomXMLNode???

  ' clear form before fill it
  Me.lbProjList.Clear
  Me.txtHeadline.value = ""
  Me.txtUpdateURL.value = ""
  Me.txtBoxParam.value = ""
  Me.txtBoxPrefix.value = ""

  Set xml = readXML(CustomProperty("XMTMLMonitoring_AppPath") & "\" & m2w_config("SubFolder") & "\" & m2w_config("SubFolderData") & "\" & m2w_config("XMLConfigFileName"))

  i = 0
  Set nodes = xml.SelectNodes("/config/ProjectFile")
  For Each node In nodes
    With Me.lbProjList
      '.AddItem (xmlText(node.SelectSingleNode("/FileName")))
      '.Column(1, i) = xmlText(node.SelectSingleNode("/LastSaveDate"))
    End With
    i = i + 1
    Debug.Print i & " file " & node.xml ' Shows the XML I expected        Debug.Print "  Name: " & node.SelectSingleNode("/FileName").Text ' Doesn't work! Error 91
  Next node

  Debug.Print i & " Project files found in config.xml"

  ' fill text boxes
  Me.txtHeadline.value = xmlText(xml.SelectSingleNode("/config/Custom/Headline"))
  Me.txtUpdateURL.value = xmlText(xml.SelectSingleNode("/config/Custom/UpdateURL"))
  Me.txtBoxParam.value = xmlText(xml.SelectSingleNode("/config/Custom/BoxParam"))
  Me.txtBoxPrefix.value = xmlText(xml.SelectSingleNode("/config/Custom/BoxPrefix"))

ExitProjListFill:
  Exit Sub
End Sub

这是 XML

<config id="config" ConfigSaveDate="2011-03-31 21:32:55" ConfigSchemaVersion="1.02">
    <Custom> 
        <DateFormat>yyyy-mm-dd hh:mm:ss</DateFormat>
        <Headline>Project Overview</Headline>
        <UpdateHref></UpdateHref>
        <BoxParam>ModelYear</BoxParam><BoxPrefix>MY </BoxPrefix>
    </Custom>
    <Program>
        <DateFormat>yyyy-mm-dd hh:mm:ss</DateFormat> 
    </Program>
    <ProjectFile ProjectFileName="projectfile1.mpp">
        <RevisionNumber>201</RevisionNumber> 
        <FileName>projectfile1.mpp</FileName> 
        <LastSaveDate>2011-03-23 16:45:19</LastSaveDate> 
    </ProjectFile>
    <ProjectFile ProjectFileName="projectfile2bedeleted.mpp">
        <RevisionNumber>115</RevisionNumber> 
        <FileName>projectfile2b.mpp</FileName> 
        <LastSaveDate>2011-03-31 21:12:55</LastSaveDate> 
    </ProjectFile>
    <ProjectFile ProjectFileName="projectfile2.mpp">
        <RevisionNumber>315</RevisionNumber> 
        <FileName>projectfile3.mpp</FileName> 
        <LastSaveDate>2011-03-31 21:32:55</LastSaveDate> 
    </ProjectFile>
</config>

Answer 1

不使用绝对路径，

node.SelectSingleNode("/FileName").Text

尝试使用相对路径(没有/):

node.SelectSingleNode("FileName").Text

免责声明:由于您没有向我们展示您的 xml 文件示例，这主要是推测...