Question

我的XML有多个元素但是当我尝试使用LINQ解析它们时，我只得到一个元素。我的选择陈述有些不对劲，但我有一段时间了解错误。对于所有（2）InvoiceUid

，结果应该是填充了InvoiceNumber和invoiceListItems的字典

这是我的XML：

    <?xml version="1.0" encoding="utf-8"?>
    <invoiceListResponse>
      <invoiceList>
        <invoiceListItem>
          <invoiceUid>39165890</invoiceUid>
          <invoiceDate>2013-12-26</invoiceDate>
          <invoiceNumber>W10001888</invoiceNumber>
          <contactUid>8363070</contactUid>
        </invoiceListItem>
        <invoiceListItem>
          <invoiceUid>39149309</invoiceUid>
          <invoiceDate>2013-12-24</invoiceDate>
          <invoiceNumber>W100</invoiceNumber>
          <contactUid>8363070</contactUid>
        </invoiceListItem>
      </invoiceList>
    </invoiceListResponse>

和我代码的内容：

         Dim list As XmlDocument = proxy.Find(queries)

        Dim InvoiceList = XDocument.Parse(list.InnerXml)
        ' get all <InvoiceListItem> elements from the xdocumetn
        Dim InvoiceListItems = From invoiceListItem In InvoiceList...<invoiceList>
                                 Select invoiceListItem

        'go through each InvoiceListItem in InvoiceListItems
        For Each InvoiceListItem In InvoiceListItems
            Console.WriteLine("Uid is {0} and Invoice Number is {1}", InvoiceListItem...<invoiceUid>.Value, InvoiceListItem...<invoiceNumber>.Value)
            returnInvoiceList.Add(InvoiceListItem...<invoiceNumber>.Value, CType(InvoiceListItem...<invoiceUid>.Value, Integer))
        Next
        Return returnInvoiceList

Answer 1

问题是你的select语句正在选择invoiceList个元素（其中只有一个元素）。这应该符合您的预期：

Dim InvoiceListItems = From invoiceListItem In InvoiceList...<invoiceListItem>
                       Select invoiceListItem

Answer 2

啊，最后通过添加.Elements来实现它：

For Each InvoiceListItem In InvoiceListItems.Elements

如何用LINQ解析这个xml

2 个答案: