Asp.net 查询XML文件-提取某些数据

我有一个XML文件，如下所示：

这只是一个片段，在这个XML中大约有100个表

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结论——我有一个XML文件，里面有大约100个表。我有一个ROW20 ID，希望查询XML文件并返回所有表

现在没有时间回答，但值得签出。您可以将其加载到数据集ds.ReadXml。。。然后遍历每个表并对每个表执行SELECTROW20 ID='A364A37BFC9D4B4186DE735BC0DFB01A'。这将为您提供一个DataRow数组，您可以检查其计数。我相信其他人会想出一种更好的使用XML的方法，但如果其他方法都失败了，这种方法就行了。

<NewDataSet>
<xs:schema id="NewDataSet" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema"         xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
  <xs:complexType>
    <xs:choice minOccurs="0" maxOccurs="unbounded">
      <xs:element name="Table">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="row1" type="xs:string" minOccurs="0" />
            <xs:element name="row2" type="xs:int" minOccurs="0" />
            <xs:element name="row3" type="xs:string" minOccurs="0" />
            <xs:element name="row4" type="xs:string" minOccurs="0" />
            <xs:element name="row5" type="xs:string" minOccurs="0" />
            <xs:element name="row6" type="xs:string" minOccurs="0" />
            <xs:element name="row7" type="xs:decimal" minOccurs="0" />
            <xs:element name="row8" type="xs:decimal" minOccurs="0" />
            <xs:element name="row9" type="xs:string" minOccurs="0" />
            <xs:element name="row10" type="xs:int" minOccurs="0" />
            <xs:element name="row11" type="xs:string" minOccurs="0" />
            <xs:element name="row12" type="xs:string" minOccurs="0" />
            <xs:element name="row13" type="xs:string" minOccurs="0" />
            <xs:element name="row14" type="xs:string" minOccurs="0" />
            <xs:element name="row15" type="xs:string" minOccurs="0" />
            <xs:element name="row16" type="xs:int" minOccurs="0" />
            <xs:element name="row17" type="xs:int" minOccurs="0" />
            <xs:element name="row18" type="xs:string" minOccurs="0" />
            <xs:element name="row19" type="xs:string" minOccurs="0" />
            <xs:element name="row20" type="xs:string" minOccurs="0" />
            <xs:element name="row21" type="xs:int" minOccurs="0" />
            <xs:element name="row22" type="xs:string" minOccurs="0" />
            <xs:element name="row23" type="xs:string" minOccurs="0" />
            <xs:element name="row24" type="xs:boolean" minOccurs="0" />
            <xs:element name="row25" type="xs:string" minOccurs="0" />
          </xs:sequence>
        </xs:complexType>
      </xs:element>
    </xs:choice>
  </xs:complexType>
</xs:element>
</xs:schema>
<Table>
<row1>9074A454308A4460AE7A557A294636E0</row1>
<row2>2</row2>
<row3>561B2BDC1A04455A8A2BC07FDB0D114C</row3>
<row4>3AJPUL78</row4>
<row5>Cancelled</row5>
<row6>09/10/2012</row6>
<row7>1562.8600</row7>
<row8>1537.8600</row8>
<row9>Valid</row9>
<row10>1</row10>
<row11>GBP</row11>
<row12>##,##0.00</row12>
<row13>Valid</row13>
<row14>Valid</row14>
<row15>Correct</row15>
<row16>943</row16>
<row17>26</row17>
<row18>Right</row18>
<row19>Mr</row19>
<row20>A364A37BFC9D4B4186DE735BC0DFB01A</row20>
<row21>1</row21>
<row22>Firstname</row22>
<row23>Fwtxweb1</row23>
<row24>false</row24>
<row25>Home</row25>

Protected Sub dtb_client_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)

    '**THIS FIND THE ID OF THE PARAMETER THAT ROW20 NEEDS**'
    Dim country As String = TryCast(dtb_client.SelectedRow.FindControl("txtInsuredpartyID"), Label).Text

    '**THIS PUT THE STRING INTO A XML FILE**'
    Dim pols As String = CType(Session("brokerPolicies"), String)
    Dim XMLFilitered As XmlDocument = New XmlDocument()
    XMLFilitered.LoadXml(pols)

    '**I AM TRYING TO QUERY THE XML FILE AND BRING BACK THE TABLES THAT HAVE THE 
    Dim buff As XmlNodeList = XMLFilitered.SelectNodes("//NewDataSet/Table/ROW20[.='A364A37BFC9D4B4186DE735BC0DFB01A']")

    Dim returnstr As String = ""

    For Each item As XmlNode In buff

        returnstr += item.OuterXml

    Next
End Sub