Question

这是我用来查找Sharepoint列表项的DOM文档中某个节点的内部文本的代码：

'parse XML of a list item to get the field value
Private Function getFieldValueFromXml(xml As Variant, fieldName As Variant) As Variant

Dim node As IXMLDOMNode
Dim namespaceAndName As String

'set namespace string for XPath search, using field name
namespaceAndName = "/d:" & fieldName

Set domDoc = New DOMDocument60

'load DOM document with XML
domDoc.LoadXML xml

'set selection namespace for XPath search
domDoc.SetProperty "SelectionNamespaces", "xmlns:d='http://schemas.microsoft.com/ado/2007/08/dataservices'"

'get first node with this namespace (a list item should have only one node with a given field name)
Set node = domDoc.SelectSingleNode(namespaceAndName)

getFieldValueFromXml = node.text

End Function

当我按ID号检索列表项时，这可以正常工作，但是当我使用$filter这样得到它时：

https://sps.utility.xyz.com/Sites/ABC/_api/web/lists/GetByTitle('Stations')/items?$filter=Title eq '020'

然后当我尝试通过调用getFieldValueFromXml(result,"Id")找到一个值时，它找不到该节点。以下是上述REST调用返回的XML：

<?xml version="1.0"?>
<feed xml:base="https://sps.utility.abc.com/Sites/asdaC/_api/" xmlns="http://www.w3.org/2005/Atom" xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns:georss="http://www.georss.org/georss" xmlns:gml="http://www.opengis.net/gml">
<id>5a608d14-721b-4076-9ed0-91eccd9b70ec</id>
<title/>
<updated>2017-10-04T22:24:47Z</updated>
<entry m:etag="&quot;42&quot;">
<id>Web/Lists(guid'f9565c6c-334c-4953-a117-5dd9b0cd38a5')/Items(415)</id>
<category term="SP.Data.StationsListItem" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme"/>
<title/>
<updated>2017-10-04T22:24:47Z</updated>
<author>
<name/>
</author>
<content type="application/xml">
<m:properties>
<d:FileSystemObjectType m:type="Edm.Int32">0</d:FileSystemObjectType>
<d:Id m:type="Edm.Int32">415</d:Id>
<d:ReferenceImages m:type="SP.FieldUrlValue">
<d:Description>some number 131553</d:Description>
<d:Url>http://google.com</d:Url>
</d:ReferenceImages>
<d:CDScope m:type="Edm.Boolean">true</d:CDScope>
<d:ID m:typ
e="Edm.Int32">415</d:ID>
<d:Modified m:type="Edm.DateTime">2017-10-04T20:15:54Z</d:Modified>
<d:Created m:type="Edm.DateTime">2016-03-27T19:21:49Z</d:Created>
<d:AuthorId m:type="Edm.Int32">50</d:AuthorId>
<d:EditorId m:type="Edm.Int32">330</d:EditorId>
<d:OData__UIVersionString>18.0</d:OData__UIVersionString>
<d:Attachments m:type="Edm.Boolean">false</d:Attachments>
<d:GUID m:type="Edm.Guid">f31fcf07-0d81-442e-8621-56d09a8507f6</d:GUID>
</m:properties>
</content>
</entry>
</feed>

在getFieldValueFromXml()中，.SelectSingleNode(namespaceAndName) call returns Nothing. How should I modify my code to pick up the Id`值？

Answer 1

看起来你只是在搜索根。

尝试用以下内容搜索死者：

.SelectSingleNode(".//d:Id")

为什么这个XPath表达式找不到我想要的节点.SelectSingleNode（）？

1 个答案: