从XML节点读取值(Read value from XML node)

从XML节点读取值(Read value from XML node)

XML文件的格式

<Main> <Item> <ProductDescription ID="123" LongDescription="Text" Langid="1"> </Item> </Main>

我试图从XML文件中获取LongDescription值（文本）

我使用的代码

Dim doc As New XmlDocument() doc.Load(path) Dim xNList As XmlNodeList = doc.SelectNodes("//Main/Item/ProductDescription") For Each xNode As XmlNode In xNList MsgBox(xNode.OuterXml) Next

我得到的结果是

<ProductDescription ID="123" LongDescription="Text" Langid="1">

但我只是想提前感谢值Text

对不起打字错误

Format of XML File

<Main> <Item> <ProductDescription ID="123" LongDescription="Text" Langid="1"> </Item> </Main>

And i am trying to get LongDescription value (Text) from the XML file

Code i use

Dim doc As New XmlDocument() doc.Load(path) Dim xNList As XmlNodeList = doc.SelectNodes("//Main/Item/ProductDescription") For Each xNode As XmlNode In xNList MsgBox(xNode.OuterXml) Next

Result i get is

<ProductDescription ID="123" LongDescription="Text" Langid="1">

But i just want the value Text thanks in advance

Sorry for typos

最满意答案

您已经拥有xNode的元素。 您所要做的就是访问LongDescription属性。 最简单的方法是将xNode为XmlElement并使用GetAttribute -method：

Dim doc As New XmlDocument() doc.Load(path) Dim xNList As XmlNodeList = doc.SelectNodes("//Main/Item/ProductDescription") For Each xNode As XmlNode In xNList Dim longDesc = DirectCast(xNode, XmlElement).GetAttribute("LongDescription") MsgBox(longDesc) Next

You already have the element in xNode. All you have to do is to access the attribute LongDescription. The easiest way is to cast xNode to XmlElement and use the GetAttribute-method:

Dim doc As New XmlDocument() doc.Load(path) Dim xNList As XmlNodeList = doc.SelectNodes("//Main/Item/ProductDescription") For Each xNode As XmlNode In xNList Dim longDesc = DirectCast(xNode, XmlElement).GetAttribute("LongDescription") MsgBox(longDesc) Next