有多个根元素加载XML [英] There are multiple root elements load xml

问题描述

sRecieved = "<XmlClient>2.0</XmlClient><XmlVersion>3.0</XmlVersion>" 
Dim xml As New XmlDocument();    
xml.LoadXml(sRecieved);

有多个根元素.....我想xmlclient价值和xmlversion值

There are multiple root elements .....i want xmlclient value and xmlversion value

推荐答案

恩，是的，你的数据的不是的有效的XML文档。 （该错误信息是很清楚的 - 你有多个顶级元素。）你可以的做的它加上空根元素的有效文件：

Well yes, your data isn't a valid XML document. (The error message is pretty clear - you've got multiple top-level elements.) You could make it a valid document by adding a dummy root element:

xml.LoadXml("<root>" & sReceived & "</root>")

......但如果​​你改变任何的发送数据的机会，它会更好，如果它发送一个实际的XML文档。

... but if you get the chance to change whatever's sending the data, it would be better if it sent an actual XML document.

编辑：如果你能使用LINQ到XML，而不是的XmlDocument ，将客户端编号和版本号很容易。例如，文本：

If you're able to use LINQ to XML instead of XmlDocument, getting the client number and the version number are easy. For example, as text:

Dim clientVersion = doc.Root.Element("XmlClient").Value
Dim xmlVersion = doc.Root.Element("XmlVersion").Value 

编辑：好吧，如果你'重卡与的XmlDocument ，我相信你可以使用：

Okay, if you're stuck with XmlDocument, I believe you could use:

Dim clientVersionNode = doc.DocumentElement.GetElementsByTagName("XmlClient")(0)
Dim clientVersion = (CType(clientVersionNode, XmlElement)).InnerText

（且同样 xmlVersion ）

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