<root>
<A testId ="test">
<B id="ABC">one
</B>
<B id="ZYZ">two
</B>
<B id="QWE">three
</B>
<B>four
</B>
</A>
</root>
Need to extract attribute value of testId for the node <A>.I'm using following c# code but, its throwing null exception.
doc.XPathSelectElement("//A/@testId")
Any help appreciated!
You can't get attributes with XPath (actually XPathSelectElement method names states, that its purpose is selecting element). So, you should select element, and then get its attribute (assume you are using Linq to XML. If not I suggest you to start doing this):
(string)doc.XPathSelectElement("//A").Attribute("testId")
Actually there is no benefit of XPath usage in this case:
(string)doc.Root.Element("A").Attribute("testId")
Value property. If attribute or element is not found, then .Value will throw NullReferenceExceptionSuppose you have xml file XMLFile1.xml then try below code it will give u result test
XDocument xDoc = XDocument.Load("XMLFile1.xml");
var test = xDoc.Root.Element("A").Attribute("testId").Value;
Update :-
As suggested by Sergey usage of casting is safer than access to Value property so updated code as below
var test = (string)xDoc.Root.Element("A").Attribute("testId");