Problem in deriving class from XmlNode

[Mahesh Devjibhai Dhola]

Hi All,
I want to make a custom class in c#, which extends System.Xml.XmlNode class
of BCL.

Now in custom class, I have implement abstract methods of XmlNode class
also. Now when I am trying to run the class it gives an error that
"System.Xml.XmlNode.XmlNode() is inaccessible due to its protection level".

This error comes because XmlNode has not any public constructor. I found
XmlNode has two constructor but both are private or friend (i dont know
exactly).

I also found one MSDN article where it says that "Never derive any class
directly from XmlNode" but its just recommendation.
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/ht
ml/cpconextendingdom.asp)

Though, Microsoft has derived some of BCL classes from base XmlNode, so why
we can not derive?
System.Object
System.Xml.XmlNode
System.Xml.XmlAttribute
System.Xml.XmlDocument
System.Xml.XmlDocumentFragment
System.Xml.XmlEntity
System.Xml.XmlLinkedNode
System.Xml.XmlNotation

So i think there must be some way out of this....

So what to do to create a derived class from XmlNode?
I heard that many experts are giving their service in news groups. So please
help me out of this.

I have already derived few of my classes from XmlDocument, XmlElement,
XmlAttribute etc. So i dont want to derive from them but i want to derive
the class from XmlNode it self. Please help me to get the answer...

Thanks in Advance.

Thanking you,
Mahesh Devjibhai Dhola
"Empower yourself...."

 

[Guest]

The class is internal, so it appears you will have to compile your code into
the System.XML assembly, which is not going to happen. Not sure if you can
implement the System.Xml namespace as your namepace and get around this, but
I would bet no.

I do not understand the need for a custom node, as you would be very likely
to end up with non W3C standard XML.

---

Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA

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