true if there are nodes to return.
false if the reader is not positioned on an attribute node when the initial call is made or if all the attribute values have been read.
An empty attribute, such as, misc="", returns true with a single node with a value of String.Empty.
In the dnprdnext release, the recommended practice is to create System.Xml.XmlReader instances using the erload:System.Xml.XmlReader.Create method. This allows you to take full advantage of the new features introduced in this release. For more information, see Creating XML Readers.
Use this method after calling MoveToAttribute to read through the text or entity reference nodes that make up the attribute value. The XmlReader.Depth of the attribute value nodes is one plus the depth of the attribute node; it increments and decrements by one when you step into and out of general entity references.