How To Get Intellisense For WSDL
...
You can use VS.NET as an XML editor, but that is all. Maybe the next
major release will have a graphical WSDL (or generally spoken Web Services
contract) designer with support to leverage existing XML Schemas.
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[Christian Weyer: Web Services & .NET
]
What you can do is save the WSDL XML
Schema
into a file and put it into the <VS.NET Install
Dir>\Common7\Packages\schemas\xml directory. Once you do this and you start
definining your instance document, as soon as you define a node with the
WSDL namespace, you'll get intellisense support for it.
Actually, the title is a little misleading as this feature of VS.NET applies
to any XML specification for which there is an XML Schema defined, including
your own!