Collection of namespaces in the current stack.
WebDAV allows non-standard properties to be specified through XML namespaces.
The collection is filled automatically when retrieving DAV responses, but must be filled manually when requesting non-standard properties.
If the DAV URI is not found in the namespaces collection, it will be added as the default namespace when generating a request. The DAV namespace URI is "DAV:".
This collection is indexed from 0 to Count - 1.
This property is not available at design time.