[This is preliminary documentation and subject to change.]
Retrieves the index of a specified XmlNamespace object in the collection.
The index of the specified XmlNamespace. If the XmlNamespace is not currently a member of the collection, it returns -1.
Missing <remarks> documentation for M:NAnt.Core.Types.XmlNamespaceCollection.IndexOf(NAnt.Core.Types.XmlNamespace)
XmlNamespaceCollection Class | NAnt.Core.Types Namespace