Creates a new resource that is relative to this resource based on the supplied resourceName.
The relative resource.
This method can accept either a fully qualified resource name or a relative resource name as it's parameter.
A fully qualified resource is one that has a protocol prefix and all elements of the resource name. All other resources are treated as relative to this resource, and the following rules are used to locate a relative resource:
'..', the current resource path is navigated backwards before the resourceName is concatenated to the current ResourcePath of this resource.
|UriFormatException||If the process of resolving the relative resource yielded an invalid URI.|
|NotSupportedException||If this resource does not support the resolution of relative resources (as determined by the value of the SupportsRelativeResources property).|