Returns the context member set of a hierarchy including the Subquery content.
Allows to retrieve information about hierarchy members in the current context. This function is a modification
from the 'standard' currentMember function.
The context is defined as following:
1) the calculated member's tuple context ( e.g ( [Time]., [Measures].[Year Diff.] ) )
2) the tuple being iterated (e.g., Sum,(), ...). Note Eval() function has no current tuple.
3) the cell tuples from the axes being evaluated.
4) the slicer content.
5) the subSelect content.
6) the default members.
Note, between axes and subselect context members, an autoexist is applied (duplicated and not filtering members are removed).
As a difference to the currentMember function, the contextMember will not work across hierarchies and will
use the subQuery definition.
Special Examples (errors, null, ...)
Find here the value of the XMLA properties when not specified otherwise.