Gets or sets a label to identify an instance of the current report item
within the client UI (to provide a user-friendly label for searching).
Hierarchical listing of report item and group labels within the UI
(the Document Map) should reflect the object containment hierarchy in
the report definition.
Peer items should be listed in left-to-right top-to-bottom order.
If the expression returns null, no item is added to the Document Map.
Not used for report items in the page header or footer.
Namespace:
C1.C1Rdl.Rdl2008Assembly: C1.C1Report.2 (in C1.C1Report.2.dll)