Gets the number of distinct keys in this map.
            
    Namespace: 
   Endeca.DataAssembly: Endeca.Data (in Endeca.Data.dll) Version: 2.1.1.0 (2.1.1.620)
 Syntax
Syntax
 Remarks
Remarks
              Note that this count may be different from Count, because 
              the map may contain more than one IAttributeValue for a given key.
            





