CBOOL
Casts the value to a Boolean. Returns False for String or Numeric expressions that evaluate to zero, else returns true.
Syntax
CBOOL(Value_Expression)
Input Parameters
Value Expression
Return Value
Returns a Boolean.
Example
A calculated expression to detect if the current level of the
Order Retail445
hierarchy is the root level.
NOT CBOOL([Order Date Dimension].[Order Retail445].currentMember.LEVEL_NUMBER)