Logical Functions in Expressions

Logical functions perform an operation or comparison on objects and expressions.


The following information describes the functions available for building expressions.

IfIF(boolean_condition, expression1, expression2)If the condition evaluates to True, expression1 is returned. If the condition evaluates to False, expression2 is returned.
Note: This function accepts any type for its second and third parameters, as long as they are both of the same type.
IF (5>4, 1, 0) = 1
IsNullIsNull(object)Determines whether or not a given expression is type DBNull.IsNull(myLocalVariable)