property FormatConditionalAppearance.Expression as String
Specifies the conditional expression that determines whether the current format is applied on the pivot's data.

TypeDescription
String A String expression that defines the conditional-expression that needs to match the value, so the current format is applied to the cell. For instance, "len(value) = 0" indicates any empty value.
The Expression property defines the conditional expression that determines whether the current format is applied on the pivot's value. The Expression parameter of the Add method, is equivalent with the Expression property. When the current format is applied to a column, the Expression is evaluated ( value keyword in the Expression indicates the value in the column ), and if it is True, the current format is applied to the cell, else it is not. The ContextEditExpression property indicates whether the item of the current conditional-format object in the control's content menu displays/edits the conditional expression, at runtime. The FormatConditionalAppearance format is not applied to any value, if the expression is not valid ( empty or syntactically incorrect ).

The expression supports the following keywords:

This property/method supports predefined constants and operators/functions as described here.