View this page in the latest version of Appian. false() Function Share Share via LinkedIn Reddit Email Copy Link Print On This Page Function false( returns ) Returns the Boolean value false. See also: if(): Evaluates a logical statement and returns different results if the logical statement returns true or false. true(): The opposite to the false() function; returns the boolean value true. Parameters Keyword Type Description returns Boolean Returns the boolean value false. Returns Boolean Usage considerations Using the false() function is equivalent to using false (without calling the function) in any expression. If calling the false() function with parentheses, any parameters provided to the function are ignored. An easy way to check if a value is either null or true is to make a comparison to false using the <> operator. For example, the following expressions result in the same outcome: local!value <> false() or(local!value = true(), a!isNullOrEmpty(local!value)) Examples Basic example 1 false() Returns false. Using false() as a user property 1 2 3 4 5 6 7 8 9 10 a!localVariables( local!user1Active: false(), local!user2Active: false(), local!user3Active: true(), and( local!user1Active, local!user2Active, local!user3Active ) ) Returns false because not all of the users are currently active. Using false() for field configurations Paste the following example into an interface to test the expression. 1 2 3 4 5 6 7 8 9 10 11 12 a!boxLayout( label: "Box", contents: { a!textField( value: "Test", readOnly: true() ) }, isCollapsible: false(), showBorder: false(), showShadow: false() ) Feature compatibility The table below lists this function's compatibility with various features in Appian. Feature Compatibility Note Portals Compatible Offline Mobile Compatible Sync-Time Custom Record Fields Compatible Can be used to create a custom record field that only evaluates at sync time. Real-Time Custom Record Fields Incompatible Custom record fields that evaluate in real time must be configured using one or more Custom Field functions. Process Reports Compatible Process Events Compatible Feedback Was this page helpful? SHARE FEEDBACK Loading...