IsNull

Checks to see if a value is null. See About Null Values for more information about null values.

Syntax

IsNull(value)

Enabled For

For a description of the business object categories, see Notes on "Enabled For".

Business Object Category	Yes/No
Business Rules: Before-Save Rules	Yes
Business Rules: Calculation Rules (After Save, with or without Also Recalculate on Load)	Yes
Business Rules: Calculation Rules (Before Save or Always, without Also Recalculate On Load)	Yes
Business Rules: Calculation Rules (Before Save or Always, with Recalculate On Load)	Yes
Business Rules: Editing Rules	Yes
Business Rules: Initialization Rules	Yes
Business Rules: Read Only Rules	Yes
Business Rules: Required Rules	Yes
Business Rules: Validation Rules	Yes
Client Expressions	Yes
Object Permissions	Yes
Services	Yes
LDAP	Yes
Mobile	Yes
Quick Actions (except UI Quick Actions)	Yes
UI Quick Actions	Yes
Reports	Yes
Search/Dashboard without field references	Yes
Search/Dashboard with field references	Yes

Parameter

Parameter	Description
value	The input to evaluate.

Return Value

Boolean value. Returns true if the value parameter is null; otherwise, returns false.

Examples

IsNull("This is a test")

In the above example, the application returns false, because the input parameter is not null.

IsNull(null)

In the above example, the application returns true, because the input parameter is null.