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.