entitySelection.contains( )

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4D v19

Description

The entitySelection.contains( ) method returns true if entity reference belongs to the entity selection, and false otherwise.

In entity, specify the entity to search for in the entity selection. If entity is Null, the method will return false.

If entity and the entity selection do not belong to the same dataclass, an error is raised.

Example

 C_OBJECT($employees;$employee)

 

 $employees:=ds.Employee.query("lastName=:1";"H@")

 $employee:=ds.Employee.get(610)

 

 If($employees.contains($employee))

    ALERT("The entity with primary key 610 has a last name beginning with H")

 Else

    ALERT("The entity with primary key 610 does not have a last name beginning with H")

 End if