entitySelection.isOrdered( )

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4D v17.4

Description

The entitySelection.isOrdered( ) method returns true if the entity selection is ordered, and false if it is unordered.

Note: For more information, please refer to the Ordered vs Unordered entity selections paragraph.

Example

 C_OBJECT($employees;$employee)

 C_BOOLEAN($isOrdered)

 $employees:=ds.Employee.newSelection(dk keep ordered)

 $employee:=ds.Employee.get(714) // Gets the entity with primary key 714

 

  //In an ordered entity selection, we can add the same entity several times (duplications are kept)

 $employees.add($employee)

 $employees.add($employee)

 $employees.add($employee)

 

 $isOrdered:=$employees.isOrdered()

 If($isOrdered)

    ALERT("The entity selection is ordered and contains "+String($employees.length)+" employees")

 End if