{ Permanent | Temporary }

Permanent	A control with this style applied can be destroyed only by using the DESTROY statement or when the parent window is destroyed. A permanent control is more efficient than a "temporary" one since it is not created each time a DISPLAY statement is executed. This style is set by default.
Temporary	Temporary controls are destroyed when a DESTROY statement is executed, when the parent window is destroyed, when another control is created in its same position, or when a Screen Section containing a BLANK SCREEN keyword is displayed. Temporary controls are less efficient than "permanent" ones since they are created each time a DISPLAY statement is executed.

 

Example - Define a date-entry control that is temporary

screen section. ...   03 screen-1-de-2 Date-Entry      line 28.5      column 49.7      size 13.6 cells       lines 4.3 cells       id 18      century-date      value-format davf-yyyymmdd      calendar-font Default-Font      temporary      .