How to change the value of one property from an update to a different property

This ‘How-to’ provides information on how to change the value in one property (field) when the value in a different property is updated. The following development process demonstrates how to add a simple script to a Data class to set the value of one property (MYPROP2) when the value in a different property (MYPROP1) changes.

1) Open your Data class.

2) Select the General tab >Scripts block and set the following field values:

• Type: Select a type appropriate for your script.
• Scripts: Leave the default code displayed. This is automatically generated using the class code and script type. Alternatively, enter a unique code for your script.
• Running order: Leave the numeric displayed. This is automatically generated to control the order in which the $PROPERTIES and $METHODS labels are called in the event. Alternatively, enter the running order code for your script.

3) To add your script, right-click the Scripts code and select Processing editor from the selection menu. Enter the following code:

# Properties for MYCLASS$PROPERTIESCase CURPROWhen "MYPROP1" : Gosub MYPROP1EndcaseReturn# Action to be carried out when MYPROP1 is updated = automatically set MYPROP2 to active NO$MYPROP1Case ACTION# Set MYPROP2 to active NOWhen "PROPAGATE"this.MYPROP2 = CST_ANOEndcaseReturn

4) Save your script.

5) Save and validate your Data class.