Hi,

pyDefault is the default Data Transform rule that it is invoked generally when the first instance of the class it is created to set the default values.

In the Page List scenario you have potentially two different pyDefault rules:

  - Parent class which has a Page List child property.

  - Child class which is the one defined in the Page List property.

For example a Computer has a list of Components. Computer.Components(). You could simply preset some components when the Computer class is created by using a pyDefault data transform like this:

 In the context of Computer:

  set .Components(1).Type="Video"

  set .Components(2).Type="Storage"

  set .Components(3).Type="Memory"

The problem doing it like this is that the Components class property pxObjClass won't be correctly set. The right way of doing it would be:

In the context of Computer:

  update page .Components(1)

    in the context of Components(1)

      apply data transform pyDefault with parameter (ComponentType) set to "Video"

        set .Type = Param.ComponentType

  update page .Components(2)

    in the context of Components(2)

      apply data transform pyDefault with parameter (ComponentType) set to "Storage"

        set .Type = Param.ComponentType

  update page .Components(3)

    in the context of Components(3)

      apply data transform pyDefault with parameter (ComponentType) set to "Memory"

        set .Type = Param.ComponentType

You could do similarly using Activity rules and using Page-New indicating the pyDefault data transform rule.

Regards,

Angel