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Master Mirror Item Property

There is an issue when you use GET_ITEM_PROPERTY for certain properties on an Item which is a subordinate mirror item.
Some values such as REQUIRED and MAX_LENGTH are inherited implicitly from the Master Item, but are not returned by direct calls to GET_ITEM_PROPERTY. The MASTER_MIRROR_ITEM property allows you to access the master item from the subordinate. You can then get the properties you need directly from the master.

Get through GET_ITEM_PROPERTY Built-in

Set not settable through SET_ITEM_PROPERTY Built-in.

Constant Name: MASTER_MIRROR_ITEM

Refer to Built-in

GET_ITEM_PROPERTY

Usage Notes

Example

 if get_item_property(
   get_item_property(:SYSTEM.CURSOR_ITEM,MASTER_MIRROR_ITEM),
   REQUIRED) = 'TRUE' then
   ....