.SubCollection (gb.db)
This virtual class is the parent class of every collection of sub-objects.
It is only intended for internal use inside native components.
This class is virtual.
This class is not creatable.
This class acts like a 
read-only array.
This class is 
enumerable with the 
FOR EACH keyword.
 
Properties
| 
Count  
 | 
Returns the number of elements in the collection of sub-objects.
 | 
Methods
| 
Exist  
 | 
Returns if a specified element exists in the collection of sub-objects.
 | 
| 
Refresh  
 | 
Refreshes the collection contents by clearing its internal cache.
 |