In a situation where one needs to lookup an object property via a PropertyPath (variable) without knowing beforehand what that path would be, here is an approach that may be useful:


Take for example the following helper method, OBJ_lookupPath :

C_OBJECT($1) C_TEXT($2) C_VARIANT($0) $0:=Formula from string("this."+$2).call($1)

This helper method above can be used to locate the value of a property path like this:

C_TEXT(vResult) vResult:=OBJ_lookupPath (ob;propertyPath)

For example, given the following object:

C_OBJECT(ob) ob:=New object("a";New object("b";"c"))

We could determine the value of a.b to equal c like this:

C_OBJECT(ob) ob:=New object("a";New object("b";"c")) C_TEXT(propertyPath) propertyPath:="a.b" C_TEXT(vResult) vResult:=OBJ_lookupPath (ob;propertyPath) // vResult = "c"