As noted above, in the indirect deferred method, dynstruct members are referenced by the combination of the dynstruct variable, .@, and then a string variable containing the actual name of the dynamic member. If that member is an array, the name should have a "(" appended to it.
The variable containing the member name can only be a standard scalar or array string variable, e.g.
ds.@fname$ ! scalar variable referencing scalar member
ds.@fname$(x) ! array variable referencing scalar member
ds.@fname$(x+y)(a*b) ! array variable referencing array member
What you can NOT do is use other kinds of string variables or expressions, such as literal strings, ordmaps, structure members, dot variables, etc. None of the following are legal:
ds.@"price" ! illegal syntax
ds.@a(b).c ! illegal syntax
ds.@$map(a$) ! illegal syntax
Note that in order to use indirect deferred syntax to reference an array element within the dynstruct, you must also use an array to reference to the field name, as in the "array variable referencing array member" example above. Refer back to the section on Array Dynstruct Members in the Reference / Usage Dynamic topic for further explanation.
