Show: Object Pascal C++
E2430 for-in statement cannot operate on collection type '%s' (Object Pascal)
From Appmethod Topics
A for-in statement can only operate on the following collection types:
- Primitive types that the compiler recognizes, such as arrays, sets or strings
- Types that implement IEnumerable
- Types that implement the GetEnumerator pattern as documented in the Object Pascal Language Guide
Ensure that the specified type meets these requirements.