CLICollection :: SetAttributes - Data conversion rules

The data conversion package performs automatically data conversion whenever required. Data conversion returns always a result, even when converting a collection into a string, which might be an empty value of the given type, when the conversion is not supported. A warning or error message indicates the problem in this case. In this case the result of the operation is an empty value, again.

Since data formats can be determined in many cases at run-time, only, they are not checked at compilation time.