Marc Fischer writes:

how is it possible to convert a string into my own zclass type? I get a String from a form and want to do some operation like string.manage_addFile(... on it. So what to do ??? Perhaps some out there is able to help ... "_.getitem(string)" converts a string into an object.

Probably, you will not get a "zclass type". But such a type would probably not have a "manage_addFile" method anyway. Do you mean "Z Instance" rather than "zclass type"? Dieter