Hi,

I'm still not sure it is really good idea to this dynamically, but here is a working method:

	void StoreToJson() {
		Json json;
		for (Ctrl *q = GetFirstChild(); q; q=q->GetNext()) {
			if (dynamic_cast<EditField *> (q)) {
				String id = q->GetLayoutId();
				if (id.GetCount())
					json(id, ~*q);
			}
		}
		SelectFileOut out("*.*");
		if (out.IsOpen())
			out << json << "\n";
	}

It is actually almost the same as the code you posted. Full code is in the attached archive. Just click anywhere in the window to trigger the save as dialog. I'm not sure why it didn't work for you. Only thing I can think of is that you didn't assign names to the editfields in the layout.

Honza