QString in Visual Studio 2005 has compile error

[high_flyer]

1. many of the code was generated automatically after I drew widgets using the VS embedded QT designer, ui is one of them, and the function you mentioned is there and it is automatically generated.

What do you mean by that? - did you change any of the designer genrated code?
Are you sure you are mocing all your QObject classes?
Did you include the ui_<class>.h generated by designer?

Oh, and please - use the code quotes for code, it really is hard to read it like that - thanks.