Example gotocell2 in "C++ GUI Programming with Qt 4 (2nd Edition)" chapter 2
I'm new to Qt. Just started learning with the example in "C++ GUI Programming with Qt 4 (2nd Edition)". I ran the example under qt-book\chap02\gotocell2 but the OK button is not enabled although a valid string is input such as "A12". Debugged it, seems the slot on_lineEdit_textChanged() in gotocelldialog.cpp is never called. I'm using Qt 5.0.2. Has anyone encountered it? Thanks in advance.