problem in invoking event of QDateEdit embedded in QTableWidget cell

[ad3d]

i have added QTimeEdit in a QTableWidget cell using setCellWidget
its name is dt_d

Now i want to write a function on which will be triggered on dateChanged event

but the problem i am facing is its not accepting dateChanged trigger as well as its not accepting itemChanged event of QTableWidget

can some plz tell me how can i write a function which will be triggered when i change d date in QDateEdit which is embedded in a cell of a QTableWidget

ITS A BIT URGENT
PLZ HELP

THANX IN ADVANCE