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Re: my program crash when I use external slot
You pass a null pointer at getdata.cpp:12#3 0x0098f01f in QLineEdit::setText (this=0x0, text=...) at widgets\qlineedit.cpp:382
#4 0x00401d85 in GetData::setItemCountity (this=0x9a301f0) at getdata.cpp:12
It seems you did not initialize the addressWholesaleAdd variable.
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