hey there i have set up a QTableWidget called demands and is set up with a signal and slot of the type below

Qt Code: 
  1. connect(demands, SIGNAL(itemChanged(QTableWidgetItem*)), this, SLOT(obtain_values(QTableWidgetItem*)));
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but when i try to add a item to the table from a seperate slot that i have using a button - the program crashes. when i take the line above out it adds the item no problem, but i need that line to get the data from the table....is there any way to get around this so that i can get data from the table and add items outside the constructor?