How to read null value from QTableWidget?

[aurora]

In my QTableWidget, there exist some cells whose values are Null(it contains nothing)
But when i'm trying to read table widget, if it encounters null cell, program crashes...
How can i get rid of this problem?

[maxim.prishchepa]

if item at cell is null - then at cell - is nothing ;)

[aurora]

Such cells present in between, because of such null cells i'm unable to do any operation on that table....

[goetz]

@
QTableWidgetItem *item = tableWidget->item(5, 7);
if(item) {
// the item exists
// do something with it
// it is safe to call
QString t = item->text();
} else {
// the item does NOT exist
// you have a NULL pointer here
// NEVER call item->xxx here, the program will crash
// you may call this a NULL item
// if you want to do something here, create an item
// and put it into the table widget
}
@