How to read null value from QTableWidget?
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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?
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if item at cell is null - then at cell - is nothing ;)
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Such cells present in between, because of such null cells i'm unable to do any operation on that table....
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@
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
}
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