Unsolved QTreeWidget Delete Last Item
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hi
when QTreeWidget just have 1 item & if i want delete the item application crash & when have more than 1 item work fine, this is my code :ui->TreeWidget->takeTopLevelItem(currentItem);
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Hi,
Do you have a stack trace ?
Are you sure currentItem is valid ?
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@SGaist Hi
No, i don't have stack trace & currentItem is valid even i test whit this code when i have only 1 item:ui->TreeWidget->takeTopLevelItem(0);
and app crash
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Maybe there is some side effect even that happens which is actually the source of the crash. For example, you might have a problem if you don't handle the signal itemSelectionChanged() properly (i.e. you don't expect a no-selection case).
I tried this without problems:
while(d_machine_parameter_tree->topLevelItemCount()) { d_machine_parameter_tree->takeTopLevelItem(0); }
Qt 5.6.0, OSX 10.10.5
Note: You should delete the returned widget otherwise it is a memory leak.