Adding strings in QTreeWidget ?

[jpn]

Just follow the steps above.. Did you initialize the check state?

item->setFlags(item->flags() | Qt::ItemIsUserCheckable); // default flags + checkable
item->setCheckState(0, Qt::Unchecked); // you must also initialize the state

item->setFlags(item->flags() | Qt::ItemIsUserCheckable); // default flags + checkable
item->setCheckState(0, Qt::Unchecked); // you must also initialize the state

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