how to add check box inside qtree widget?

[ChrisW67]

You already have the name of the function, QTreeWidgetItem::setFlags(), its documentation, and the Qt::ItemFlag documentation it links to. You even have the the name of the specific flag, Qt::ItemIsUserCheckable. Is it really such a difficult thing to work out?

QTreeWidgetItem *item = new QTreeWidgetItem();  
// OR QTableWidgetItem *item = new QTableWidgetItem();  
// OR QStandardItem *item = new QStandardItem();
item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsEditable | Qt::ItemIsUserCheckable);

QTreeWidgetItem *item = new QTreeWidgetItem();  
// OR QTableWidgetItem *item = new QTableWidgetItem();  
// OR QStandardItem *item = new QStandardItem();
item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsEditable | Qt::ItemIsUserCheckable);

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