QTableView中加入Check列实现，无需Delegate（使用::data()，Qt原生支持）

class MyModel : public QSqlQueryModel {

Q_OBJECT

public:

MyModel(QObject *parent = 0);

Qt::ItemFlags flags(const QModelIndex &index) const;

QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;

........

};

Qt::ItemFlags MyModel::flags(const QModelIndex &index) const {

Qt::ItemFlags flags = QSqlQueryModel::flags(index);

if (index.column() == aColWithCheckbox)

flags |= Qt::ItemIsUserCheckable;

else

flags |= Qt::ItemIsEditable;

return flags;

}

QVariant MyModel::data(const QModelIndex &index, int role) const {

QVariant value = QSqlQueryModel::data(index, role);

if (role == Qt::CheckStateRole && index.column() == aColWithCheckbox)

return (QSqlQueryModel::data(index).toInt() != 0) ? Qt::Checked : Qt::Unchecked;

else

return value;

}