QTableView has constant number of rows

[tomeks]

Hello,

I've got a little problem with QTableView and my own model subclassed from QAbstractTableView. The model is read only, user can change/add data using external dialog. When I add some data, table has still the same number of rows and new data doesn't appear. I know the data is correctly added. When I remove some data from a model, number of rows doesn't change either, last rows of the table just becomes empty. Here is header of my model:

class EmployeesTableModel : public QAbstractTableModel {
Q_OBJECT
public:
    EmployeesTableModel( QObject* parent = 0 );
    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    int columnCount ( const QModelIndex & parent = QModelIndex() ) const;
    QVariant data(const QModelIndex &index, int role) const;
    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
    void setEmployeesList( std::vector<WPEmployee>* employees );
private:
    std::vector<WPEmployee>* _employees;
};

class EmployeesTableModel : public QAbstractTableModel {
Q_OBJECT
public:
    EmployeesTableModel( QObject* parent = 0 );
    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    int columnCount ( const QModelIndex & parent = QModelIndex() ) const;
    QVariant data(const QModelIndex &index, int role) const;
    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
    void setEmployeesList( std::vector<WPEmployee>* employees );
private:
    std::vector<WPEmployee>* _employees;
};

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thanks for any help