Problem with QTableView and QSortFilterProxyModel

Hi,

i have a model an tableview.
I set the model to the table view on the following way:

Code:

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QString searchValue = ui->lineEdit_search_clients->text();
    QSqlQueryModel *model=new QSqlQueryModel(this);
    QSortFilterProxyModel *proxyModel = new QSortFilterProxyModel(this);
 
    proxyModel->setSourceModel(model);
    proxyModel->setFilterRegExp(QRegExp(searchValue, Qt::CaseInsensitive, QRegExp::FixedString));
    proxyModel->setFilterKeyColumn(-1);
 
    connect(ui->lineEdit_search_clients, SIGNAL(textChanged(QString)),
                proxyModel, SLOT(setFilterFixedString(QString)));
    connect(proxyModel, SIGNAL(hasSelection()),
            ui->lineEdit_search_clients, SLOT(setText()));
 
 
    model->setQuery("SELECT ROWID, ClientName, ClientCity, ClientEik FROM clients");
    model->setHeaderData(0, Qt::Horizontal, QObject::tr("RowID"));
    model->setHeaderData(1, Qt::Horizontal, QObject::tr("Name"));
    model->setHeaderData(2, Qt::Horizontal, QObject::tr("City"));
    model->setHeaderData(3, Qt::Horizontal, QObject::tr("ID"));
 
 
    ui->tableView_clients->setModel(proxyModel);
    //ui->tableView_clients->setSortingEnabled(true);
    ui->tableView_clients->setColumnWidth(0,30);
    ui->tableView_clients->setColumnWidth(1,170);
    ui->tableView_clients->setColumnWidth(2,100);
    ui->tableView_clients->setColumnWidth(3,70);
    ui->tableView_clients->horizontalHeader()->setResizeMode(QHeaderView::Interactive);
    ui->tableView_clients->horizontalHeader()->setStretchLastSection(true);
    ui->tableView_clients->show();

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When i search using QSortFilterProxyModel the content in the TableView changes it's position and doesn't map the model.
Than when i try to select some row , what i see doesn't respond of what i select.

This is the selection:

Code:

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QModelIndexList selectedList = ui->tableView_clients->selectionModel()->selectedRows();
 
    QSqlQueryModel *mod=new QSqlQueryModel(this);
 
 
    int selected_row;
    int i=0;
    selected_row=selectedList.at(i).row();
 
    mod->setQuery("SELECT * FROM clients");
 
    QString ClientName = mod->data(mod->index(selected_row, 0)).toString();
    QString ClientCity = mod->data(mod->index(selected_row, 1)).toString();
    QString ClientAddress = mod->data(mod->index(selected_row, 2)).toString();
    QString ClientMol = mod->data(mod->index(selected_row, 3)).toString();
    QString ClientEik = mod->data(mod->index(selected_row, 4)).toString();
    QString ClientVat = mod->data(mod->index(selected_row, 5)).toString();
 
    //QMessageBox::information(this,"", ClientMol);
 
    emit selectedName(ClientName);
    emit selectedCity(ClientCity);
    emit selectedAddress(ClientAddress);
    emit selectedMol(ClientMol);
    emit selectedEik(ClientEik);
    emit selectedVat(ClientVat);
    //emit selectedRaw(QString::number(ClientId));
    this->close();

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Please HELP!!!

To get the correct items from the model you will have to use proxyModel->mapToSource() else you will get the row numers that the proxy uses

I don't know in which of the code i should use it?The proxyModel is declared in updateCleintTable()
and i want to get the row value in on_pushButton_select_clicked()

can you attach the full code then it is easyer to explain

form the previous piece of code you should change your selecion code

Code:

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selected_row=proxyModel->mapToSource(selectedList.at(i)).row();

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change proxyModel to the name of your proxy model

Thank you for answer so quick.
The proxyModel is declared in another place.

This is the code:

Code:

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void Clients::updateCleintTable()
{
    QString searchValue = ui->lineEdit_search_clients->text();
    QSqlQueryModel *model=new QSqlQueryModel(this);
    QSortFilterProxyModel *proxyModel = new QSortFilterProxyModel(this);
 
    proxyModel->setSourceModel(model);
    proxyModel->setFilterRegExp(QRegExp(searchValue, Qt::CaseInsensitive, QRegExp::FixedString));
    proxyModel->setFilterKeyColumn(-1);
 
    connect(ui->lineEdit_search_clients, SIGNAL(textChanged(QString)),
                proxyModel, SLOT(setFilterFixedString(QString)));
    connect(ui->lineEdit_search_clients, SIGNAL(textChanged(QString)),
            ui->tableView_clients, SLOT(setModel(proxyModel)));
 
 
 
    model->setQuery("SELECT ROWID, ClientName, ClientCity, ClientEik FROM clients");
    model->setHeaderData(0, Qt::Horizontal, QObject::tr("RowID"));
    model->setHeaderData(1, Qt::Horizontal, QObject::tr("Name"));
    model->setHeaderData(2, Qt::Horizontal, QObject::tr("City"));
    model->setHeaderData(3, Qt::Horizontal, QObject::tr("ID"));
 
 
    ui->tableView_clients->setModel(proxyModel);
    //ui->tableView_clients->setSortingEnabled(true);
    ui->tableView_clients->setColumnWidth(0,30);
    ui->tableView_clients->setColumnWidth(1,170);
    ui->tableView_clients->setColumnWidth(2,100);
    ui->tableView_clients->setColumnWidth(3,70);
    ui->tableView_clients->horizontalHeader()->setResizeMode(QHeaderView::Interactive);
    ui->tableView_clients->horizontalHeader()->setStretchLastSection(true);
    ui->tableView_clients->show();
 
}

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And another one:

Code:

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void Clients::on_pushButton_select_clicked()
{
 
    QModelIndexList selectedList = ui->tableView_clients->selectionModel()->selectedRows();
 
    QSqlQueryModel *mod=new QSqlQueryModel(this);
 
    int selected_row;
    int i=0;
    selected_row=selectedList.at(i).row();
 
    mod->setQuery("SELECT * FROM clients");
 
    QString ClientName = mod->data(mod->index(selected_row, 0)).toString();
    QString ClientCity = mod->data(mod->index(selected_row, 1)).toString();
    QString ClientAddress = mod->data(mod->index(selected_row, 2)).toString();
    QString ClientMol = mod->data(mod->index(selected_row, 3)).toString();
    QString ClientEik = mod->data(mod->index(selected_row, 4)).toString();
    QString ClientVat = mod->data(mod->index(selected_row, 5)).toString();
 
    //QMessageBox::information(this,"", ClientMol);
 
    emit selectedName(ClientName);
    emit selectedCity(ClientCity);
    emit selectedAddress(ClientAddress);
    emit selectedMol(ClientMol);
    emit selectedEik(ClientEik);
    emit selectedVat(ClientVat);
    //emit selectedRaw(QString::number(ClientId));
 
    this->close();
 
 
}

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Then ask the view for the proxymodel
ui->tableView_clients->model(); //this will return the proxy model that you set in your view

Thank you for the answer, but is seems that ui->tableView_clients->model() doesn't return the proxyModel because there is no function mapToSource()

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Added after 24 minutes:

I just have write this

Code:

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mod->setSourceModel(ui->tableView_clients->model());

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and it works, i just have to change the indexes of the cells.

THANK YOU VERY MUCH FOR YOUR HELP!!!

mod->setSourceModel(ui->tableView_clients->model()); this is not the right way to do it

ui->tableView_clients->model() returns a QAbstractModel you have to cast it into a QProxyModel like this:

Code:

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QProxyModel * tmpProxy;
if(tmpProxy = qobject_cast<QProxyModel *>(ui->tableView_clients->model()))
{
// here you can use the tmpProxy to mapToSource
}

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