tableView and disappearing items

[Lizard]

Hello.
I'm using tableView to display database data and I can fix this annoying bug.

I've created a button to refresh data:

void Przychodnia::on_buttonOdswiez_clicked()
{
    QSqlTableModel *model = new QSqlTableModel();
    model->setTable("Pacjent");
    model->setEditStrategy(QSqlTableModel::OnManualSubmit);
    model->select();
    ui->tableView->setModel(model);
}

This is my tableView before fetching data:
http://imgur.com/h6zq8dW

This is my tableView after fetching data:
http://imgur.com/XxU3qS7

This is my tableview after hovering on items:
http://imgur.com/Xn7pK1H

However if I edit data in listView (that also is not showing my items) the results are displayed in table view and they are not disappearing:
http://imgur.com/dYnqwdt

I'm working with SAP 16 database on Virtual Machine win7- 64bit with Qt Creator 3.6 based on Qt 5.5.1.

Best regards!

[SGaist]

Hi and welcome to devnet,

Are you saying the you have your indexes disappearing while hovering them ?

On a side note you have a "memory leak" here, each time your call on_buttonOdswiez_clicked, you replace the current model with another new one and don't delete the original.

[Lizard]

@SGaist
Yes. They are disappearing when i hover oveer them and then I need to press the button.
I don't know what can cause this because my friend is using basicly the same code .

Thank you for memory leak info.

[SGaist]

Are you both using the same OS and Qt version ?

[Lizard]

@SGaist
Yes.
I think the VirtualBox cause the problem since I'm working on it and he is not.

[SGaist]

Did you install the VirtualBox guest tools ?

[Lizard]

@SGaist
Guest Addition tools?
Yes since I had problems with resolution.
Tried running Qt without them and with different settings. Nothing worked.

[SGaist]

What version of VirtualBox is it ?

[Lizard]

@SGaist
5.0.12

[SGaist]

What is the host OS ?

[Lizard]

@SGaist
Windows 8 64-bit .

[Lizard]

@Lizard

Ok so I have done some research and it seems like the problem occur only if there are more then 1 rows in column.
The indexes are working fine when there is only one row in table.

[SGaist]

What do you mean by "more then 1 rows in column" ?

[Lizard]

@SGaist
Its fine to have one row in tableview but when i add more than one the bug appears.

Single row:
http://imgur.com/sDniGmW

Multirow:
http://imgur.com/uIxyxdD

[SGaist]

Do you have any QSqlRelationalDelegate on it ?

[Lizard]

@SGaist
Not really. I'm new to Qt and I'm still learning how things works.

[SGaist]

Your two images show two different tables. Are you sure that both tables contains data ?