tableview , model and owncolumn

[maston]

Hi.

I have something like this :

QSqlQueryModel *model = new QSqlQueryModel(this);
        model->setQuery("SELECT name,surname FROM students WHERE class= "+id);
        model->setHeaderData(0, Qt::Horizontal, QObject::tr("Name"));
        model->setHeaderData(1, Qt::Horizontal, QObject::tr("Surname"));
        model->insertColumn(2);
        model->setHeaderData(2, Qt::Horizontal, QObject::tr("Amount"),Qt::EditRole);

QSqlQueryModel *model = new QSqlQueryModel(this);
        model->setQuery("SELECT name,surname FROM students WHERE class= "+id);
        model->setHeaderData(0, Qt::Horizontal, QObject::tr("Name"));
        model->setHeaderData(1, Qt::Horizontal, QObject::tr("Surname"));
        model->insertColumn(2);
        model->setHeaderData(2, Qt::Horizontal, QObject::tr("Amount"),Qt::EditRole);

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And i want to set third column to editable value. I have to type there text.

How force model to set column(2) with textbox field?

Thanks in advance

[waynew]

The user can't edit the model directly, you have to edit through the view.
Like this, for example:

QModelIndex index = ui->tvMemories->QAbstractItemView::currentIndex();
   ui->tvMemories->edit(index);

QModelIndex index = ui->tvMemories->QAbstractItemView::currentIndex();
   ui->tvMemories->edit(index);

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[maston]

thank You for Your reply

but i have to do something like this:



insert line edit in last cell and next get value to insert to database after click save

[tbscope]

Create a delegate

[maston]

thanks

i have this.

in header :

namespace Ui {
    class DodajWplate;
    class LineEditDelegate;
}
 
 
 
class DodajWplate : public QDialog {
   ...
};
 
 
class LineEditDelegate : public QItemDelegate
{
        Q_OBJECT
 
        public:
             LineEditDelegate(QObject* parent = 0);
 
             QWidget* createEditor(QWidget *parent, const QStyleOptionViewItem& option, const QModelIndex& index) const;
             void setEditorData(QWidget* editor, const QModelIndex& index) const;
};

namespace Ui {
    class DodajWplate;
    class LineEditDelegate;
}



class DodajWplate : public QDialog {
   ...
};


class LineEditDelegate : public QItemDelegate
{
        Q_OBJECT

        public:
             LineEditDelegate(QObject* parent = 0);

             QWidget* createEditor(QWidget *parent, const QStyleOptionViewItem& option, const QModelIndex& index) const;
             void setEditorData(QWidget* editor, const QModelIndex& index) const;
};

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in cpp :

QWidget* LineEditDelegate::createEditor(QWidget* parent, const QStyleOptionViewItem&, const QModelIndex&) const
{
        QLineEdit* lewtv = new QLineEdit(parent);
 
        return lewtv;
}
 
void LineEditDelegate::setEditorData(QWidget* editor, const QModelIndex& index) const
{
        QString value = index.model()->data(index, Qt::EditRole).toString();
 
        QLineEdit* lewtv = static_cast<QLineEdit*>(editor);
 
        lewtv->setText(value);
}

QWidget* LineEditDelegate::createEditor(QWidget* parent, const QStyleOptionViewItem&, const QModelIndex&) const
{
        QLineEdit* lewtv = new QLineEdit(parent);

        return lewtv;
}

void LineEditDelegate::setEditorData(QWidget* editor, const QModelIndex& index) const
{
        QString value = index.model()->data(index, Qt::EditRole).toString();

        QLineEdit* lewtv = static_cast<QLineEdit*>(editor);

        lewtv->setText(value);
}

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and

ui->tableView->setItemDelegateForColumn(2, new LineEditDelegate);

ui->tableView->setItemDelegateForColumn(2, new LineEditDelegate);

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When i want to build i have error :

undefined reference to `LineEditDelegate::LineEditDelegate(QObject*)'

[tbscope]

Do you have

LineEditDelegate::LineEditDelegate(QObject *parent) :
    QItemDelegate(parent)
{
}

LineEditDelegate::LineEditDelegate(QObject *parent) :
    QItemDelegate(parent)
{
}

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in your cpp file?

[maston]

thanks.
program runs. but tableview in column(2) doesn't have lineedit widget i have to change something? Maybe something is missing