Qtableview-How to make noneditable column?

n-2204

Qtableview-How to make noneditable column( i have 3 qtableview in all table i need to make 2 or 3 column as non editable

noneditable is class extracting Qstandarditemmodel

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

{
//table 1
if (index.column() == 0 || index.column() == 1)
    return  QStandardItemModel::flags(index) & ~Qt::ItemIsEditable;
else
    return  QStandardItemModel::flags(index) | Qt::ItemIsEditable;
}

But still its not working for me
and where i should specify which model because i have 3 model 3Qtableview

SGaist

Hi,

There's no need to create a custom mode for that. You can simply set the flags on the items when you create them.

JonB

@SGaist said in Qtableview-How to make noneditable column?:

Hi,
There's no need to create a custom mode for that. You can simply set the flags on the items when you create them.

@n-2204
I said to you at https://forum.qt.io/topic/101447/qtableview-qstandarditemmodel-and-underlying-data-in-a-qlist/12

You can use @VRonin's setFlags() if you want to set the editability on desired, explicitly specified items.

If you want to do it your way by overriding flags(), your code should have read:
...
You will have to derive from QStandardItemModel() if you are wanting to override its flags() method. Similar if you choose to use QAbstractItemModel() instead.

You showed you already had a derived model class with a flags() method. You can do it either way.

n-2204

Qt::ItemFlags GAS_tool::flags(const QModelIndex& index) const
{
//table 1

if (index.column() == 0) //clumn 1 should not be editable
    return flags(index) & ~Qt::ItemIsEditable;
else
    return  flags(index) | Qt::ItemIsEditable;

}
this is Not working

SGaist

You have to call the base class implementation.

n-2204

@SGaist Qt::ItemFlags GAS_tool::flags(const QModelIndex& index) const
{
//table 1
// QStandardItemModel* model;
QAbstractItemModel* table1 = ui.tableView->model();
int iRows = table1->rowCount();
int iCols = table1->columnCount();
QModelIndex index = ui.tableView;
if (index.column() == 0)//clumn 1 should not be editable
return flags(index) & ~Qt::ItemIsEditable;
else
return flags(index) | Qt::ItemIsEditable;

} like this ?

eyllanesc

@n-2204 A solution that does not require override any method of the model is to use a delegate:

class ReadOnlyDelegate: public QStyledItemDelegate{
public:
    using QStyledItemDelegate::QStyledItemDelegate;
    QWidget *QStyledItemDelegate::createEditor(QWidget *, const QStyleOptionViewItem &, const QModelIndex &) const override {
        return nullptr;
    }
};

tableView->setItemDelegateForColumn(0, new ReadOnlyDelegate);
tableView->setItemDelegateForColumn(1, new ReadOnlyDelegate);

n-2204

@eyllanesc Actually for column 1 and 2 i am using intdelegate so is it possible to add one more delegate to same column?

Christian Ehrlicher

@n-2204 said in Qtableview-How to make noneditable column?:

so is it possible to add one more delegate to same column?

No but you can modify your delegate and add the functionality @eyllanesc showed you.

n-2204

@Christian-Ehrlicher thanks
understood