how to disbale a column in a QTableView

I have looked through the post in an effort to try to find a solution, but nothing gave me what I was lkooking for. I have a QTableView with a QSqlTable as its model. I want to disable columns for entry in the view and cannot find a solution with regard QTableView, only QTableWidget. Can someone provide a small sample code of how to do this. Thank you in advance.

If all the columns should be read-only only in this view, but not in other views of the same model) then try setting QAbstractItemView::NoEditTriggers with QAbstractItemView::setEditTriggers().

If some of the columns or cells in the model should be read-only in all views on the model then override QAbstractItemModel::flags() and remove the Qt::ItemIsEditable flag on relevant columns/rows/cells.

You could also write a proxy model that removes the relevant edit flags and use it for this this view only.

If some of the columns in the views should be read-only in this view, but read-write elsewhere, then you should look at setting a delegate on the column. If the delegate has a do-nothing (return 0) implementation of QAbstractItemDelegate::createEditor() then it will probably disable editing (I have not tested this).

Fairly new at qt. How would I incoporate this. Here is my code below. I only want the column titled "This Shipment" in my view to be editable.

// build temp table
updateStr = QString("insert into tt_manifest(company, so_number, manifest_number, upc, description, order_qty, total_shipped, qty_shipped, back_order_qty, rowid) select m.company, m.so_number, m.manifest_number, i.upc, i.description, CASE WHEN h.type = 'C' THEN 0 ELSE s.order_qty - s.total_shipped END, s.total_shipped, m.quantity, m.back_order_quantity, m.rowid from so_manifest m join so_details s on s.comp = m.company and s.so_number = m.so_number and s.line = m.so_detail_line join in_master i on i.comp = s.comp and i.part_number = s.part_number join so_header h on h.comp = m.company and h.so_number = m.so_number where m.company = %1 and m.so_number = %2 and m.manifest_number = %3").arg(ui->compLineEdit->text()).arg(ui->orderNumberLineEdit->text()).arg(maxManifestNumber);
query.prepare(updateStr);
query.exec(updateStr);

model = new QSqlTableModel(this);
model->setTable("tt_manifest");
model->setHeaderData(upc, Qt::Horizontal, QObject::tr("Item"));
model->setHeaderData(description, Qt::Horizontal, QObject::tr("Description"));
model->setHeaderData(order_qty, Qt::Horizontal, QObject::tr("Order Qty"));
model->setHeaderData(total_shipped, Qt::Horizontal, QObject::tr("Shipped to Date"));
model->setHeaderData(qty_shipped, Qt::Horizontal, QObject::tr("This Shipment"));
model->setHeaderData(back_order_qty, Qt::Horizontal, QObject::tr("Back Order Qty"));
model->setHeaderData(rowid, Qt::Horizontal, QObject::tr("RowId"));
model->select();

ui->tableView->close();
ui->tableView->setModel(model);
ui->tableView->setColumnHidden(company,true);
ui->tableView->setColumnHidden(sonumber,true);
// ui->tableView->setColumnHidden(so_number,true);
ui->tableView->setColumnHidden(manifest_number,true);
ui->tableView->setColumnHidden(rowid,true);

ui->tableView->resizeColumnsToContents();
ui->tableView->verticalHeader()->hide();

ui->tableView->show();

You should use [code] tags around your code.

Which option do you want to apply? Something like this will disable editing of all but the one column in all views on the model:

Code:

---

class ManifestModel: public QSqlTableModel
{
public: 
    ManifestModel(QObject * parent = 0, QSqlDatabase db = QSqlDatabase() ):
        QSqlTableModel(parent, db)
    { }
 
    ~ManifestModel() { }
 
    Qt::ItemFlags flags ( const QModelIndex & index ) const 
    {
        if (index.column() == 2)
            return Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsEditable;
        else
            return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
    }
};

---

Then use ManifestModel in place of QSqlTableModel.

This worked perfectly. Thank you so much.

Hi, I am also facing the same problem. This solution worked perfectly for QTableWidgetItem, but I have also added QWidget instead of using QTableWidgetItem for some of the rows in the column. This solution is not disabling the QWidget.
Am I missing something. ??

Quote:

---

Hi, I am also facing the same problem. This solution worked perfectly for QTableWidgetItem, but I have also added QWidget instead of using QTableWidgetItem for some of the rows in the column. This solution is not disabling the QWidget.
Am I missing something. ??

---

If I'm not mistaken, you are using QTableWidget, not QTableView.

Quote:

---

Originally Posted by ChrisW67

You should use [code] tags around your code.

Which option do you want to apply? Something like this will disable editing of all but the one column in all views on the model:

Code:

---

class ManifestModel: public QSqlTableModel
{
public: 
    ManifestModel(QObject * parent = 0, QSqlDatabase db = QSqlDatabase() ):
        QSqlTableModel(parent, db)
    { }
 
    ~ManifestModel() { }
 
    Qt::ItemFlags flags ( const QModelIndex & index ) const 
    {
        if (index.column() == 2)
            return Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsEditable;
        else
            return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
    }
};

---

Then use ManifestModel in place of QSqlTableModel.

---

I am searching for some way to disable 3 columns contents in a tableview and has found your code.
As I am new to QT programming, I wish to ask if it's possible to tell how to use this code? Where I need to implement it? In what file?

I really thank you for any help because I haven't found a solution yet.

Thanks

Quote:

---

I wish to ask if it's possible to tell how to use this code?

---

If you look again at the code, you will see that in this case the poster has derived a custom model class (ManifestModel) from the Qt class QSqlTableModel and has implemented the enable / disable code by overriding the flags() method.

All Qt model classes are derived from the QAbstractItemModel base class, which defines a number of pure virtual methods which must be implemented in any class derived from this base class. In particular, most custom models will implement rowCOunt(), columnCount(), data(), flags() and possibly a few other methods to define the behavior of their model.

If you don't understand this description, I would strongly suggest that you read the documentation on Qt Model / View architecture (google it) and study the many examples that come with the Qt distribution that deal with model / view programming, editable and non-editable models, customizing view appearance, etc.