Hide column in QAbstractTableModel

Question

I have a self created Qt-Model derieved by QAbstractTableModel. The data behind the model contains multiple QUuid-columns, whose cell-data I need to pass around the application. Due to design-reasons I don't want to show the QUuid-columns to the user, but keep them in the background to always guarantee access to the needed id-columns.

The data is bound to a Qtitan TableView Grid, where I can hide the column, but not totally remove it from the view. I can always reenable the visability which is not what I want.

So my question is if there are any options from the Qt-Model-side to hide a column or to avoid binding it to the view and just keep the data in the background.

Answer 1

You can subtract those columns from the visible columns by returning the column respectively in columnCount.

This would require to either move them to the end, or map the user visible column count to the underlying columns in your data() implementation.

It is probably a bit simpler to move those invisible columns to the end to avoid the mapping, but you can also do the mapping if you like.

int MyModel::columnCount(const QModelIndex& parent) const
{
  return allColumns - columnsToHide;
}