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QtitanDataGrid ignores model headerDataChanged

7 years 5 months ago #1 by Josh Quigley
When the model raises 'headerDataChanged' signal, this is ignored by the QtitanDataGrid. Inspecting the dumpObject() output (shown below) it appears the view never connects to the signal.

Is there are way to trigger the view to update it's column headers?
OBJECT GenericParametersTableModel::unnamed

  SIGNALS OUT
        signal: destroyed(QObject*)
          --> Qtitan::GridModelController::unnamed modelDestroyed()
        signal: destroyed()
        signal: objectNameChanged(QString)
        signal: dataChanged(QModelIndex,QModelIndex,QVector<int>)
          --> Qtitan::GridModelController::unnamed modelDataChanged(QModelIndex,
QModelIndex)
        signal: dataChanged(QModelIndex,QModelIndex)
        signal: headerDataChanged(Qt::Orientation,int,int)      <---- No one is listening. 
        signal: layoutChanged(QList<QPersistentModelIndex>,QAbstractItemModel::L
ayoutChangeHint)

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7 years 4 months ago #2 by Developer Machines
In current implementation these signals are not handled. They will be added to the next major grid update - v 4.0.

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1 month 2 weeks ago #3 by ssss
I have the same Problem in Grid7.1, "headerDataChanged" donot work,and I cannot change head of tableview dynamicly

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1 month 1 week ago #4 by Developer Machines
Implementation of this feature has been deferred as not a priority. We'll try to add it in the next update. Next update will be released next week.

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3 weeks 1 day ago #5 by ssss
I have tried the recent update , with QtitanDataGrid 7.3.0 I can change content of the table header. But What I need is a dynamic change, the size of my header is not fixed; for example , I change the table from 5 columns to 6 columns, I failed again;

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3 weeks 1 day ago - 3 weeks 1 day ago #6 by Developer Machines
headerDataChanged() is used to notify about the text changing only.
To change the count of column you have to raise event QAbstractItemModel ::columnsInserted(const QModelIndex&, int, int). Also you can try to rebuild the layout completery with QAbstractItemModel::modelAboutToBeReset(), QAbstractItemModel::modelReset() events.
Last edit: 3 weeks 1 day ago by Developer Machines.

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