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  4. QSortFilterProxyModel got index out of range error when setting header data
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QSortFilterProxyModel got index out of range error when setting header data

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  • J Offline
    J Offline
    justDance
    wrote on last edited by
    #1

    I call setSourceModel() at widget constructor, at this point header data in source model as a QStringList is empty. Later when I call setHeaderData() to set header data based on the info I got from network, I get error message saying that QVector index out of range. it's from QSortFilterProxyModelPrivate::_q_sourceHeaderDataChanged().
    Anybody knows why? All qt examples online doesn't cover this case.

    Thanks,

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    • J Offline
      J Offline
      justDance
      wrote on last edited by
      #2

      more info about my problem: in my setHeaderData() function, I have "emit headerDataChanged(Qt::Horizontal, section, section);", this signal triggered slot QSortFilterProxyModelPrivate::_q_sourceHeaderDataChanged().

      But based on QAbstractItemModel Class Reference, "When reimplementing function setHeaderData(), the headerDataChanged() signal must be emitted explicitly." so seems there is nothing wrong with my code.

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