Custom Model and Proxy Model

[frank100]

Hello, I have a custom model and a custom proxy model for it.

I have noticed that I the removeColumns virtual function does not propagate to my model

bool CustomProxy::removeColumns (int column, int count, const QModelIndex & parent)
{
    // source model is a custom model derived from QAbstractTable
    return sourceModel()->removeColumns(column, count, parent);
}

bool CustomProxy::removeColumns (int column, int count, const QModelIndex & parent)
{
    // source model is a custom model derived from QAbstractTable
    return sourceModel()->removeColumns(column, count, parent);
}

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is this normal?
I would expect the proxy to propagate the removeColumns(...) to its source model by default