About QAbstractProxyModel::sort(...) method

[zgulser]

Hi,

As you know there is method in both QAbstractProxyModel & QAbstractItemModel classes. What I want to know is - what is the first parameter of the sort method. For example;

myFilterModel->sort(0, Qt::AscendingOrder);

myFilterModel->sort(0, Qt::AscendingOrder);

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0 refers to column here but according to what? I mean I have custom objects in my data model with various members/fields. How '0' in the sort method associated with my highlighted custom object's field?