Filter Columns in a QFileSystemModel

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How to Filter Columns in a QFileSystemModel

Sometimes one does not want to display all the columns of a QFileSystemModel [doc.qt.nokia.com], like discussed in this forum thread [developer.qt.nokia.com].

This can be achieved in two ways, either by hiding the columns in the view, by using a specialized proxy model. The easiest way is to hide the columns using the QHeaderView, but the alternative to subclass QSortFilterProxyModel [doc.qt.nokia.com] and reimplement the filterAcceptsColumn() method also works well.

Column hiding using QHeaderView

All multi-column views provide access to a QHeaderView [doc.qt.nokia.com] . This is the widget that provides the headers above the columns of data, and allows the user to resize those columns, or click the headers to trigger a sorting order. You can also use this widget to hide columns in your view.

The alternative method of using a custom proxy model is outlined below.

Column hiding using QSortFilterProxyModel

Be aware that the column count is 0-based and that it is hard coded.

fsmproxy.h

fsmproxy.cpp

Usage

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