qresults-list🔗ℹ

This package provides the qresults-list% class which improves the build-in Racket list-box% control:

• data-oriented interface for adding data to the list-box% control

• efficient changing of large amounts of data in the control

• columns can be sorted by clicking on the headers

• columns are initially sized to fill the entire available client area in the control

• remembers the column layout: columns can be resized and re-ordered by the user and the layout can be saved to a preferences file and restored from there

• the user can select at runtime which columns should be visible, and the column visibility is independent from the data that is provided to the control (i.e the application can provide data for many possible columns and the user can choose which ones to be visible in the control)

This control is used in the ActivityLog2 application, see that application for usage examples.