Does anyone know of a better custom control of a ComboBoxCheckBox than this one: http://www.codeproject.com/KB/combobox/extending_combobox.aspx? Preferabbly open source, but if not, paid. I've looked around and can't seem to find even a commercial one (then again, I don't know of that many .NET control vendors).
What better? A better .DataSource=, at least scrollbars for lists of checkboxes, etc.
Any insight would be a appreciated.