I want users to be able to tab into a cell of a hyperlink column and edit the url when a row is in edit mode. Since the GridViewDynamicHyperlinkColumn is read-only, I thought I could subclass it to provide an edit textbox. But I can't override CanEdit because you've made it internal. Is there a reason for this? I've worked around it by subclassing GridViewBoundColumnBase and reimplementing stuff from the hyperlink column. If you could remove the internal specifier from CanEdit, it would help avoid unnecessary duplication.