I need a widget to enter one or more email recipients in valid form (rfc5322)
A baseline design would be a regular TextCtrl. Validation can be done either at each key stroke and/or on ENTER key press/lose focus etc. This is straightforward to write in a few minutes and suffices for my needs.
But I am considering turning it into a small project for the holidays and writing a richer widget that comes closer to the behavior of, say, entering a recipient in gmail, offering selection/autocompletion, possibility of deleting whole emails, editing, etc.
My widget would not have to be specific to emails. More generically I am interested in the ability to select/autocomplete from a preexisting set of multiple text labels, as well as possibly edit the text of each label already added, remove a label already added or type new ones.
I note that a
ComboBox permits a single selection only, a
ListCtrl does not permit adding new items, and an
EditableListBox does not allow selection so none of these controls by itself would suffice.
This is a design/brainstorming question, rather than an implementation details question. I would enjoying hearing thoughts or pointers to existing solutions before deciding whether I want to do this. If I end up writing a non-trivial widget I will be happy to open source it.