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I have a data entry page where the user is required so make some selections from a list. Currently it is just a check list with about 10 items they can tick, but is will expand soon to about 230. What is a good UI paradigm for dealing with a large number of selectable items? I am considering dual list type control.
Dual list, BUT, for a large # of non-groupable elements:
Also, if the lists are REALLY big (1k+), you may run into trouble with slow rendering.
If so, you can also “paginate” the list – e.g. display only first N elements, allow selection from those, and then ability to shift the “frame” to next N elements.
(all the above, BTW, are real attributes of a solution we implemented in an enterprise web app needing a selection list with 30k possible values which could not be grouped).