iphone - hiding tableview index dynamically -

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in iphone sdk, there way dynamically decide whether or not show index @ side of table view, , sections well? example, show index "a...z" if table has on 50 entries, hide if it's less that. can decided dynamically? using uilocalizedindexedcollation display index. thanks!

uitableview has property called sectionindexminimumdisplayrowcount - number of table rows @ display index list on right edge of table.


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