cocoa - NSTokenField Suggest but don't complete -

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i feel must common issue i'm struggling figure out, couldn't find else asked question so... have nstokenfield , when user begins typing make soap request , names similar have entered. issue suggestions don't match have typed. example, match email , last names, persons full name appears in suggestion array. since letters don't match, nstokenfield changes has been typed first item in array. there way turn off autocomplete , have suggestion box appear?

    - (nsarray *)tokenfield:(nstokenfield *)tokenfield completionsforsubstring:(nsstring *)substring indexoftoken:(nsinteger)tokenindex indexofselecteditem:(nsinteger *)selectedindex {     *selectedindex = -1;     return nsarray; }

it turns out assigning selectedindex incorrectly if set -1 nothing selected.


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