Filtering Records before Output to Browser

[kashifali2007]

I want to filter/delete some records based on values of some column, i do not want to filter that field on database query level, i want when records populated from the Model, then before sending output to the browser i want to delete some rows if not meet some criteria, I have tried already to unset $row[] in setPreResultCallback method but its removing but meta data about table is not updating.