There are some simple ones, some complex ones, but I cannot find the gold standard. Can anyone point me to "the best" way to let a user define a search criteria (or filter) to retrieve results?
This is complicated since: * Need to support about 10 different types of elements * Support And, Or, Not * Parenthesis (a killer to 95% of the population)
As an example I looked at MorningStar premium fund filter, it is ok but not web2.0 (ajax, JQuery.. in other words, not cool) and it handles parenthesis poorly.