adobe flex extreme components -

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in project, using adobe flex extreme components show grids. see grid below in jsp( filters)

    <ec:table items="searchresults"     var="searchresults"      imagepath="${pagecontext.request.contextpath}/static/images/table/*.gif"     view="buttonsonbottom"     retrieverowscallback="limit"     filterrowscallback="limit"     sortrowscallback="limit"     ...    >  ..

what function of these three: retrieverowscallback,filterrowscallback,sortrowscallback.
want this:
when grid loads, show prefiltered list(e.g. records status = 'active'). server side can return filtered list, on grid , filter value shown 'blank' instead of 'active'.

thank you.

"adobe flex extreme components" doesn't exist, or says google. 3rd party library , not standard flex component. should 3rd party documentation see do.


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