Check documentation for the latest version 6.0 of dhtmlxSuite onDynXLS DHTMLX Docs

onDynXLS

fires before requesting additional data from the server in case of dynamic Smart Rendering or dynamic Paging

void onDynXLS(number start,number count){ ... };

Parameters

startnumberthe position from which data requested
countnumberthe count of rows requested

Available only in PRO Edition

Example

grid.attachEvent("onDynXLS", function(start,count){
    //your code here
});

Details

the event is blockable

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