event occurs before block selection

void onBeforeBlockSelect(cellId start,cellId end,boolean isFinal);
startcellIdthe id of start cell
endcellIdthe id of the end cell
isFinalbooleanis selection still in progress or finalized


$$("dt").attachEvent("onBeforeBlockSelect", function(start, end, isFinal){
    return true;


Return false to block selection

You can modify the start and end object to change the result of blockselection.

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