onDynXLS event not hadnled by function

I have used onDynXLS event handler but the event is not handle by function. is there any file missing or version of file is anather than i’m using.

Thanks

Event supported in dhtmlxgrid 2.0+, it doesn’t exist in older versions.
The event occurs when
- branch loaded ( for treegrid only, grid.kidsXmlFile need to be defined_
- additional data loaded in srnd|paging mode ( grid.load need to be called previously, or grid.xmlFileUrl set manually )