Answer / payal

in case of some server controlls like
datagrid,repeter,datalist in that we can add another
another also like suppose in datagrid we can add check box
and in that the check event is not raised by itself or
check box.

check box is in datagrid so that datagrid is parent and
checkbox is child so that check box send check event to
parent that is datagrid .

this pass event from child to parent is called event
bubbled.then parent pass it to page using itemtemplate

<itemtemplate>
<asp:checkbox id=chk1;oncheck="chked">
</itemtemplate>

in that chked is subroutine and oncheck is event so that
chked is always public or protected

public sub chked(by val e as event,by val---)

//code
end sub

event bubbling
pass event-from-child-to-parent

Answer / swapna

When you have a complex control, likeDataGrid, writing an
event processing routine for each object (cell, button,row,
etc.) is quite tediousdifficult.

The controls can bubble up their eventhandlers, allowing
the main DataGrid event handler to take care of its
constituents.

Suppose you want a certain ASP.NET function executed on
MouseOver over a certain button.

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