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Event fired where it shouldn't!

I am using one main aspx page, in which i am loading different user
controls for different web pages. At one place, when i load a user
control from another user control and come back to the same user
control, and click a Button, for some reason, instead of firing
Button_Click event, the code first fires the selectedindexchange event
of the dropdown box (i have a dropdown on the usercontrol) and then
fires the button_click event. i couldnot understand why the code fires
selectedindex change event, where i haven't changed the index of the
dropdown box. also, i couldn't understand, why it is firing both the
events (selected index change and then button click event).

anyone know the answer? please reply. Thanks.
Nov 17 '05 #1
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