DropDownList refreshing

[Lucas Hernandez]

Hi... I have a DDL that is binding data when an action happen in a master
page...
Then, when onIndexChange I bind a gridview inside of a webusercontrol...
on webusercontrol, gridview_rowSelect I bind another webusercontrol but,
for some reason... the dropdownlist is reloaded and by that happening then
everything on the bottom is rebound..
I don't undestand what is resetting dropdownlist to index 0
Question... how can I find the event that is resetting the DDL to index 0?
I am using postback...

thanks

LH