Get Status(Checked /UnChecked ) of the current Checkbox In CheckBoxList on the SelectedIndexChangeProperty()

Hi,

For CheckBoxList, i'm having a problem handling SelectedIndexChanged event. When i handle SelectedIndexChanged event, i can't reference the checkbox that was clicked ( checked or Unchecked Status ) , as the "SelectedIndex" only references the first checked checkbox. I want this, since I have to do something like :

Collapse If ( Current checkbox Status = Checked )
{
do something
}
elseif(Current checkbox Status = UnChecked )
{
do something
}
Is there a way to find, (1) SelectedValue / SelectedIndex of Current CheckBox(ticked/unticked) in Chec ...