Multiple choice technology programming languages

After capturing the SelectedIndexChanged event for a ListBox control, you find that the event handler doesn’t execute. What could the problem be ?

  1. The AutoEventWireup attribute is set to False

  2. The AutomaticPostBack attribute is set to False

  3. The codebehind module is not properly compiled

  4. The ListBox must be defined WithEvents

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

SelectedIndexChanged event execution depends on AutoPostBack being True for ListBox controls. AutoEventWireup affects event-wireup behavior, not postback execution, and other options are unrelated to this specific issue.