This document discusses the CheckBox control in ASP.NET. The CheckBox control allows users to select multiple options from available choices, such as selecting graduate, post-graduate, and doctorate degrees that a person has completed. Important properties of the CheckBox control include Checked, which indicates if the checkbox is checked; Text, which sets the text associated with the checkbox; and TextAlign, which determines if the text appears on the left or right side of the checkbox. The AutoPostBack property controls whether the form automatically posts back to the server when the checkbox selection changes. The Focus() method sets input focus to a specific checkbox.