CheckBox Server Control
The Check boxes on a web form allow you to make selections from a collection of items or to specify a value of an item to be yes/no, on/off, or true/false.
The CheckBox control allows you to place single check box or collection of check boxes on the form. You can use multiple CheckBox controls on your ASP.NET pages, but each check box is treated as its own element with its own associated events. You can also Select Multiple CheckBoxes at a Time.