Chapter 4.10, Problem 4.15CP

Program Plan Intro

• The “CheckBox” control is used to set true/false or yes/no options.
• The user can select or deselect the Checkbox. If the user selects the Checkbox, it will return true. When the checkbox is clear, it returns a value false.
• The check box has 3 states. Which are, “checked”, “unchecked” and “intermediate”. In the intermediate state, the checkbox will have gray colour.
• The checkbox has several properties like, Appearance, “AutoCheck”, “CheckAlign”, “Checked”, “CheckState”, “Text”, “ThreeState”. Each property has its own purpose.
• The property “Checked” is used to get or set a value indicating whether the control has been checked or not.
• The checkbox has three methods which are, “OnCheckedChanged”, “OnCheckStateChanged”, and “OnClick”.