Radio Button and Check Box

This two controls will be used when we want to provide the user with the list of values to choose from.The difference between these two controls is, radio button control is used when only a single value has to be selected from the list whereas check box is used when we want to provide multiple values to choose from list.

As a radio button supports single selection only once we select the second radio button automatically the first one gets deselected. But if we have requirement of using radio button under different places or option we need to group radio buttons by placing them on a separate container like panel, groupbox etc so that one radio button can be selected from each group.

Checked is a property provided by radio buttons and check box control to identify which control has been selected its a Boolean property that returns true if the control is not selected.