Visible: Boolean;
The Visible property determines whether a component is displayed at the form runtime.
If the property is set to False, the component becomes invisible. If the Visible property is set to False (True) for the parent container component, all child elements become invisible (visible) together with the container component. This property can be used to place several components that correspond to the different modes of form work, on the same place of container and make visible necessary component at the necessary time.
See also: