Q4. What are containers or container controls?
Ans. A container is a control that can hold other controls within it e.g., a Panel ( there can be multiple controls inside a Panel) or a Label (it can hold a picture and text both) or simply Frame (we can put so many controls on it). Controls inside a container are known as child controls. The child controls can exist completely inside their containers. That means we can’t move them outside their container and if we are try to drag them beyond the boundary of their containers, part of the control gets hidden.
When we delete a container control, all its child controls automatically get deleted.