What characteristic do all controls share in terms of properties?

All controls share a standard set of properties, which is a fundamental characteristic that allows for consistency and predictability when working with different types of controls within a given environment, such as a user interface. This set of properties often includes attributes like size, position, visibility, and enabled status, among others. This uniformity enables developers to effectively manage various controls, apply common functionality, and create a seamless user experience.

Having a standard set of properties allows developers to use tools and frameworks more efficiently, as they do not need to worry about varying property names or structures for different controls. Instead, they can leverage the commonalities to apply styles, behaviors, and events uniformly across various controls, which simplifies development and maintenance.

In contrast, other options present characteristics that may not apply universally to all controls. Controls can accept various data types beyond just strings, not all controls handle image displays, and not every control is necessary for form submission. Thus, the answer refers specifically to the shared characteristics of controls that enable developers to standardize their interactions and functionalities.