Changing the Characteristics of Objects

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Almost everything you work with in C# is an object. Forms, for instance, are objects, as are all the items you can put on a form to build an interface, such as list boxes and buttons . There are many types of objects ( Hour 3, "Understanding Objects and Collections," discusses objects in detail). Objects, in turn , are classified by type. For instance, a form is a Form object, whereas items you can place on a form are called Control objects, or controls. Some objects don't have a physical appearance, but exist only in code. You'll learn about these kinds of objects in later hours.

Every object, regardless of whether it has a physical appearance, has a distinct set of attributes known as properties. You have certain properties about you, such as your height and hair color , and C# objects have properties as well, such as Height and BackColor. Properties define the characteristics of an object. When you create a new object, the first thing you need to do is set its properties so that the object appears and behaves in the way you desire . To display the properties of an object, click the object in its designer. Click the form now to ensure that its properties are displayed in the Properties window.

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