CheckBox
CheckBox, shown in Figure 9.11, is a familiar control. But wait a minute...aren’t we in the middle of talking about buttons? Yes, but consider the characteristics of a CheckBox:
→ It has a single piece of externally supplied content (so the standard check box doesn’t count).
→ It has a notion of being clicked by pointer or keyboard.
→ It retains a state of being checked or unchecked when clicked.
→ It supports a three-state mode, where the state toggles from checked to indeterminate to unchecked.
FIGURE 9.11 The CheckBox control, with all three IsChecked states shown
Does this sound familiar? It should, because a CheckBox is nothing ...
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