Final answer:
The event raised when an item is selected from a combo box's drop-down list is 'SelectedIndexChanged'. It allows developers to execute actions in response to the new selection and is distinct from 'SelectedItem' or 'TextChanged' events.
Step-by-step explanation:
The event that is raised when the user selects an item from the drop-down list of a combo box is SelectedIndexChanged.
This event is commonly used in programming languages such as C# when developing Windows Forms applications. When the user changes the selection in the combo box, the SelectedIndexChanged event is triggered, allowing the developer to perform actions based on the new selection made by the user. For example, the developer might want to update other controls on the form based on the newly selected item in the combo box.
It's important to differentiate this event from other similar events such as SelectedItem and TextChanged, which have