In VB6, I used control arrays to have a common handler handle events from several controls. How can I do this in Windows Forms
You can specify events from different controls be handled by a single method. When you define your handler, you can list several events that are to be handled by listing them in the Handles argument. This statement handles three different textbox’s TextChanged event.
In the TextsChanged handler, you may need to identify the particular control that fired the event. This sender parameter holds the control. You can use it with code such as: