When you change the focus by using the keyboard (TAB, SHIFT+TAB, and so on), by calling the Control.Select or Control.SelectNextControl(Control, bool, bool, bool, bool) methods, or by setting the ContainerControl.ActiveControl property to the current form, focus events occur in the following order:

When you change the focus by using the mouse or by calling the Control.Focus method, focus events occur in the following order:

If the Control.CausesValidation property is set to false, the Control.Validating and Control.Validated events are suppressed.

Note   The Control.GotFocus and Control.LostFocus events are low-level focus events that are tied to the WM_KILLFOCUS and WM_SETFOCUS Windows messages. Typically, the Control.GotFocus and Control.LostFocus events are only used when updating System.Windows.Forms.UICues or when writing custom controls. Instead the Control.Enter and Control.Leave events should be used for all controls except the System.Windows.Forms.Form class, which uses the Form.Activated and Form.Deactivate events. For more information about the Control.GotFocus and Control.LostFocus events, see the WM_SETFOCUS and WM_KILLFOCUS topics in the "Keyboard Input Reference" section in the MSDN library at http://msdn.microsoft.com/library.

For more information about handling events, see Consuming Events.