Occurs when a setting of the current MaskProperties object is about to be changed.
[Browsable(false)] public event ChangeEventHandler BeforeChange
<Browsable(False)> Public Event BeforeChange As ChangeEventHandler
The BeforeChange event's data class is DevExpress.XtraEditors.Controls.ChangeEventArgs.
The name of the setting that will be changed is passed as the event's parameter.
After a setting has been changed the MaskProperties.AfterChange event is fired.