This will disable every control on the form. However, the controls in the groupboxes arent actually disabled from this, they are disabled from the groupbox being disabled. Therefore you could use the code above to disable all controls on the form and then just immediately use.
The Selective Service System wants you to know that the requirement to register for the draft did not go away with the end of the Vietnam War. Under the law, virtually all male U.S. citizens, and male aliens living in the U.S., who are ages 18 through 25, are required to register with Selective Service.
It required all men between the ages of 18 to 64 to register with Selective Service. It originally conscripted all men aged 21 to 35 for a service period of 12 months. In 1941 the military service period was extended to 18 months; later that year the age bracket was increased to include men aged 18 to 37.