As a child you would wait. And watch from far away. But you always knew that you'd be the one that work while they all play. In youth you'd lay awake at night and scheme. Of all the things that you would change, but it was just a dream! Here we are.
A whitelist is a list or register of entities that provide a particular privilege, service, mobility, access or recognition. Entities on the list will be accepted, approved and/or recognized. Whitelisting is the reverse of blacklisting, the practice of identifying entities that are denied, unrecognised, or ostracised.
A drop-down list is a list in which the selected item is always visible, and the others are visible on demand by clicking a drop-down button. A combo box is a combination of a standard list box or a drop-down list and an editable text box, thus allowing users to enter a value that isn't in the list. An editable drop-down list is a combination of a drop-down list and an editable text box.