A Tab is an individual member of a Tabs collection.
Remarks
Visually, a Tab object appears as a rectangle protruding from a larger rectangular area, or as a button adjacent to a rectangular area.
In contrast to a Page, a Tab does not contain any controls. Controls that appear within the region bounded by a TabStrip are contained on the form, as is the TabStrip.
You can reference a Tab by its index value. The index value reflects the ordinal position of the Tab within the collection. The index of the first Tab in a collection is 0; the index of the second Tab is 1; and so on.