The Categories property returns or sets the number of categories in this table view. Read/write.
objTableView.Categories
Long
The Categories property indicates how many levels of grouping are present in the table view. If the view is grouped, or categorized, Categories can contain from 1 through 4, the maximum permitted grouping depth. If the view is not categorized, Categories contains 0.
The nesting depth of a particular group within the table view is given by the Level property of the GroupHeader object that heads that group.