Sets the style of the List item.
| Value | Description |
|---|---|
| List | By default. Items are placed from top to bottom. |
| TwoColumnsGrid | Items are placed in a table with two columns of equal width. |
| ThreeColumnsGrid | Items are placed in a table with three columns of equal width. |
| Underlined | Items are placed from top to bottom. A horizontal line is displayed after each item. |
| Chat | Items are placed in the form of a chat. The list items in this case will most often be the ChatItem items. |