By default, the ItemPadding property is 4. The ItemPadding property retrieves or sets the item's default padding. By default, the height of the item is based on the height of the control's Font, so the height for all items are automatically updated once the user changes the control's font. The item's height is automatically computed if the SingleLine property is False. The Def(exCellSingleLine) / SingleLine property specifies whether the cell's caption is displayed by single or multiple lines. The HeaderVisible property specifies whether the control shows it's header bar. The HeaderHeight property retrieves or sets a value indicating the control's header height. The Margins / RelativeMargins specifies the size of the margins that the face's content is displayed relative to its face.