By default, the ItemsAllowSizing property is exNoSizing. Use the ItemsAllowSizing property to specify whether all items are resizable. Use the ItemAllowSizing property of the Items object to specify only when few items are resizable or not. Use the ItemHeight property to specify the height of the item. The CellSingleLine property specifies whether a cell displays its caption using multiple lines. The DefaultItemHeight property specifies the default height of the items, before loading data to your control . The DefaultItemHeight property affects only items that are going to be added. It doesn't affect items already added. In CardView mode, uses the ViewModeOption(exCardViewVResizeLine) or  ViewModeOption(exCardViewHResizeLine) property to show or hide the resizing lines. Also, the ItemsAllowSizing property allows resizing the cards at run-time.