By clicking the check boxes displayed within a card. To display check boxes, set the CardViewCommandLayoutItem.ShowSelectCheckbox property to true. Alternatively, you can use the "Show Select check Box" option within a grid's Smart Tag menu.
ASPxCardView supports single and multiple card selection modes. You can switch the mode using a single option. To learn more, refer to the Multiple Card Selection topic.
To get the ASPxCardView's selection, use the ASPxCardView.Selection property. The object returned by this property provides methods that allow you to select and deselect individual cards or all cards, obtain the number of selected cards, etc.
ASPxCardView provides a comprehensive client-side API that enables you to manage a selection in the same manner as on the server side. All these methods are listed in Member Table: Selections.