Multiple Card Selection
ASPxCardView has a specific selection mode that allows end users to select a single card or multiple cards. To switch to another mode, use the ASPxCardViewBehaviorSettings.AllowSelectSingleCardOnly property.
If the ASPxCardViewBehaviorSettings.AllowSelectByCardClick option is enabled, end users can click cards while pressing the SHIFT or CTRL key to change the selection. In multiple card selection mode, if a user clicks a card while holding down the CTRL key, the card's selected state is toggled. To select a sequence of cards, click the first and last card while holding down the SHIFT key. To select multiple individual cards, click the desired cards with the CTRL key pressed.