Control the Behavior

The DateBox widget allows an end user to pick or type a value. To specify whether the value should be applied instantly or when a user clicks the Done button, set the applyValueMode option. Note that this option takes effect only when the pickerType is "calendar" or "list".

JavaScript
$(function() {
    $("#dateBoxContainer").dxDateBox({
        value: new Date(),
        type: "date",
        pickerType: "calendar",
        applyValueMode: "useButtons" // or "instantly"
    });
});
See Also