For all the Devex Components, you can use ControlStyle > CssClass property to apply your custom CSS class (Example 1 and 2) or you can do it with parameter (if it is allowed – as in Example 3). Here is 3 examples for MVC: @Html.DevExpress().SpinEditFor(m => m.Books.Rating, settings => { settings.Properties.SpinButtons.ShowIncrementButtons = true; settings.Properties.Increment = […]