While define the format against the loaded culture, error class will be added to the input element if we select the date after 12.
1. Craete the sample with below code <EjsDatePicker Format="dd/MM/yyyy" Value=@(DateTime.Now) FloatLabelType="FloatLabelType.Always"></EjsDatePicker> 2. Load the de culture. 3. Run the sample and select the date after 12. 4. See the error class will be added to the input element.