I Have the below model where Depending upon the selected role I need to have the required validation for other fields.

Like If User selects 'Division' I need to make 'SelectedDivision' property required.

How can I acheive this model validation?

public class CreateUserVm
    {
        [Required]
        public string SelectedRole { get; set; }

        public string[ ] SelectedDivision { get; set; }
        public string[ ] SelectedRegion { get; set; }
        public string[ ] SelectedFacility { get; set; }
    }

Thanks,