namespace System.Web.Mvc { using System.Collections.Generic; using System.ComponentModel.DataAnnotations; public class StringLengthAttributeAdapter : DataAnnotationsModelValidator { public StringLengthAttributeAdapter(ModelMetadata metadata, ControllerContext context, StringLengthAttribute attribute) : base(metadata, context, attribute) { } public override IEnumerable GetClientValidationRules() { return new[] { new ModelClientValidationStringLengthRule(ErrorMessage, Attribute.MinimumLength, Attribute.MaximumLength) }; } } }