protected override void AddBusinessRules()
{
base.AddBusinessRules();
this.BusinessRules.AddRule(new StringRequired(NameProperty));
this.BusinessRules.AddRule(new MaxLength(NameProperty, 30));
this.BusinessRules.AddRule(new StringRequired(DescriptionProperty));
this.BusinessRules.AddRule(new MaxLength(DescriptionProperty, 100));
}