Select List Provider Attribute

Select_list_provider_attribute.cs

[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
public class SelectListProviderAttribute : Attribute
{
    public ISelectListProvider Provider { get; private set; }

    public SelectListProviderAttribute(Type providerType)
    {
        if (typeof(ISelectListProvider).IsAssignableFrom(providerType))
        {
            Provider = (ISelectListProvider) ObjectFactory.GetInstance(providerType);
        }
        else
        {
            throw new ArgumentException("Provider type must be of type ISelectListProvider", "providerType");
        }
    }
}