ConfigurationPropertyAttribute from nexuspwn

ConfigurationPropertyAttribute.cs

[AttributeUsage(AttributeTargets.Property, AllowMultiple = false)]
public class ConfigurationPropertyAttribute : Attribute, IComparable<ConfigurationPropertyAttribute>
{
   public ConfigurationPropertyAttribute(string displayName)
   {
      DisplayName = displayName;
   }

   public string DisplayName { get; set; }

   public int Order { get; set; }

   public int CompareTo(ConfigurationPropertyAttribute other)
   {
      if (other == null)
         return 1;

      return Order.CompareTo(other.Order);
   }
}

HostProviderService.cs

// Example: HostProviderService.GetProperties(typeof(StaticHostProvider))
//    returns the list of ConfigurationProperty classes for "Location", "IPAddress",
//    and "Port" ordered by the Order property on the ConfigurationPropertyAttribute
//    class. I can use that list to generate the administration UI when configuring
//    a StaticHostProvider.
public class HostProviderService : IHostProviderService
{
   public IEnumerable<ConfigurationProperty> GetProperties(Type type)
   {
      return from prop in type.GetProperties()
             let attr = prop.GetCustomAttributes(typeof(ConfigurationPropertyAttribute), false)
                            .SingleOrDefault() as ConfigurationPropertyAttribute
             where attr != null
             orderby attr.Order, attr.DisplayName
             select new ConfigurationProperty()
             {
                PropertyName = prop.Name,
                DisplayName = attr.DisplayName
             };
   }
}

StaticHostProvider.cs

public class StaticHostProvider : IHostProvider
{
   [ConfigurationProperty("IP Address", Order = 1)]
   public string IPAddress { get; set; }

   [ConfigurationProperty("Port", Order = 2)]
   public string Port { get; set; }

   [ConfigurationProperty("Location", Order = 0)]
   public string Location { get; set; }
}