PropertyInfo From SubClass property

Question

I have two classes:

public class LookUpData 
{
  [Searchable]
  public string ManufactureName {get;set;)
}

public class Car
{
   public int ID {get;set;}
   [Searchable]  
   public string  Model {get;set;}
   public int ManufactureId {get;set;} 
   public LookUpData LookUpData{ get;set;} 

}

With [Searchable] attiribute I'm trying to get properties on which after I can make search in DB.

Currently I have static medthod:

public static List<PropertyInfo> GetSearchPropertiesWithOrderBy(Type type)
{
  if (type == null) throw new ArgumentNullException("type");

  return type.GetProperties()
             .Select(x => new
                            {
                              Property = x,
                              Attribute =
                            (SearchableAttribute) Attribute.GetCustomAttribute(x, typeof (SearchableAttribute), true)
                            })
             .OrderBy(x => x.Attribute != null ? x.Attribute.OrderBy : 200)
             .Select(x => x.Property)
             .ToList();
}

I can get a List of PropertyInfo's

 - Model 
 - LookUpData

How Can I Get List of PropertyInfo's to have "real name" properties:

 - Model   
 - ManufacterName

Thanks in advance.

Answer 1

This will work for all your classes if the hierarchy is one, two ,three, four levels etc too. Only thing missing is OrderBy. I believe that piece can be done by you once the listing is got.

    public static List<PropertyInfo> GetSearchProperties(Type type)
    {
        if (type == null) throw new ArgumentNullException("type");


        List<PropertyInfo> propL = new List<PropertyInfo>();
        foreach (var item in type.GetProperties())
        {
            object[] obj = item.GetCustomAttributes(typeof(Searchable), true);
            if (obj.Count() > 0)
            {
                propL.Add(item);
            }
            else
            {                    
                propL.AddRange(GetSearchPropertiesWithOrderBy(item.PropertyType));
            }
        }
        return propL;        
    }
    [System.AttributeUsage(System.AttributeTargets.Property)]
    public class Searchable : System.Attribute
    {

    }
    public class LookUpData
    {
        [Searchable]
        public string ManufactureName { get; set; }
    }

    public class Car
    {
        public int ID { get; set; }
        [Searchable]
        public string Model { get; set; }
        public int ManufactureId { get; set; }
        public LookUpData LookUpData { get; set; }

    }

With hierarchy it means if your LookUpData property was not declared directly in Car class For example, then too this code will work perfectly fine.

    public class MyDataModels
    {
        LookUpData MysetOfData { get; set; }
        int MyVal { get; set; }
    }

    public  class MyCar
    {
        public int ID { get; set; }
        [Searchable]
        public string Model { get; set; }
        public int ManufactureId { get; set; }
        public MyDataModels MyModel { get; set; }

    }