Extensions

DotNetExtensions.cs

public static IEnumerable<PropertyInfo> GetPropertiesWithAttributes<T, TAttr>(this object obj)
{
    return GetPropertiesWithAttributes(obj, typeof(T), typeof(TAttr));
}

public static IEnumerable<PropertyInfo> GetPropertiesWithAttributes(this object obj, Type type, Type attrType)
{
    return type.GetProperties()
                    .Where(x => x.GetCustomAttributes(true)
                           .Any(attr => attr.GetType() == attrType)
                          );
}