LINQ使用Lambda表达式选择几列

namespace Insus.NET.Models
{
    public class ProdImage
    {
        public int ProductID { get; set; }
        public int Type { get; set; }
        public int Priority { get; set; }
        public string Url { get; set; }
        public string Alt { get; set; }
        public string Creator { get; set; }
        public DateTime CreateOn { get; set; }
    }
}

namespace Insus.NET.Entities
{
  public  class ProdImageEntity
    {
        public IEnumerable<ProdImage> GetProdImage = new List<ProdImage>
        {
            new ProdImage { ProductID = 1,Type=12, Priority=45,
                Url = "http://insus.cnblogs.com", Alt="Insus blogs",
                Creator ="Insus.NET", CreateOn=Convert.ToDateTime("2016-04-13")},

            new ProdImage { ProductID = 2,Type=18, Priority=38,
                Url = "http://www.cnblogs.com/insus", Alt="Insus blogs",
                Creator ="Insus.NET", CreateOn=Convert.ToDateTime("2016-04-18")}
        };
    }
}