C#的Lazy Loading问题

C#的Lazy Loading问题2014-10-12In some Senario, may only need to init the object when using ,so lazyLoading will be a good choice.

Sample Class:

public class Product{public Product（）{//do many things here ,will take long timeThread.Sleep（1000）;}public int Id { get; set; }public string Name { get; set; }public string TypeCode { get; set; }}

Sample class test lazy loading:

public class LazyLoadingTest{public Product GetProduct（int id, string name, string typecode）{return new Product（）{Id = id,Name = name,TypeCode = typecode};}public Lazy<Product> GetLazyProduct（int id, string name, string typecode）{return new Lazy<Product>（（） => new Product（） {Id = id, Name = name, TypeCode = typecode}）;}}

Test code:

var llt = new LazyLoadingTest（）;var p1 = llt.GetProduct（1, "tablet", "x101"）;//As Product is not lazy loading obj , so here constructure will be created.var p2 = llt.GetLazyProduct（2, "computer", "y202"）;var productName1 = p1.Name;var productName2 = p2.Value.Name;// As P2 is a lazy product object , only when P2 object is using , there is a construction here .

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