C # Serializes an object into a JSON string

2. Public string getjsonstring ()
4. {
6. list<product> products = new list<product> () {
8. New Product () {name="Apple", price=5.5},
10. New Product () {name="orange", price=2.5},
12. New Product () {name="dried persimmon", price=16.00}
14. };
16. ProductList productlist = new ProductList ();
18. ProductList. GetProducts = Products;
20. return new JavaScriptSerializer ().  Serialize (productlist));
22. }
26. Public class Product
28. {
30. public string Name { get;  set;}
32. public Double price { get;  set;}
34. }
38. Public class ProductList
40. {
42. Public list<product> getproducts { get;  set;}
44. }

The main thing here is to use JavaScriptSerializer to implement serialization, so that we can convert the object into a JSON-formatted string, resulting in the following results:

1. {"getproducts": [{"name":"apple","price": 5.5},{"name":"Orange","price": 2.5},{"name": "Persimmon","price": 16}]}

How do I convert a JSON string into an object?

In actual development, it is often possible to encounter using JS to pass a JSON-formatted string into the background, if you can automatically convert the string to the desired object, it is more convenient to traverse or other operations. How is that specific?

2. Public static list<t> jsonstringtolist<t> (this string jsonstr)
4. {
6. JavaScriptSerializer serializer = new JavaScriptSerializer ();
8. List<t> Objs = serializer.deserialize<list<t>> (JSONSTR);
10. return OBJS;
12. }
16. Public static T deserialize<t> (string json)
18. {
20. T obj = activator.createinstance<t> ();
22. using (MemoryStream ms = New MemoryStream (Encoding.UTF8.GetBytes (JSON)))
24. {
26. DataContractJsonSerializer serializer = new DataContractJsonSerializer (obj.  GetType ());
28. return (T) serializer.  ReadObject (MS);
30. }
32. }
36. String jsonstr = "[{Name: ' Apple ', Price:5.5},{name: ' Orange ', price:2.5},{name: ' Persimmon ', price:16}]";
38. list<product> products = new list<product> ();
40. Products = jsonstringtolist<product> (JSONSTR);
44. foreach (var item in products )
46. {
48. Response.Write (item. Name + ":" + Item.  Price + "<br/>");
50. }
54. Public class Product
56. {
58. public string Name { get;  set;}
60. public Double price { get;  set;}
62. }

In the above example, it is convenient to convert the JSON string into a list object, the operation of the time is more convenient ~

C # Serializes an object into a JSON string