C# 中，对象转JSON以及对象转JSON字符串或者反向转换

对象转JSON：

 1         private void button3_Click(object sender, EventArgs e)
 2         {
 3             SaleOrder_Save_Main.Main SM = new SaleOrder_Save_Main.Main();
 4             SM.csocode = "000001";
 5             SM.id = 100;
 6 
 7             JObject JO = new JObject();
 8 
 9             JsonSerializer JZ = new JsonSerializer();
10             JZ.NullValueHandling = NullValueHandling.Ignore;
11 
12             JO = JObject.FromObject(SM, JZ);
13 
14             SaleOrder_Save_Detail.Detail SD = new SaleOrder_Save_Detail.Detail();
15             JArray JA = new JArray();
16             {                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
17                 JObject JO1 = new JObject();
18                 SD.cinvcode = "1000";
19                 SD.autoid = 1234;
20                 SD.fsaleprice = (decimal?)12.5;
21                 JO1 = JObject.FromObject(SD, JZ);
22                 JA.Add(JO1);
23                 JO1 = new JObject();
24                 SD.cinvcode = "1200";
25                 SD.autoid = 1235;
26                 SD.fsaleprice = (decimal?)8.7;
27                 JO1 = JObject.FromObject(SD, JZ);
28                 JA.Add(JO1);
29             }
30             JO.Add("details", JA);
31             textBox1.Text= JsonConvert.SerializeObject(JO, Newtonsoft.Json.Formatting.Indented);
32         }

 Json字符串转对象：

1         private void button4_Click(object sender, EventArgs e)
2         {
3             JObject JO = (JObject)JsonConvert.DeserializeObject(textBox1.Text);
4             SaleOrder_Save_Main.Main SM = new SaleOrder_Save_Main.Main();
5             SM = JsonConvert.DeserializeObject<SaleOrder_Save_Main.Main>(textBox1.Text);
6             string json = JsonConvert.SerializeObject(JO["details"]);
7             List<SaleOrder_Save_Detail.Detail> Details = JsonConvert.DeserializeObject<List<SaleOrder_Save_Detail.Detail>>(json);
8             textBox2.AppendText(Details[0].autoid.ToString());
9         }