如何将字符串转换为字典列表

Question

I have a string from http response

data = "[{'value':123,'Type':'Range'},{'value':456,'Type':'Fixed'}]"

how can i convert it into list of dict in c#

Answer 1

There should be no issue there.

With either deserialising it to List<customObject> or List<Dictionary<string,string>>
using Json.net library.

public class Data{
    public string value{get;set;}
    public string Type{get;set;}
}

var testClass = JsonConvert.DeserializeObject<List<Data>>(input);   

Object dump:

Dumping object(System.Collections.Generic.List`1[Data])  
[  
   {  
       Type   : Range  
       value  : 123  
   },  
   {  
       Type   : Fixed  
       value  : 456  
   }  
]

Or directly :

var testDict = JsonConvert.DeserializeObject<List<Dictionary<string,string>>>(input);   

Result :

Dumping object(  
  System.Collections.Generic.List`1[System.Collections.Generic.Dictionary`2[String,String]])  
[  
   {  
    [  
           [value, 123]  
           ,  
           [Type, Range]  
    ]   },  
       {  
    [  
           [value, 456]  
           ,  
           [Type, Fixed]  
    ]     
   }  
]  

Don't forget the using Newtonsoft.Json;

LiveDemo

Answer 2

The better way is to use simple list of object : First create class like below

     public class respObject
     {
       public int Value { get; set; }
       public string  Type { get; set; }
     }

then DeserializeObject using Newtonsoft.Json as

        var data = "[{'value':123,'Type':'Range'},{'value':456,'Type':'Fixed'}]";

        var objList = JsonConvert.DeserializeObject<List<respObject>>(data);

But answer to your Question list of dict

         var data = "[{'value':123,'Type':'Range'},{'value':456,'Type':'Fixed'}]";

         var listDict = JsonConvert.DeserializeObject<List<Dictionary<string, string>>>(data);

Answer 3

You can try with JArray

var data = "[{'value':123,'Type':'Range'},{'value':456,'Type':'Fixed'}]";
var dict = JArray.Parse(data)
                 .ToDictionary(k => k["value"].ToString(), v => v["Type"].ToString());