从 JSON 字符串中获取键值对

Question

I have a json string like

{
  [
    "EnrityList": "Attribute",
    "KeyName": "AkeyName",
    "Value": "Avalue"
  ],
  [
    "EnrityList": "BusinessKey",
    "KeyName": "AkeyName",
    "Value": "Avalue"
  ]
}

I have serialized and got an object array. Could anyone help me to get the key value pair from these object array.

Answer 1

You can use JsonConvert from Newtonsoft.Json to deserialize json into Dictionary.

Dictionary<string, object> values = 
    JsonConvert.DeserializeObject<Dictionary<string, object>>(jsonstring);

Answer 2

First convert the above string in proper json format by using :

str=str.Replace('[', '{');
str=str.Replace(']', '}');
//replace first occurance of {
int startPos = str.IndexOf('{');
str=str.Substring(0,startPos)+" ["+str.Substring(startPos + 1);
//replace last occurance of }
int endPos = str.LastIndexOf('}');
str=str.Substring(0,endPos)+"]";

This makes the string

str = [{"EnrityList":"Attribute","KeyName":"AkeyName","Value":"Avalue"}, {"EnrityList":"BusinessKey","KeyName":"AkeyName","Value":"Avalue"} ]   

Now, since you got the json string, you can easily work with it.
we can use method as given by

How can I deserialize JSON to a simple Dictionary<string,string> in ASP.NET?

foreach(KeyValuePair<string, string> entry in myDictionary)
{
    // do something with entry.Value or entry.Key
}

Answer 3

Looking at your example, You are trying to receive a List of certain type of elements, So First, You will need a class to represent your data type.

class MyType
{    
  string  EnrityList;
  string  KeyName;
  string  Value;    
}

Then use DesrializeObject method to store it in the variable

var values = JsonConvert.DeserializeObject<List<MyType>>(jsonstring);