Get Keys from dynamic json string in c#

Alok Sharma 0
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I have a variable json string which looks something like this

[{"UserId":1,"PlatformName":"A","Value_Number1":11,"Value_Number2":12}, 
 {"UserId":2,"PlatformName":"B","Value_Number1":13,"Value_Number2":14}]

raw output string

"[{\"UserId\":1,\"PlatformName\":\"A\",\"Value_Number1\":11,\"Value_Number2\":12}, 
  {\"UserId\":2,\"PlatformName\":\"B\",\"Value_Number1\":13,\"Value_Number2\":14}]"

I need to extract key names from this json string.

i.e userid,platfromName,Value_Number1,Value_number2

This needs to be dymanic as there will be more keys like Value_Number3,ValueNumber4 in some cases but the format will be similar.

I looked upon examples but couldn't really relate to my scenario .

How can achieve this when number of keys and its names is not known to me .

asp.net json arrays
1 Answers

you can make it in one line using Newtonsoft.Json

IEnumerable names = JArray.Parse(jsonString)
             .SelectMany(x => ((JObject) x).Properties().Select(x =>x.Name ));
usereGNL0
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