Create Json with Linq C# example JArray with Linq C#

LINQ

In Newtonsoft library object can be iterated using LINQ. In this article we will see how we can deserialize json and put LINQ to get specific records. I have taken list of employees with empCode starting 1000 to 1100 and would put filter to get employee within a code range using LINQ C#.

Prerequisites

Visual Studio 2015 or higher
Newtonsoft library

Import

using Newtonsoft.Json.Linq;

Create a map “CityDetail“

public class CityDetail{
	string Country {get;set;}
	string CityName {get;set;}
	string CityArea {get;set;}
	string Coordinates {get;set;}
	DateTime RecordDate {get;set;}
}

Code example

string oJason=@"[
	{
		'country':'US',
		'cities':{
			'name':'Washington',
			'area": '1200Acr',
			'coordinates': '1.2.3.4'
		},
		'recordDate': '2010-07-13T17:11:04'
	}
]";

//Parase string into array
JArray objArray = JArray.Parse(oJason);

//Create list with Linq
IList<CityDetail> oCity = objArray.Select(p => new CityDetail
{
    Country = (string)p["country"],
    CityName = (string)p["cities"]["name"],
    CityArea = (string)p["cities"]["area"],
    Coordinates = (string)p["cities"]["coordinates"],
    RecordDate=(DateTime)p["recordDate"]
}).ToList();

Console.WriteLine(oCity[0].CityName);

Next >> Create Json using JTokeWriter C# code example

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Create Json with Linq C# example