How to import JsonConvert in C# application?

Question

I created a C# library project. The project has this line in one class:

JsonConvert.SerializeObject(objectList);

I\'m getting error saying

Answer 1

right click on the project and select Manage NuGet Packages.. In that select Json.NET and install

After installation,

use the following namespace

using Newtonsoft.Json;

then use the following to deserialize

JsonConvert.DeserializeObject

Answer 2

Linux

If you're using Linux and .NET Core, see this question, you'll want to use

dotnet add package Newtonsoft.Json

And then add

using Newtonsoft.Json;

to any classes needing that.

Answer 3

JsonConvert is from the namespace Newtonsoft.Json, not System.ServiceModel.Web

Use NuGet to download the package

"Project" -> "Manage NuGet packages" -> "Search for "newtonsoft json". -> click "install".

Answer 4

Or if you're using dotnet Core,

add to your .csproj file

  <ItemGroup>
    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
  </ItemGroup>

And

dotnet restore

Answer 5

Tools -> NuGet Package Manager -> Package Manager Console

PM> Install-Package Newtonsoft.Json

Answer 6

Try this in C#. It works:

var jsonObject = JsonConvert.DeserializeObject(File.ReadAllText(MyFilePath));

Import below namespaces :

For JsonConvert: using Newtonsoft.Json;

For File : using System.IO;