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       the name JsonConvert doesn t exist in the current context     To fix that  I added System ServiceModel Web dll to references but had no luck  How can I solve this error

User · Answer

Tools -  NuGet Package Manager -  Package Manager Console  PM gt  Install-Package Newtonsoft Json

User · Answer

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

User · Answer

After instaling the package you need to add the newtonsoft json dll into assemble path by runing the flowing command   Before we can use our assembly  we have to add it to the global assembly cache  GAC   Open the Visual Studio 2008 Command Prompt again  for Vista Windows7 etc  open it as Administrator   And execute the following command  gacutil  i d  myMethodsForSSIS myMethodsForSSIS bin Release myMethodsForSSIS dll  flow this link for more informATION http   microsoft-ssis blogspot com 2011 05 referencing-custom-assembly-inside html

User · Answer

Or if you re using dotnet Core    add to your  csproj file     lt ItemGroup gt       lt PackageReference Include  Newtonsoft Json  Version  9 0 1    gt     lt  ItemGroup gt    And   dotnet restore

User · Answer

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

User · Answer

If you are developing a  Net Core WebApi or WebSite you dont not need to install newtownsoft json to perform json serialization deserealization  Just make sure that your controller method returns a JsonResult and call return Json  lt objectoToSerialize gt    like this example  namespace WebApi Controllers        Produces  application json         Route  api Accounts        public class AccountsController   Controller                  GET  api Transaction          HttpGet          public JsonResult Get                         List lt Account gt  lstAccounts               lstAccounts   AccountsFacade GetAll                 return Json lstAccounts                       If you are developing a  Net Framework WebApi or WebSite you need to use NuGet to download and install the newtonsoft json package   Project  -   Manage NuGet packages  -   Search for  newtonsoft json   -  click  install    namespace WebApi Controllers        Produces  application json         Route  api Accounts        public class AccountsController   Controller                  GET  api Transaction          HttpGet          public JsonResult Get                         List lt Account gt  lstAccounts               lstAccounts   AccountsFacade GetAll                   This line is different                 return new JsonConvert SerializeObject lstAccounts                       More details can be found here - https   docs microsoft com en-us aspnet core web-api advanced formatting view aspnetcore-2 1

User · Answer

Install it using NuGet   Install-Package Newtonsoft Json    Posting this as an answer

User · Answer

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

[c#] How to import JsonConvert in C# application?

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