How to call ConfigurationManager in C #

Question

Good day to all, I have such a problem - there is a console application in which I want to call the ConfigurationManager but in IntelliSense there is no choice of this class.

using System.Configuration; using System.Linq; class Program { static void Main(string[] args) { var context = new TestDataContext(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString); var roles = context.Roles.ToList(); foreach (var role in roles) { Console.WriteLine("{0} {1} {2}", role.ID, role.Code, role.Name); } Console.ReadLine(); } }

Please help me figure out what I'm doing wrong? thank

@PavelMayorov MVC: "model-view-controller" - that is, the application model, user interface and user interaction are divided into three separate components.
It’s not quite clear where the Main method in your web application
@PavelMayorov "Now I create a test console application, and make a connection in References to mvc with LINQ to SQL Classes"
As a result, I get an error saying that there is no such name ConfigurationManager.

Accepted Answer · 2016-10-05T10:40:27

You need to add a link to the System.Configuration to the project. The ConfigurationManager class is in it. By default, it is not added to the project. Click in the project with the right button on the Reference, select the AddReference item, in the opened window the list of assemblies will appear. There find System.Configuration and mark it. Should work.

The using directive only says about the need to use the namespace (in theory, you can even do without it, indicating the full names of the classes, but this is inconvenient).
You also need to add to the project the assembly itself, which contains this namespace and the class you need.
The first thought was the same, but I read that the author added the assembly.
The idea that he called using "adding a build" did not even

How to call ConfigurationManager in C #

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