Upgrading from DotNet 4.8 to 5, ConfigurationManager replacement?

Question

I have a library in a large asp.net 4.8 site that uses the ConfigurationManager deep down in the bowels of the project. At the time, no one had a problem with the dependency on that library. Well, we're upgrading to asp.net 5 (i.e. Core) which doesn't really use the ConfigurationManager anymore, instead uses a DI version of IConfguration. Unfortunately the access of the connection strings is so deep, passing along this object from the Controller down through the libraries isn't feasible. Is there any kind of "ConfigurationManager.ConnectionStrings" equivalent that reads the application.json file's ConnectionStrings section?

Does this answer your question? [How to use System.Configuration.ConfigurationManager in .netstanard library for .net core and .netframework](https://stackoverflow.com/questions/61529217/how-to-use-system-configuration-configurationmanager-in-netstanard-library-for) — gunr2171, Apr 02 '22 at 03:44

score 1 · Answer 1 · answered Apr 02 '22 at 12:16

1

You can use the following Code

 public class SampleClass
    {
        private readonly IConfiguration _config;
        public SampleClass(IConfiguration config)
        {
            _config = config;
        }
        public string GetConnectingString(string name)
        {
            return _config.GetConnectionString(name);
        }
}

answered Apr 02 '22 at 12:16

M Rizwan

83
8

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score 0 · Answer 2 · answered Apr 02 '22 at 07:38

Assuming you have a connectionstrings section in your appsettings.json, you can use the GetConnectionString() method on the IConfiguration.

connectionString = configuration.GetConnectionString("DefaultConnection");

https://learn.microsoft.com/en-us/dotnet/api/microsoft.extensions.configuration.configurationextensions.getconnectionstring?view=dotnet-plat-ext-6.0

Upgrading from DotNet 4.8 to 5, ConfigurationManager replacement?

2 Answers2