Configuration.GetSection always returns null

Question

Every time I call Configuration.GetSection, the Value property of the returned object is always null.

My Startup constructor

Answer 1

1. Right-click on appsettings.json and go to Properties.
2. Select Copy to output directory = Copy always.

Answer 2

Try add ConfigurationProvider to ConfigurationBuilder.

App configuration is provided from:

• appsettings.json using the File Configuration Provider.
• appsettings.{Environment}.json using the File Configuration Provider.

Answer 3

Just modify your ConfigureServices method to be like following:

public void ConfigureServices(IServiceCollection services)
{
    services.AddOptions();

    services.Configure<SqliteSettings>(Configuration.GetSection("SqliteSettings"));

    services.AddMvc();
}

and it should work.

Answer 4

According to the Microsoft Docs: "When GetSection returns a matching section, Value isn't populated. A Key and Path are returned when the section exists."

If you want to see the values of that section you will need to call the GetChildren() method: Configuration.GetSection("SqliteSettings").GetChildren();

Or you can use: Configuration.GetSection("SqliteSettings").Get<SqliteSettings>(). The JSON does not need to have the same amount of properties to match. Unmatched nullable properties will be set to null and non-nullable unmatched properties will be set to their default value (e.g. int will be set to 0).

Answer 5

This worked for me in a console application:

var connectionString = config["ConnectionStrings:DefaultConnection"]

Answer 6

If you have an appsettings.Development.json file, make sure the "ConnectionStrings:DefaultConnection" settings are the same in both the appsettings.Development.json and appsettings.json files.