The preferred way to read related configuration values is using the [options pattern](xref:fundamentals/configuration/options). For example, to read the following configuration values:

```json
  "Position": {
    "Title": "Editor",
    "Name": "Joe Smith"
  }
```

Create the following `PositionOptions` class:

[!code-csharp[](~/fundamentals/configuration/index/samples/6.x/ConfigSample/Options/PositionOptions.cs?name=snippet)]

An options class:

* Must be non-abstract.
* Has public read-write properties of the type that have corresponding items in config are bound.
* Has its read-write properties bound to matching entries in configuration.
* Does ***not*** have its fields bound. In the preceding code, `Position` is not bound. The `Position` field is used so the string `"Position"` doesn't need to be hard coded in the app when binding the class to a configuration provider.

The following code:

* Calls [ConfigurationBinder.Bind](xref:Microsoft.Extensions.Configuration.ConfigurationBinder.Bind*) to bind the `PositionOptions` class to the `Position` section.
* Displays the `Position` configuration data.

[!code-csharp[](~/fundamentals/configuration/index/samples/6.x/ConfigSample/Pages/Test22.cshtml.cs?name=snippet)]

In the preceding code, by default, changes to the JSON configuration file after the app has started are read.

[`ConfigurationBinder.Get<T>`](xref:Microsoft.Extensions.Configuration.ConfigurationBinder.Get*) binds and returns the specified type. `ConfigurationBinder.Get<T>` may be more convenient than using `ConfigurationBinder.Bind`. The following code shows how to use `ConfigurationBinder.Get<T>` with the `PositionOptions` class:

[!code-csharp[](~/fundamentals/configuration/index/samples/6.x/ConfigSample/Pages/Test21.cshtml.cs?name=snippet)]

In the preceding code, by default, changes to the JSON configuration file after the app has started are read.

Bind also allows the concretion of an abstract class. Consider the following code which uses the abstract class `SomethingWithAName`:

[!code-csharp[](~/fundamentals/configuration/index/samples/8.x/ConfigSample/Options/NameTitleOptions.cs)]

The following code displays the `NameTitleOptions` configuration values:

[!code-csharp[](~/fundamentals/configuration/index/samples/8.x/ConfigSample/Pages/Test33.cshtml.cs?name=snippet)]

Calls to `Bind` are less strict than calls to `Get<>`:

* `Bind` allows the concretion of an abstract.
* `Get<>` has to create an instance itself.

## The Options Pattern

An alternative approach when using the ***options pattern*** is to bind the `Position` section and add it to the [dependency injection service container](xref:fundamentals/dependency-injection). In the following code, `PositionOptions` is added to the service container with <xref:Microsoft.Extensions.DependencyInjection.OptionsConfigurationServiceCollectionExtensions.Configure*> and bound to configuration:

[!code-csharp[](~/fundamentals/configuration/index/samples/6.x/ConfigSample/Program.cs?name=snippet)]

Using the preceding code, the following code reads the position options:

[!code-csharp[](~/fundamentals/configuration/index/samples/6.x/ConfigSample/Pages/Test2.cshtml.cs?name=snippet)]

In the preceding code, changes to the JSON configuration file after the app has started are ***not*** read. To read changes after the app has started, use [IOptionsSnapshot](xref:fundamentals/configuration/options#ios).