<PackageReference Include="System.Configuration.ConfigurationManager" Version="9.0.10" />

SettingElementCollection

public sealed class SettingElementCollection : ConfigurationElementCollection
Contains a collection of SettingElement objects. This class cannot be inherited.
public SettingElementCollection()

Initializes a new instance of the SettingElementCollection class.

public void Add(SettingElement element)

Adds a SettingElement object to the collection.

public void Clear()

Removes all SettingElement objects from the collection.

public SettingElement Get(string elementKey)

Gets a SettingElement object from the collection.

public void Remove(SettingElement element)

Removes a SettingElement object from the collection.