<PackageReference Include="System.Configuration.ConfigurationManager" Version="4.6.0-preview5.19224.8" />

ConfigurationLocationCollection

Contains a collection of ConfigurationLocationCollection objects.
using System.Collections; namespace System.Configuration { public class ConfigurationLocationCollection : ReadOnlyCollectionBase { public ConfigurationLocation this[int index] { get { return (ConfigurationLocation)base.InnerList[index]; } } internal ConfigurationLocationCollection(ICollection col) { base.InnerList.AddRange(col); } } }