<PackageReference Include="System.Configuration.ConfigurationManager" Version="10.0.2" />

System.Configuration.ElementInformation

public sealed class ElementInformation
Contains meta-information about an individual element within the configuration. This class cannot be inherited.
namespace System.Configuration { public sealed class ElementInformation { public PropertyInformationCollection Properties { get; } public bool IsPresent { get; } public bool IsLocked { get; } public bool IsCollection { get; } public string Source { get; } public int LineNumber { get; } public Type Type { get; } public ConfigurationValidatorBase Validator { get; } public ICollection Errors { get; } } }