Microsoft.Extensions.Options.OptionsMonitorExtensions public static class OptionsMonitorExtensions Extension methods for IOptionsMonitor<T>. Documentation Code namespace Microsoft.Extensions.Options { public static class OptionsMonitorExtensions { public static IDisposable OnChange<[System.Runtime.CompilerServices.Nullable(2)] [System.Diagnostics.CodeAnalysis.DynamicallyAccessedMembers(System.Diagnostics.CodeAnalysis.DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)] TOptions>(this IOptionsMonitor<TOptions> monitor, Action<TOptions> listener); } }