namespace System.Configuration { [AttributeUsage(AttributeTargets.Class | AttributeTargets.Property)] public sealed class SettingsProviderAttribute : Attribute { private readonly string _providerTypeName; public string ProviderTypeName => _providerTypeName; public SettingsProviderAttribute(string providerTypeName) { _providerTypeName = providerTypeName; } public SettingsProviderAttribute(Type providerType) { if (providerType != (Type)null) _providerTypeName = providerType.AssemblyQualifiedName; } } }