<PackageReference Include="System.Security.Permissions" Version="10.0.0-preview.4.25258.110" />

FileIOPermission

Controls the ability to access files and folders. This class cannot be inherited.
using System.Security.AccessControl; namespace System.Security.Permissions { public sealed class FileIOPermission : CodeAccessPermission, IUnrestrictedPermission { public FileIOPermissionAccess AllFiles { get; set; } public FileIOPermissionAccess AllLocalFiles { get; set; } public FileIOPermission(FileIOPermissionAccess access, string path) { } public FileIOPermission(FileIOPermissionAccess access, string[] pathList) { } public FileIOPermission(FileIOPermissionAccess access, AccessControlActions actions, string path) { } public FileIOPermission(FileIOPermissionAccess access, AccessControlActions actions, string[] pathList) { } public FileIOPermission(PermissionState state) { } public void AddPathList(FileIOPermissionAccess access, string path) { } public void AddPathList(FileIOPermissionAccess access, string[] pathList) { } public override IPermission Copy() { return this; } public override bool Equals(object o) { return base.Equals(o); } public override void FromXml(SecurityElement esd) { } public override int GetHashCode() { return base.GetHashCode(); } public string[] GetPathList(FileIOPermissionAccess access) { return null; } public override IPermission Intersect(IPermission target) { return null; } public override bool IsSubsetOf(IPermission target) { return false; } public bool IsUnrestricted() { return false; } public void SetPathList(FileIOPermissionAccess access, string path) { } public void SetPathList(FileIOPermissionAccess access, string[] pathList) { } public override SecurityElement ToXml() { return null; } public override IPermission Union(IPermission other) { return null; } } }