<PackageReference Include="System.Security.Permissions" Version="9.0.10" />

FileDialogPermission

Controls the ability to access files or folders through a File dialog box. This class cannot be inherited.
namespace System.Security.Permissions { [Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId = "SYSLIB0003", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")] public sealed class FileDialogPermission : CodeAccessPermission, IUnrestrictedPermission { public FileDialogPermissionAccess Access { get; set; } public FileDialogPermission(FileDialogPermissionAccess access) { } public FileDialogPermission(PermissionState state) { } public override IPermission Copy() { return this; } public override void FromXml(SecurityElement esd) { } public override IPermission Intersect(IPermission target) { return null; } public override bool IsSubsetOf(IPermission target) { return false; } public bool IsUnrestricted() { return false; } public override SecurityElement ToXml() { return null; } public override IPermission Union(IPermission target) { return null; } } }