.NET Core 3.0 is representing a major step for the .NET community. It is interesting to analyze what’s new in the API directly from the compiled bits. In this post I will first explain how to diff .NET Core 3.0 against .NET Core 2.2 with NDepend, and then how to browse diff results.

Arguably the biggest progress of .NET Core 3.0 will be the support for Winforms and WPF on the Windows platform. Since everything is new here, compare to .NET Core 2.2, we won’t analyze this part. However it will be interesting to analyze .NET Fx Winforms/WPF APIs vs .NET Core 3.0 Winforms/WPF APIs in another post (that I finally wrote here).

Analyzing two versions of .NET Core with NDepend

It takes a few minutes to download NDepend trial, install it and start VisualNDepend.exe, and it takes a few minutes to compare .NET Core 3.0 against .NET Core 2.2. If you want to browse the diff on your machine, expect 5 to 10 minutes to get hands-on.

First Start VisualNDepend.exe and click Compare 2 versions of a code base:

For both builds, choose Add Assemblies in Folder:

Choose C:\Program Files\dotnet\shared\Microsoft.NETCore.App\2.2.2 for Older Build

Choose C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.0.0-preview-27324-5 for Newer Build

Respectively 156 and 161 assemblies are gathered. Click Ok to run two analysis, on older and newer build. Both analysis results will be then diffed automatically.

Querying new API

Let’s start with a few CQLinq code queries to explore the new .NET Core 3.0 APIs:

This query match all new public code elements, including new assemblies, namespace, types, methods and fields:

from x in Application.CodeElements where x.WasAdded() && (!x.IsTypeOrMember || x.AsTypeOrMember.IsPubliclyVisible) select x 1 2 3 4 from x in Application . CodeElements where x . WasAdded ( ) && ( ! x . IsTypeOrMember || x . AsTypeOrMember . IsPubliclyVisible ) select x

Use the NDepend query result to browse this large new API set : 5 new assemblies, 83 new namespaces, 297 new types, 4 924 new methods and 307 new fields. Note that code elements with pink background are not matched by the query, they are just here for preserving the code hierarchy in the result:

Download here this long list obtained by exporting the query result to excel. For a better result formatting I actually used this refined query to show properly parent assemblies/namespaces/types in excel columns:

from x in Application.CodeElements where x.WasAdded() && (!x.IsTypeOrMember || x.AsTypeOrMember.IsPubliclyVisible) select new { x, Assembly = x.IsAssembly ? x.Name : x.IsNamespace ? x.Parent.Name : x.AsTypeOrMember.ParentAssembly.Name, Namespace = x.IsAssembly ? " " : x.IsNamespace ? x.Name: x.AsTypeOrMember.ParentNamespace.Name, Type = x.IsAssembly ? " " : x.IsNamespace ? " " : x.IsType ? x.Name: x.AsMember.ParentType.Name, Member = x.IsMember ? x.Name : " " } 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 from x in Application . CodeElements where x . WasAdded ( ) && ( ! x . IsTypeOrMember || x . AsTypeOrMember . IsPubliclyVisible ) select new { x , Assembly = x . IsAssembly ? x . Name : x . IsNamespace ? x . Parent . Name : x . AsTypeOrMember . ParentAssembly . Name , Namespace = x . IsAssembly ? " " : x . IsNamespace ? x . Name : x . AsTypeOrMember . ParentNamespace . Name , Type = x . IsAssembly ? " " : x . IsNamespace ? " " : x . IsType ? x . Name : x . AsMember . ParentType . Name , Member = x . IsMember ? x . Name : " " }

It is interesting to just focus on the 297 new public types with the code query below. Download the list here or browse the same list at the end of this post.

from t in Application.Types where t.IsPubliclyVisible && t.WasAdded() select t 1 2 3 from t in Application . Types where t . IsPubliclyVisible && t . WasAdded ( ) select t

It is also interesting to browse the new 1.101 public methods and 38 public fields added on public types that existed already in .NET Core 2.2. Download this list here.

from m in Application.Members where m.IsPubliclyVisible && m.WasAdded() && !m.ParentType.WasAdded() select new { m } 1 2 3 4 5 from m in Application . Members where m . IsPubliclyVisible && m . WasAdded ( ) && ! m . ParentType . WasAdded ( ) select new { m }

API Breaking Changes

NDepend proposes 6 default rules to browse API breaking changes.

These rules matche 19 public types removed from .NET Core 2.2 (see list below) 176 public methods removed and 36 public fields removed

Listing Methods Changed

Exploring the API evolution is useful for API consumers. For those working on the framework .NET Core itself, it is interesting to also browse implementation changes. The NDepend search by change panel proposes various options for that. Note that this search panel is actually a code query generator. The Edit query button proposes to edit and refine the currently generated query.

Another interesting point is that it is a semantic implementation change. All matched methods do behave differently at runtime. This makes this tool ideal to plan code change review without bothering with formatting and comments change.

Matched code elements can be highlighted in the metric view. From the screenshot above we can see at a glance that System.Xml and System.Data are much more stable than System.RunTime for example. By zooming in the view, we can get more information about which code was churned.

In the query result panel, a code element is underlined when its implementation changed. If you have compiled both source versions on your machine and analyzed those compiled versions, you can right click an underlined method and directly compare the diff in source code.

I hope you see value both in the results offered and in the how-to-diff procedure that can be applied to any .NET code base, assuming you have 2 versions to compare.

New .NET Core 3.0 types

Here is the list of the 297 new types added to .NET Core 3.0.

ParentAssembly Full Name WindowsBase System.Windows.Markup .ValueSerializerAttribute System.Xml.Linq System.Xml.XPath.XDocumentExtensions System.Threading.ThreadPool System.Threading.IThreadPoolWorkItem System.Threading.Tasks System.Runtime.CompilerServices .AsyncIteratorMethodBuilder System.Threading.Tasks System.Runtime.CompilerServices .ConfiguredCancelableAsyncEnumerable<T> System.Text.Json System.Text.Json.JsonCommentHandling System.Text.Json System.Text.Json.JsonTokenType System.Text.Json System.Text.Json.JsonDocument System.Text.Json System.Text.Json.JsonElement System.Text.Json System.Text.Json .JsonElement+ArrayEnumerator System.Text.Json System.Text.Json .JsonElement+ObjectEnumerator System.Text.Json System.Text.Json.JsonProperty System.Text.Json System.Text.Json.JsonValueType System.Text.Json System.Text.Json.JsonReaderException System.Text.Json System.Text.Json.JsonReaderOptions System.Text.Json System.Text.Json.JsonReaderState System.Text.Json System.Text.Json.Utf8JsonReader System.Text.Json System.Text.Json.JsonWriterOptions System.Text.Json System.Text.Json.JsonWriterState System.Text.Json System.Text.Json.Utf8JsonWriter System.Security.Principal.Windows System.Security.Principal .WindowsAccountType System.Security.Cryptography.Primitives System.Security.Cryptography .PbeEncryptionAlgorithm System.Security.Cryptography.Primitives System.Security.Cryptography .PbeParameters System.Security.Cryptography.Algorithms System.Security.Cryptography.AesCcm System.Security.Cryptography.Algorithms System.Security.Cryptography.AesGcm System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.CornerRadius System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.DurationType System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Duration System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.GridUnitType System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.GridLength System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Thickness System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.LayoutCycleException System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Markup .XamlParseException System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Automation .ElementNotAvailableException System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Automation .ElementNotEnabledException System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Media.Matrix System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Media.Media3D.Matrix3D System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Media.Animation.KeyTime System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Media.Animation .RepeatBehaviorType System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Media.Animation .RepeatBehavior System.Runtime.WindowsRuntime.UI.Xaml Windows.UI.Xaml.Controls.Primitives .GeneratorPosition System.Runtime.WindowsRuntime Windows.UI.Color System.Runtime.WindowsRuntime Windows.Foundation.Point System.Runtime.WindowsRuntime Windows.Foundation.Rect System.Runtime.WindowsRuntime Windows.Foundation.Size System.Runtime.WindowsRuntime System.WindowsRuntimeSystemExtensions System.Runtime.WindowsRuntime System.IO .WindowsRuntimeStorageExtensions System.Runtime.WindowsRuntime System.IO.WindowsRuntimeStreamExtensions System.Runtime.WindowsRuntime System.Threading.DispatcherQueueHandler System.Runtime.WindowsRuntime System.Threading.DispatcherQueuePriority System.Runtime.WindowsRuntime System.Runtime.InteropServices .WindowsRuntime.AsyncInfo System.Runtime.WindowsRuntime System.Runtime.InteropServices .WindowsRuntime.WindowsRuntimeBuffer System.Runtime.WindowsRuntime System.Runtime.InteropServices .WindowsRuntime .WindowsRuntimeBufferExtensions System.Runtime.Serialization System.Runtime.Serialization .ISerializationSurrogateProvider System.Runtime.Loader System.Runtime.Loader .AssemblyDependencyResolver System.Runtime.Intrinsics System.MidpointRounding System.Runtime.Intrinsics System.Runtime.Intrinsics.Vector64 System.Runtime.Intrinsics System.Runtime.Intrinsics.Vector64<T> System.Runtime.Intrinsics System.Runtime.Intrinsics.Vector128 System.Runtime.Intrinsics System.Runtime.Intrinsics.Vector128<T> System.Runtime.Intrinsics System.Runtime.Intrinsics.Vector256 System.Runtime.Intrinsics System.Runtime.Intrinsics.Vector256<T> System.Runtime.Intrinsics System.Runtime.Intrinsics.X86 .FloatComparisonMode System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Aes System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Avx System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Avx2 System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Bmi1 System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Bmi2 System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Fma System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Lzcnt System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Pclmulqdq System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Popcnt System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Sse System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Sse2 System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Sse3 System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Sse41 System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Sse42 System.Runtime.Intrinsics System.Runtime.Intrinsics.X86.Ssse3 System.Runtime.Intrinsics System.Runtime.Intrinsics.Arm.Arm64.Aes System.Runtime.Intrinsics System.Runtime.Intrinsics.Arm.Arm64.Base System.Runtime.Intrinsics System.Runtime.Intrinsics.Arm.Arm64.Sha1 System.Runtime.Intrinsics System.Runtime.Intrinsics.Arm.Arm64 .Sha256 System.Runtime.Intrinsics System.Runtime.Intrinsics.Arm.Arm64.Simd System.Runtime.InteropServices System.Runtime.CompilerServices .IDispatchConstantAttribute System.Runtime.InteropServices System.Runtime.InteropServices .StandardOleMarshalObject System.Runtime.InteropServices System.Runtime.InteropServices .NativeLibrary System.Runtime.Extensions System.AppDomainSetup System.Runtime.Extensions System.Security.IStackWalk System.Runtime.Extensions System.Security.PermissionSet System.Runtime.Extensions System.Security.Permissions .PermissionState System.Runtime.Extensions System.Runtime.ProfileOptimization System.Runtime System.ArgIterator System.Runtime System.IAsyncDisposable System.Runtime System.Index System.Runtime System.Range System.Runtime System.Text.Rune System.Runtime System.Text.StringRuneEnumerator System.Runtime System.Globalization.ISOWeek System.Runtime System.Threading.Tasks.Sources .ManualResetValueTaskSourceCore<TResult> System.Runtime System.Runtime.Remoting.ObjectHandle System.Runtime System.Runtime.CompilerServices .AsyncIteratorStateMachineAttribute System.Runtime System.Runtime.CompilerServices .CallerArgumentExpressionAttribute System.Runtime System.Collections.Generic .IAsyncEnumerable<T> System.Runtime System.Collections.Generic .IAsyncEnumerator<T> System.Private.CoreLib System.IAsyncDisposable System.Private.CoreLib System.Index System.Private.CoreLib System.Range System.Private.CoreLib System.Text .StringBuilder+ChunkEnumerator System.Private.CoreLib System.Text.Rune System.Private.CoreLib System.Text.SpanRuneEnumerator System.Private.CoreLib System.Text.StringRuneEnumerator System.Private.CoreLib System.Globalization.ISOWeek System.Private.CoreLib System.Buffers.OperationStatus System.Private.CoreLib System.Buffers.StandardFormat System.Private.CoreLib System.Buffers.Text.Utf8Formatter System.Private.CoreLib System.Buffers.Text.Utf8Parser System.Private.CoreLib System.Buffers.Binary.BinaryPrimitives System.Private.CoreLib System.Threading.Tasks.Sources .ManualResetValueTaskSourceCore<TResult> System.Private.CoreLib System.Runtime.Remoting.ObjectHandle System.Private.CoreLib System.Runtime.Loader .AssemblyDependencyResolver System.Private.CoreLib System.Runtime.CompilerServices .AsyncIteratorMethodBuilder System.Private.CoreLib System.Runtime.CompilerServices .AsyncIteratorStateMachineAttribute System.Private.CoreLib System.Runtime.CompilerServices .CallerArgumentExpressionAttribute System.Private.CoreLib System.Runtime.CompilerServices .ConfiguredCancelableAsyncEnumerable<T> System.Private.CoreLib System.Runtime.CompilerServices .ConfiguredCancelableAsyncEnumerable<T >+Enumerator System.Private.CoreLib System.Runtime.Intrinsics.Vector64 System.Private.CoreLib System.Runtime.Intrinsics.Vector128 System.Private.CoreLib System.Runtime.Intrinsics.Vector256 System.Private.CoreLib System.Runtime.Intrinsics.X86.Bmi1+X64 System.Private.CoreLib System.Runtime.Intrinsics.X86.Bmi2+X64 System.Private.CoreLib System.Runtime.Intrinsics.X86.Lzcnt+X64 System.Private.CoreLib System.Runtime.Intrinsics.X86.Popcnt+X64 System.Private.CoreLib System.Runtime.Intrinsics.X86.Sse+X64 System.Private.CoreLib System.Runtime.Intrinsics.X86.Sse2+X64 System.Private.CoreLib System.Runtime.Intrinsics.X86.Sse41+X64 System.Private.CoreLib System.Runtime.Intrinsics.X86.Sse42+X64 System.Private.CoreLib System.Runtime.InteropServices .DllImportResolver System.Private.CoreLib System.Runtime.InteropServices .NativeLibrary System.Private.CoreLib System.Runtime.InteropServices .ComActivationContext System.Private.CoreLib System.Runtime.InteropServices .ComActivationContextInternal System.Private.CoreLib System.Runtime.InteropServices .ComActivator System.Private.CoreLib System.Runtime.InteropServices .ComEventInterfaceAttribute System.Private.CoreLib System.Runtime.InteropServices .DefaultParameterValueAttribute System.Private.CoreLib System.Diagnostics.DebugProvider System.Private.CoreLib System.Collections.Generic .IAsyncEnumerable<T> System.Private.CoreLib System.Collections.Generic .IAsyncEnumerator<T> System.Private.CoreLib Internal.Resources.PRIExceptionInfo System.Private.CoreLib Internal.Resources .WindowsRuntimeResourceManagerBase System.Private.CoreLib Internal.Threading.Tasks .AsyncCausalitySupport System.Private.CoreLib Internal.Runtime.InteropServices .WindowsRuntime.ExceptionSupport System.ObjectModel System.Reflection.ICustomTypeProvider System.ObjectModel System.ComponentModel .TypeConverterAttribute System.ObjectModel System.ComponentModel .TypeDescriptionProviderAttribute System.ObjectModel System.Windows.Markup .ValueSerializerAttribute System.Net.Sockets System.Net.Sockets.SafeSocketHandle System.Memory System.Text.SpanRuneEnumerator System.Memory System.Buffers.SequenceReader<T> System.Memory System.Buffers.SequenceReaderExtensions System System.StringNormalizationExtensions System System.Reflection.ICustomTypeProvider System System.Windows.Markup .ValueSerializerAttribute System System.Runtime.InteropServices .StandardOleMarshalObject System System.Diagnostics.ConsoleTraceListener System System.Diagnostics .XmlWriterTraceListener System System.Diagnostics.StackFrameExtensions System System.Security.SecureStringMarshal System System.Net.Sockets .SocketReceiveFromResult System System.Net.Sockets .SocketReceiveMessageFromResult System System.Net.Sockets.SocketTaskExtensions System.Diagnostics.TextWriterTraceListener System.Diagnostics.ConsoleTraceListener System.Diagnostics.TextWriterTraceListener System.Diagnostics .XmlWriterTraceListener System.Data System.Xml.XmlDataDocument System.Data System.Data.Common.DbColumn System.Data System.Data.Common .DbDataReaderExtensions System.Data System.Data.Common .IDbColumnSchemaGenerator System.Core System.Security.Cryptography.AesCng System.Core System.Security.Cryptography.DSACng System.Core System.Security.Cryptography .TripleDESCng System.Core System.Security.Cryptography.ECCurve System.Core System.Security.Cryptography .ECParameters System.Core System.Security.Cryptography.ECPoint System.Core System.Security.Cryptography .IncrementalHash System.Core System.Security.Cryptography .X509Certificates.CertificateRequest System.Core System.Security.Cryptography .X509Certificates .DSACertificateExtensions System.Core System.Security.Cryptography .X509Certificates .SubjectAlternativeNameBuilder System.Core System.Security.Cryptography .X509Certificates.X509SignatureGenerator System.ComponentModel.TypeConverter System.ComponentModel.VersionConverter System.ComponentModel.Primitives System.ComponentModel .InvalidAsynchronousStateException System.ComponentModel.DataAnnotations System.ComponentModel.DataAnnotations .AssociatedMetadataTypeTypeDescriptionPr ovider System.ComponentModel.DataAnnotations System.ComponentModel.DataAnnotations .MetadataTypeAttribute System.ComponentModel.Annotations System.ComponentModel.DataAnnotations .AssociatedMetadataTypeTypeDescriptionPr ovider System.ComponentModel.Annotations System.ComponentModel.DataAnnotations .MetadataTypeAttribute mscorlib System.TupleExtensions mscorlib System.AppDomainSetup mscorlib System.Globalization .GlobalizationExtensions mscorlib System.Threading.ThreadPoolBoundHandle mscorlib System.Threading.PreAllocatedOverlapped mscorlib System.Runtime.ProfileOptimization mscorlib System.Runtime.Remoting.ObjectHandle mscorlib System.Runtime.CompilerServices .RuntimeFeature mscorlib System.Runtime.CompilerServices .IsByRefLikeAttribute mscorlib System.Runtime.CompilerServices.ITuple mscorlib System.Runtime.CompilerServices .IsReadOnlyAttribute mscorlib System.Runtime.CompilerServices .TupleElementNamesAttribute mscorlib System.Runtime.CompilerServices .IDispatchConstantAttribute mscorlib System.Runtime.InteropServices .RuntimeInformation mscorlib System.Runtime.InteropServices .Architecture mscorlib System.Runtime.InteropServices .OSPlatform mscorlib System.Reflection.Emit.DynamicILInfo mscorlib System.Security.IStackWalk mscorlib System.Security.PermissionSet mscorlib System.Security.Permissions .PermissionState mscorlib System.Security.Principal .WindowsAccountType mscorlib System.Diagnostics.Tracing .EventSourceCreatedEventArgs Microsoft.VisualBasic Microsoft.VisualBasic.Collection Microsoft.VisualBasic Microsoft.VisualBasic.CompareMethod Microsoft.VisualBasic Microsoft.VisualBasic.ComClassAttribute Microsoft.VisualBasic Microsoft.VisualBasic.ControlChars Microsoft.VisualBasic Microsoft.VisualBasic.DateAndTime Microsoft.VisualBasic Microsoft.VisualBasic.Information Microsoft.VisualBasic Microsoft.VisualBasic .MyGroupCollectionAttribute Microsoft.VisualBasic Microsoft.VisualBasic.VariantType Microsoft.VisualBasic Microsoft.VisualBasic .VBFixedArrayAttribute Microsoft.VisualBasic Microsoft.VisualBasic .VBFixedStringAttribute Microsoft.VisualBasic Microsoft.VisualBasic.VBMath Microsoft.VisualBasic Microsoft.VisualBasic.FileIO.FileSystem Microsoft.VisualBasic Microsoft.VisualBasic.FileIO .DeleteDirectoryOption Microsoft.VisualBasic Microsoft.VisualBasic.FileIO .RecycleOption Microsoft.VisualBasic Microsoft.VisualBasic.FileIO .SearchOption Microsoft.VisualBasic Microsoft.VisualBasic.FileIO .UICancelOption Microsoft.VisualBasic Microsoft.VisualBasic.FileIO.UIOption Microsoft.VisualBasic Microsoft.VisualBasic.FileIO .MalformedLineException Microsoft.VisualBasic Microsoft.VisualBasic.FileIO .SpecialDirectories Microsoft.VisualBasic Microsoft.VisualBasic.FileIO .TextFieldParser Microsoft.VisualBasic Microsoft.VisualBasic.FileIO.FieldType Microsoft.VisualBasic Microsoft.VisualBasic.CompilerServices .BooleanType Microsoft.VisualBasic Microsoft.VisualBasic.CompilerServices .DecimalType Microsoft.VisualBasic Microsoft.VisualBasic.CompilerServices .Versioned Microsoft.VisualBasic Microsoft.VisualBasic.CompilerServices .DoubleType Microsoft.VisualBasic Microsoft.VisualBasic .ApplicationServices.StartupEventArgs Microsoft.VisualBasic Microsoft.VisualBasic .ApplicationServices .StartupNextInstanceEventArgs Microsoft.VisualBasic Microsoft.VisualBasic .ApplicationServices .UnhandledExceptionEventArgs Microsoft.VisualBasic Microsoft.VisualBasic.Devices .NetworkAvailableEventArgs Microsoft.VisualBasic.Core Microsoft.VisualBasic.CallType Microsoft.VisualBasic.Core Microsoft.VisualBasic.Collection Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompareMethod Microsoft.VisualBasic.Core Microsoft.VisualBasic.ComClassAttribute Microsoft.VisualBasic.Core Microsoft.VisualBasic.Constants Microsoft.VisualBasic.Core Microsoft.VisualBasic.ControlChars Microsoft.VisualBasic.Core Microsoft.VisualBasic.DateAndTime Microsoft.VisualBasic.Core Microsoft.VisualBasic .HideModuleNameAttribute Microsoft.VisualBasic.Core Microsoft.VisualBasic.Information Microsoft.VisualBasic.Core Microsoft.VisualBasic .MyGroupCollectionAttribute Microsoft.VisualBasic.Core Microsoft.VisualBasic.Strings Microsoft.VisualBasic.Core Microsoft.VisualBasic.VariantType Microsoft.VisualBasic.Core Microsoft.VisualBasic .VBFixedArrayAttribute Microsoft.VisualBasic.Core Microsoft.VisualBasic .VBFixedStringAttribute Microsoft.VisualBasic.Core Microsoft.VisualBasic.VBMath Microsoft.VisualBasic.Core Microsoft.VisualBasic.FileIO.FileSystem Microsoft.VisualBasic.Core Microsoft.VisualBasic.FileIO .DeleteDirectoryOption Microsoft.VisualBasic.Core Microsoft.VisualBasic.FileIO .RecycleOption Microsoft.VisualBasic.Core Microsoft.VisualBasic.FileIO .SearchOption Microsoft.VisualBasic.Core Microsoft.VisualBasic.FileIO .UICancelOption Microsoft.VisualBasic.Core Microsoft.VisualBasic.FileIO.UIOption Microsoft.VisualBasic.Core Microsoft.VisualBasic.FileIO .MalformedLineException Microsoft.VisualBasic.Core Microsoft.VisualBasic.FileIO .SpecialDirectories Microsoft.VisualBasic.Core Microsoft.VisualBasic.FileIO .TextFieldParser Microsoft.VisualBasic.Core Microsoft.VisualBasic.FileIO.FieldType Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .BooleanType Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .Conversions Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .DecimalType Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .DesignerGeneratedAttribute Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .SiteDelegate0 Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .SiteDelegate1 Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .SiteDelegate2 Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .SiteDelegate3 Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .SiteDelegate4 Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .SiteDelegate5 Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .SiteDelegate6 Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .SiteDelegate7 Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .IncompleteInitialization Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .NewLateBinding Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .ObjectFlowControl Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .ObjectFlowControl+ForLoopControl Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .Operators Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .OptionCompareAttribute Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .OptionTextAttribute Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .ProjectData Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .StandardModuleAttribute Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .StaticLocalInitFlag Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .Utils Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .Versioned Microsoft.VisualBasic.Core Microsoft.VisualBasic.CompilerServices .DoubleType Microsoft.VisualBasic.Core Microsoft.VisualBasic .ApplicationServices.StartupEventArgs Microsoft.VisualBasic.Core Microsoft.VisualBasic .ApplicationServices .StartupNextInstanceEventArgs Microsoft.VisualBasic.Core Microsoft.VisualBasic .ApplicationServices .UnhandledExceptionEventArgs Microsoft.VisualBasic.Core Microsoft.VisualBasic.Devices .NetworkAvailableEventArgs