System.ComponentModel.Annotations by: Microsoft
  • 17.039k total downloads
  • Latest version: 4.4.1
Provides attributes that are used to define metadata for objects used as data sources. Commonly Used Types: System.ComponentModel.DataAnnotations.ValidationResult System.ComponentModel.DataAnnotations.IValidatableObject System.ComponentModel.DataAnnotations.ValidationAttribute System.ComponentModel.DataAnnotations.RequiredAttribute System.ComponentModel.DataAnnotations.StringLengthAttribute System.ComponentModel.DataAnnotations.DisplayAttribute System.ComponentModel.DataAnnotations.RegularExpressionAttribute System.ComponentModel.DataAnnotations.DataTypeAttribute System.ComponentModel.DataAnnotations.RangeAttribute System.ComponentModel.DataAnnotations.KeyAttribute 0f6d0a02c9cc2e766dd543ff24135f16e9a971e4 When using NuGet 3.x this package requires at least version 3.4.
System.Configuration.ConfigurationManager by: Microsoft
  • 16.588k total downloads
  • Latest version: 4.5.0
Provides types that support using configuration files. Commonly Used Types: System.Configuration.Configuration System.Configuration.ConfigurationManager 30ab651fcb4354552bd4891619a0bdd81e0ebdbf When using NuGet 3.x this package requires at least version 3.4.
System.Data.Common by: Microsoft
  • 19.129k total downloads
  • Latest version: 4.3.0
Provides the base abstract classes, including System.Data.DbConnection and System.Data.DbCommand, for all data providers. Commonly Used Types: System.DBNull System.Data.Common.DbConnection System.Data.Common.DbException System.Data.Common.DbParameter System.Data.DbType System.Data.Common.DbDataReader System.Data.Common.DbCommand System.Data.Common.DbTransaction System.Data.Common.DbParameterCollection System.Data.Common.DbProviderFactory When using NuGet 3.x this package requires at least version 3.4.
System.Diagnostics.FileVersionInfo by: Microsoft
  • 4.556k total downloads
  • Latest version: 4.0.0
Provides the System.Diagnostics.FileVersionInfo class, which allows access to Win32 version resource information for a physical file on disk. Commonly Used Types: System.Diagnostics.FileVersionInfo When using NuGet 3.x this package requires at least version 3.4.
System.Diagnostics.PerformanceCounter by: Microsoft
  • 27.271k total downloads
  • Latest version: 4.5.0
Provides the System.Diagnostics.PerformanceCounter class, which allows access to Windows performance counters. Commonly Used Types: System.Diagnostics.PerformanceCounter 30ab651fcb4354552bd4891619a0bdd81e0ebdbf When using NuGet 3.x this package requires at least version 3.4.
System.Diagnostics.StackTrace by: Microsoft
  • 4.524k total downloads
  • Latest version: 4.0.1
Provides the System.Diagnostics.StackTrace class, which allows interaction with local and remote processes. Commonly Used Types: System.Diagnostics.StackFrame System.Diagnostics.StackTrace When using NuGet 3.x this package requires at least version 3.4.
System.Diagnostics.TraceSource by: Microsoft
  • 14.451k total downloads
  • Latest version: 4.3.0
Provides classes that help you trace the execution of your code. Developers should prefer the classes in the ETW-based System.Diagnostics.Tracing package. Commonly Used Types: System.Diagnostics.TraceListener System.Diagnostics.TraceLevel System.Diagnostics.TraceSource System.Diagnostics.TraceEventType System.Diagnostics.DefaultTraceListener System.Diagnostics.Trace When using NuGet 3.x this package requires at least version 3.4.
System.Drawing.Common by: Microsoft
  • 14.194k total downloads
  • Latest version: 4.6.0-preview6.19303.8
Provides access to GDI+ graphics functionality. Commonly Used Types: System.Drawing.Bitmap System.Drawing.BitmapData System.Drawing.Brush System.Drawing.Font System.Drawing.Graphics System.Drawing.Icon When using NuGet 3.x this package requires at least version 3.4.
System.Interactive.Async by: .NET Foundation and Contributors
  • 1.961k total downloads
  • Latest version: 3.1.1
  • Ix Interactive Extensions Enumerable Asynchronous
Interactive Extensions (Ix) Async Library used to express queries over asynchronous enumerable sequences.
System.IO.Pipelines by: Microsoft
  • 26.906k total downloads
  • Latest version: 4.5.1
Single producer single consumer byte buffer management. Commonly Used Types: System.IO.Pipelines.Pipe System.IO.Pipelines.PipeWriter System.IO.Pipelines.PipeReader 96925bba1377b6042fc7322564b600a4e651f7fd When using NuGet 3.x this package requires at least version 3.4.
System.Memory by: Microsoft
  • 58.372k total downloads
  • Latest version: 4.5.3
Provides types for efficient representation and pooling of managed, stack, and native memory segments and sequences of such segments, along with primitives to parse and format UTF-8 encoded text stored in those memory segments. Commonly Used Types: System.Span System.ReadOnlySpan System.Memory System.ReadOnlyMemory System.Buffers.MemoryPool System.Buffers.ReadOnlySequence System.Buffers.Text.Utf8Parser System.Buffers.Text.Utf8Formatter c6cf790234e063b855fcdb50f3fb1b3cfac73275 When using NuGet 3.x this package requires at least version 3.4.
System.Net.Http by: Microsoft
  • 2.616k total downloads
  • Latest version: 4.3.4
Provides a programming interface for modern HTTP applications, including HTTP client components that allow applications to consume web services over HTTP and HTTP components that can be used by both clients and servers for parsing HTTP headers. Commonly Used Types: System.Net.Http.HttpResponseMessage System.Net.Http.DelegatingHandler System.Net.Http.HttpRequestException System.Net.Http.HttpClient System.Net.Http.MultipartContent System.Net.Http.Headers.HttpContentHeaders System.Net.Http.HttpClientHandler System.Net.Http.StreamContent System.Net.Http.FormUrlEncodedContent System.Net.Http.HttpMessageHandler When using NuGet 3.x this package requires at least version 3.4.
System.Net.NameResolution by: Microsoft
  • 5.952k total downloads
  • Latest version: 4.0.0
Provides the System.Net.Dns class, which enables developers to perform simple domain name resolution. Commonly Used Types: System.Net.Dns System.Net.IPHostEntry When using NuGet 3.x this package requires at least version 3.4.
System.Net.Requests by: Microsoft
  • 1.896k total downloads
  • Latest version: 4.0.11
Provides older classes (such as HttpWebRequest and HttpWebResponse) for sending HTTP requests and receiving HTTP responses from a resource identified by a URI. Developers should prefer the classes in the System.Net.Http package. Commonly Used Types: System.Net.HttpWebRequest System.Net.HttpWebResponse System.Net.HttpRequestHeader System.Net.WebException System.Net.WebExceptionStatus System.Net.WebRequest System.Net.WebResponse When using NuGet 3.x this package requires at least version 3.4.
System.Net.Security by: Microsoft
  • 4.433k total downloads
  • Latest version: 4.0.0
Provides types, such as System.Net.Security.SslStream, that uses SSL/TLS protocols to provide secure network communication between client and server endpoints. Commonly Used Types: System.Net.Security.SslStream System.Net.Security.ExtendedProtectionPolicy When using NuGet 3.x this package requires at least version 3.4.
System.Net.WebHeaderCollection by: Microsoft
  • 1.894k total downloads
  • Latest version: 4.0.1
Contains types that represent HTTP request and response headers. This library is used with classes such as System.Net.HttpWebRequest and System.Net.HttpWebResponse and allows developers to query/edit header names/values. Commonly Used Types: System.Net.HttpRequestHeader System.Net.HttpResponseHeader System.Net.WebHeaderCollection When using NuGet 3.x this package requires at least version 3.4.
System.Numerics.Vectors by: Microsoft
  • 40.485k total downloads
  • Latest version: 4.4.0
Provides hardware-accelerated numeric types, suitable for high-performance processing and graphics applications. Commonly Used Types: System.Numerics.Matrix3x2 System.Numerics.Matrix4x4 System.Numerics.Plane System.Numerics.Quaternion System.Numerics.Vector2 System.Numerics.Vector3 System.Numerics.Vector4 System.Numerics.Vector System.Numerics.Vector<T> 8321c729934c0f8be754953439b88e6e1c120c24
System.Reflection.Metadata by: Microsoft
  • 4.22k total downloads
  • Latest version: 1.3.0
This packages provides a low-level .NET (ECMA-335) metadata reader. It's geared for performance and is the ideal choice for building higher-level libraries that intend to provide their own object model, such as compilers. Commonly Used Types: System.Reflection.Metadata.MetadataReader System.Reflection.PortableExecutable.PEReader
System.Runtime.CompilerServices.Unsafe by: Microsoft
  • 36.995k total downloads
  • Latest version: 4.5.2
Provides the System.Runtime.CompilerServices.Unsafe class, which provides generic, low-level functionality for manipulating pointers. Commonly Used Types: System.Runtime.CompilerServices.Unsafe 02b11eeee1fbc5f3ef43a1452fe07efd25fa1715 When using NuGet 3.x this package requires at least version 3.4.
System.Security.Claims by: Microsoft
  • 7.92k total downloads
  • Latest version: 4.0.1
Provides classes that implement claims-based identity in the .NET Framework, including classes that represent claims, claims-based identities, and claims-based principals. Commonly Used Types: System.Security.Principal.GenericIdentity System.Security.Claims.Claim System.Security.Claims.ClaimsIdentity System.Security.Claims.ClaimsPrincipal System.Security.Principal.GenericPrincipal When using NuGet 3.x this package requires at least version 3.4.