System.Configuration.ConfigurationManager by: Microsoft

Provides types that support using XML configuration files (app.config). This package exists only to support migrating existing .NET Framework code that already uses System.Configuration. When writing new code, use another configuration system instead, such as Microsoft.Extensions.Configuration.

System.Console by: Microsoft

Provides the System.Console class, which represents the standard input, output and error streams for console applications. Commonly Used Types: System.Console System.ConsoleColor

System.Data.Common by: Microsoft

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

System.Data.Odbc by: Microsoft

Provides a collection of classes used to access an ODBC data source in the managed space Commonly Used Types: System.Data.Odbc.OdbcCommand System.Data.Odbc.OdbcConnection System.Data.Odbc.OdbcDataReader System.Data.Odbc.OdbcDataAdapter System.Data.Odbc.OdbcParameter System.Data.Odbc.OdbcParameterCollection System.Data.Odbc.OdbcTransaction

System.Data.OleDb by: Microsoft

Provides a collection of classes for OLEDB. Commonly Used Types: System.Data.OleDb.OleDbCommand System.Data.OleDb.OleDbCommandBuilder System.Data.OleDb.OleDbConnection System.Data.OleDb.OleDbDataAdapter System.Data.OleDb.OleDbDataReader System.Data.OleDb.OleDbParameter System.Data.OleDb.OleDbParameterCollection System.Data.OleDb.OleDbTransaction

System.Data.SqlClient by: Microsoft

Provides the data provider for SQL Server. These classes provide access to versions of SQL Server and encapsulate database-specific protocols, including tabular data stream (TDS) Commonly Used Types: System.Data.SqlClient.SqlConnection System.Data.SqlClient.SqlException System.Data.SqlClient.SqlParameter System.Data.SqlDbType System.Data.SqlClient.SqlDataReader System.Data.SqlClient.SqlCommand System.Data.SqlClient.SqlTransaction System.Data.SqlClient.SqlParameterCollection System.Data.SqlClient.SqlClientFactory

System.Data.SQLite by: SQLite Development Team

The official SQLite database engine for both x86 and x64 along with the ADO.NET provider. This package includes support for LINQ and Entity Framework 6.

System.Data.SQLite.Core by: SQLite Development Team

The official SQLite database engine for both x86 and x64 along with the ADO.NET provider.

System.Diagnostics.Contracts by: Microsoft

Provides static classes for representing program contracts such as preconditions, postconditions, and invariants. Commonly Used Types: System.Diagnostics.Contracts.Contract System.Diagnostics.Contracts.ContractClassAttribute System.Diagnostics.Contracts.ContractClassForAttribute System.Diagnostics.Contracts.ContractFailureKind System.Runtime.CompilerServices.ContractHelper System.Diagnostics.Contracts.ContractInvariantMethodAttribute System.Diagnostics.Contracts.PureAttribute System.Diagnostics.Contracts.ContractArgumentValidatorAttribute System.Diagnostics.Contracts.ContractVerificationAttribute System.Diagnostics.Contracts.ContractOptionAttribute

System.Diagnostics.Debug by: Microsoft

Provides classes and attributes that allows basic interaction with a debugger. Commonly Used Types: System.Diagnostics.Debug System.Diagnostics.DebuggerStepThroughAttribute System.Diagnostics.Debugger System.Diagnostics.DebuggerDisplayAttribute System.Diagnostics.DebuggerBrowsableAttribute System.Diagnostics.DebuggerBrowsableState System.Diagnostics.DebuggerHiddenAttribute System.Diagnostics.DebuggerNonUserCodeAttribute System.Diagnostics.DebuggerTypeProxyAttribute

System.Diagnostics.DiagnosticSource by: Microsoft

Provides Classes that allow you to decouple code logging rich (unserializable) diagnostics/telemetry (e.g. framework) from code that consumes it (e.g. tools) Commonly Used Types: System.Diagnostics.DiagnosticListener System.Diagnostics.DiagnosticSource

System.Diagnostics.EventLog by: Microsoft

Provides the System.Diagnostics.EventLog class, which allows the applications to use the Windows event log service. Commonly Used Types: System.Diagnostics.EventLog

System.Diagnostics.FileVersionInfo by: Microsoft

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

System.Diagnostics.PerformanceCounter by: Microsoft

Provides the System.Diagnostics.PerformanceCounter class, which allows access to Windows performance counters. Commonly Used Types: System.Diagnostics.PerformanceCounter

System.Diagnostics.Process by: Microsoft

Provides the System.Diagnostics.Process class, which allows interaction with local and remote processes. Commonly Used Types: System.Diagnostics.Process System.Diagnostics.ProcessModule System.Diagnostics.ProcessStartInfo System.Diagnostics.ProcessThread

System.Diagnostics.TextWriterTraceListener by: Microsoft

Provides trace listeners for directing tracing output to a text writer, such as System.IO.StreamWriter, or a stream, such as a System.IO.FileStream. Commonly Used Types: System.Diagnostics.TextWriterTraceListener System.Diagnostics.DelimitedListTraceListener

System.Diagnostics.Tools by: Microsoft

Provides attributes, such as GeneratedCodeAttribute and SuppresMessageAttribute, that are emitted or consumed by analysis tools. Commonly Used Types: System.CodeDom.Compiler.GeneratedCodeAttribute System.Diagnostics.CodeAnalysis.SuppressMessageAttribute

System.Diagnostics.TraceSource by: Microsoft

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

System.Diagnostics.Tracing by: Microsoft

Provides class that enable you to create high performance tracing events to be captured by event tracing for Windows (ETW). Commonly Used Types: System.Diagnostics.Tracing.EventSource System.Diagnostics.Tracing.EventListener System.Diagnostics.Tracing.EventLevel System.Diagnostics.Tracing.EventKeywords System.Diagnostics.Tracing.EventWrittenEventArgs System.Diagnostics.Tracing.EventAttribute System.Diagnostics.Tracing.EventSourceAttribute System.Diagnostics.Tracing.NonEventAttribute

System.DirectoryServices by: Microsoft

Provides easy access to Active Directory Domain Services. Commonly Used Types: System.DirectoryServices.DirectoryEntry System.DirectoryServices.DirectorySearcher System.DirectoryServices.ActiveDirectory.ActiveDirectorySite System.DirectoryServices.ActiveDirectory.ApplicationPartition System.DirectoryServices.ActiveDirectory.DirectoryContext System.DirectoryServices.ActiveDirectory.DirectoryServer System.DirectoryServices.ActiveDirectory.Domain System.DirectoryServices.ActiveDirectory.DomainController