System.Data Namespace

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The System.Data namespace consists mostly of the classes that constitute the ActiveX^® Data Objects architecture in the .NET Framework ( ADO.NET ). ADO.NET provides the programming interfaces for building data-driven Web and Windows applications.

This namespace includes the centerpiece of the ADO.NET architecture, the DataSet, which represents a relational database in memory.

Constraint DataTableClearEventArgs InvalidExpressionException
ConstraintCollection DataTableClearEventHandler MergeFailedEventArgs
ConstraintException DataTableCollection MergeFailedEventHandler
DataColumn DataTableNewRowEventArgs MissingPrimaryKeyException
DataColumnChangeEventArgs DataTableNewRowEventHandler NoNullAllowedException
DataColumnChangeEventHandler DataTableReader OperationAbortedException
DataColumnCollection DataView PropertyCollection
DataException DataViewManager ReadOnlyException
DataRelation DataViewSetting RowNotInTableException
DataRelationCollection DataViewSettingCollection StateChangeEventArgs
DataRow DBConcurrencyException StateChangeEventHandler
DataRowBuilder DeletedRowInaccessibleException StatementCompletedEventArgs
DataRowChangeEventArgs DuplicateNameException StatementCompletedEventHandler
DataRowChangeEventHandler EvaluateException StrongTypingException
DataRowCollection FillErrorEventArgs SyntaxErrorException
DataRowView FillErrorEventHandler TypedDataSetGenerator
DataSet ForeignKeyConstraint TypedDataSetGeneratorException
DataSetSchemaImporterExtension InRowChangingEventException UniqueConstraint
DataSysDescriptionAttribute InternalDataCollectionBase VersionNotFoundException
DataTable InvalidConstraintException

AcceptRejectRule DbType SchemaSerializationMode
CommandBehavior IsolationLevel SchemaType
CommandType KeyRestrictionBehavior SerializationFormat
ConflictOption LoadOption SqlDbType
ConnectionState MappingType StatementType
DataRowAction MissingMappingAction UpdateRowSource
DataRowState MissingSchemaAction UpdateStatus
DataRowVersion ParameterDirection XmlReadMode
DataSetDateTime PropertyAttributes XmlWriteMode
DataViewRowState Rule

IColumnMapping IDataReader IDbDataParameter
IColumnMappingCollection IDataRecord IDbTransaction
IDataAdapter IDbCommand ITableMapping
IDataParameter IDbConnection ITableMappingCollection
IDataParameterCollection IDbDataAdapter

For further information on how this namespace can help you, see Accessing Data with ADO.NET.

System.Data.Common System.Data.OleDb System.Data.SqlClient

Friday, January 10, 2025

System.Data Namespace

Classes in System.Data

Enums in System.Data

Interfaces in System.Data

See Also