DevExpress.DataAccess Namespace

Contains classes that utilize the most popular approaches to access different data providers.

Assemblies: DevExpress.Data.v23.2.dll, DevExpress.DataAccess.v23.2.dll

NuGet Packages: DevExpress.Data, DevExpress.DataAccess, DevExpress.Win.PivotGrid, DevExpress.Win.TreeMap

Classes

Name	Description
CustomFilterExpressionEventArgs	Provides data for the CustomFilterExpression events.
DataComponentBase
DataConnectionBase	Serves as the base class for classes that represent a data connection.
DataProviderBase	Obsolete. Serves as the base class for classes that represent a data provider.
DataProviderBase.SelectSqlGeneratorWithAlias
DataSourceFillErrorEventArgs	Provides data for the FillError event.
DataSourceParameterBase	The base for classes that provide the data source parameter functionality.
DataSourceParameterBase.BaseEqualityComparer
DefaultConnectionStringProvider	Enables you to resolve connection strings by their names at runtime in all .NET applications.
Expression	An expression assigned to a data source parameter.
Node<T>	A base class that defines a node in a tree-like structure of objects.
ValidateCustomSqlQueryEventArgs	Provides data for the SqlDataSource.ValidateCustomSqlQuery event.

Interfaces

Name	Description
IDataComponent	When implemented by a class, provides basic functionality required by data access components.
IDataSourceProtectionService
ISecureDataConverter

Delegates

Name	Description
CustomFilterExpressionEventHandler	References a method that will handle CustomFilterExpression events.
DataSourceFillErrorEventHandler	References the method that handles the JsonDataSource.FillError event.
ValidateCustomSqlQueryEventHandler	References a method that will handle the SqlDataSource.ValidateCustomSqlQuery event.

Enums

Name	Description
DocumentLoadingBehavior	Lists the options that define whether to trust object data sources loaded in end-user applications.