Microsoft.EntityFrameworkCore Namespace

Classes

BackingFieldAttribute	Names the backing field associated with this property or navigation property.
ChangeTrackerExtensions	Extension methods for ChangeTracker.
CommentAttribute	Marks a class, property or field with a comment to be set on the corresponding database table or column.
ConventionEntityTypeExtensions	Extension methods for IConventionEntityType.
CosmosDatabaseFacadeExtensions	Extension methods for the DatabaseFacade returned from Database that can be used only with the Cosmos provider.
CosmosDbContextOptionsExtensions	Cosmos-specific extension methods for DbContextOptionsBuilder.
CosmosEntityTypeBuilderExtensions	Cosmos-specific extension methods for EntityTypeBuilder.
CosmosEntityTypeExtensions	Entity type extension methods for Cosmos metadata.
CosmosIndexBuilderExtensions	Azure Cosmos DB-specific extension methods for IndexBuilder.
CosmosIndexExtensions	Index extension methods for Azure Cosmos DB-specific metadata.
CosmosModelBuilderExtensions	Cosmos-specific extension methods for ModelBuilder.
CosmosModelExtensions	Model extension methods for Cosmos metadata.
CosmosPrimitiveCollectionBuilderExtensions	Cosmos-specific extension methods for PrimitiveCollectionBuilder.
CosmosPropertyBuilderExtensions	Cosmos-specific extension methods for PropertyBuilder.
CosmosPropertyExtensions	Property extension methods for Cosmos metadata.
CosmosQueryableExtensions	Cosmos-specific extension methods for LINQ queries.
DbContext	A DbContext instance represents a session with the database and can be used to query and save instances of your entities. DbContext is a combination of the Unit Of Work and Repository patterns.
DbContextOptions	The options to be used by a DbContext. You normally override OnConfiguring(DbContextOptionsBuilder) or use a DbContextOptionsBuilder to create instances of this class and it is not designed to be directly constructed in your application code.
DbContextOptions<TContext>	The options to be used by a DbContext. You normally override OnConfiguring(DbContextOptionsBuilder) or use a DbContextOptionsBuilder<TContext> to create instances of this class and it is not designed to be directly constructed in your application code.
DbContextOptionsBuilder	Provides a simple API surface for configuring DbContextOptions. Databases (and other extensions) typically define extension methods on this object that allow you to configure the database connection (and other options) to be used for a context.
DbContextOptionsBuilder<TContext>	Provides a simple API surface for configuring DbContextOptions<TContext>. Databases (and other extensions) typically define extension methods on this object that allow you to configure the database connection (and other options) to be used for a context.
DbFunctionAttribute	Maps a static CLR method to a database function so that the CLR method may be used in LINQ queries. By convention uses the .NET method name as name of the database function and the default schema.
DbFunctions	Provides CLR methods that get translated to database functions when used in LINQ to Entities queries. The methods on this class are accessed via Functions.
DbFunctionsExtensions	Provides CLR methods that get translated to database functions when used in LINQ to Entities queries. The methods on this class are accessed via Functions.
DbLoggerCategory	An API for getting logger categories in an Intellisense/tab-completion friendly manner.
DbLoggerCategory.ChangeTracking	Logger category for messages from change detection and tracking.
DbLoggerCategory.Database	Logger categories for messages related to database interactions.
DbLoggerCategory.Database.Command	Logger category for command execution, including SQL sent to the database.
DbLoggerCategory.Database.Connection	Logger category for messages related to connection operations.
DbLoggerCategory.Database.Transaction	Logger category for messages related to transaction operations.
DbLoggerCategory.Infrastructure	Logger category for miscellaneous messages from the Entity Framework infrastructure.
DbLoggerCategory.Migrations	Logger category messages from Migrations.
DbLoggerCategory.Model	Logger categories for messages related to model building and metadata.
DbLoggerCategory.Model.Validation	Logger category for messages from model validation.
DbLoggerCategory.Query	Logger category for messages related to queries, excluding the generated SQL, which is in the DbLoggerCategory.Database.Command category.
DbLoggerCategory.Scaffolding	Logger category for messages from scaffolding/reverse engineering.
DbLoggerCategory.Update	Logger category for messages related to SaveChanges(), excluding messages specifically relating to database interactions which are covered by the DbLoggerCategory.Database categories.
DbSet<TEntity>	A DbSet<TEntity> can be used to query and save instances of TEntity. LINQ queries against a DbSet<TEntity> will be translated into queries against the database.
DbUpdateConcurrencyException	An exception that is thrown when a concurrency violation is encountered while saving to the database. A concurrency violation occurs when an unexpected number of rows are affected during save. This is usually because the data in the database has been modified since it was loaded into memory.
DbUpdateException	An exception that is thrown when an error is encountered while saving to the database.
DeleteBehaviorAttribute	Configures the navigation property on the dependent side of a relationship to indicate how a delete operation is applied to dependent entities in a relationship when it is deleted or the relationship is severed.
EF	Static methods that are useful in application code where there is not an EF type for the method to be accessed from. For example, referencing a shadow state property in a LINQ query.
EntityFrameworkQueryableExtensions	Entity Framework LINQ related extension methods.
EntityTypeConfigurationAttribute	Specifies the configuration type for the entity type.
EntityTypeConfigurationAttribute<TConfiguration,TEntity>	Specifies the configuration type for the entity type.
EntityTypeExtensions	Entity type extension methods for IReadOnlyEntityType.
ExecutionStrategyExtensions	Extension methods for IExecutionStrategy
IndexAttribute	Specifies an index to be generated in the database.
InMemoryDatabaseFacadeExtensions	In-memory specific extension methods for Database.
InMemoryDbContextOptionsExtensions	In-memory specific extension methods for DbContextOptionsBuilder.
InMemoryEntityTypeBuilderExtensions	Extension methods for EntityTypeBuilder for the in-memory provider.
InMemoryEntityTypeExtensions	Extension methods for IReadOnlyEntityType for the in-memory provider.
KeylessAttribute	Marks a type as keyless entity.
LazyLoadingProxiesOptionsBuilder	Allows SQL Server specific configuration to be performed on DbContextOptions.
ModelBuilder	Provides a simple API surface for configuring a IMutableModel that defines the shape of your entities, the relationships between them, and how they map to the database.
ModelConfigurationBuilder	Provides a simple API surface for setting defaults and configuring conventions before they run.
ModelCreationDependencies	This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release.
MutableEntityTypeExtensions	Extension methods for IMutableEntityType.
ObservableCollectionExtensions	Extension methods for ObservableCollection<T>.
OwnedAttribute	Marks a type as owned. All references to this type will be configured as owned entity types.
PrecisionAttribute	Configures the precision of data that is allowed in this property. For example, if the property is a Decimal then this is the maximum number of digits.
PrimaryKeyAttribute	Specifies a primary key for the entity type mapped to this CLR type.
PropertyBaseExtensions	Extension methods for IReadOnlyPropertyBase.
ProxiesExtensions	Extension methods related to use of proxies with Entity Framework Core.
RelationalComplexTypeExtensions	Complex type extension methods for relational database metadata.
RelationalComplexTypePrimitiveCollectionBuilderExtensions	Relational database specific extension methods for ComplexTypePrimitiveCollectionBuilder.
RelationalComplexTypePropertyBuilderExtensions	Relational database specific extension methods for ComplexTypePropertyBuilder.
RelationalDatabaseFacadeExtensions	Extension methods for the DatabaseFacade returned from Database that can be used only with relational database providers.
RelationalDbFunctionsExtensions	Provides CLR methods that get translated to database functions when used in LINQ to Entities queries. The methods on this class are accessed via Functions.
RelationalElementTypeBuilderExtensions	Relational database specific extension methods for ElementTypeBuilder.
RelationalElementTypeExtensions	IElementType extension methods for relational database metadata.
RelationalEntityTypeBuilderExtensions	Relational database specific extension methods for EntityTypeBuilder.
RelationalEntityTypeExtensions	Entity type extension methods for relational database metadata.
RelationalForeignKeyBuilderExtensions	Relational database specific extension methods for relationship builders.
RelationalForeignKeyExtensions	Foreign key extension methods for relational database metadata.
RelationalIndexBuilderExtensions	Relational database specific extension methods for IndexBuilder.
RelationalIndexExtensions	Index extension methods for relational database metadata.
RelationalKeyBuilderExtensions	Relational database specific extension methods for KeyBuilder.
RelationalKeyExtensions	Key extension methods for relational database metadata.
RelationalModelBuilderExtensions	Relational database specific extension methods for ModelBuilder.
RelationalModelExtensions	Relational-specific model extension methods.
RelationalOwnedNavigationBuilderExtensions	Relational database specific extension methods for OwnedNavigationBuilder.
RelationalPrimitiveCollectionBuilderExtensions	Relational database specific extension methods for PrimitiveCollectionBuilder.
RelationalPropertiesConfigurationBuilderExtensions	Relational database specific extension methods for PropertiesConfigurationBuilder.
RelationalPropertyBuilderExtensions	Relational database specific extension methods for PropertyBuilder.
RelationalPropertyExtensions	Property extension methods for relational database metadata.
RelationalQueryableExtensions	Relational database specific extension methods for LINQ queries.
RelationalTriggerBuilderExtensions	Relational database specific extension methods for TriggerBuilder.
RelationalTriggerExtensions	Trigger extension methods for relational database metadata.
RelationalTypeBaseExtensions	Type extension methods for relational database metadata.
RelationalTypeMappingConfigurationBuilderExtensions	Relational database specific extension methods for TypeMappingConfigurationBuilder.
SaveChangesEventArgs	Base event arguments for the DbContext.SaveChanges and DbContext.SaveChangesAsync events.
SaveChangesFailedEventArgs	Event arguments for the SaveChangesFailed event.
SavedChangesEventArgs	Event arguments for the SavedChanges event.
SavingChangesEventArgs	Event arguments for the SavingChanges event.
ScaffoldingModelExtensions	Design-time model extensions.
SqliteComplexTypePropertyBuilderExtensions	SQLite-specific extension methods for ComplexTypePropertyBuilder.
SqliteDatabaseFacadeExtensions	SQLite specific extension methods for Database.
SqliteDbContextOptionsBuilderExtensions	SQLite specific extension methods for DbContextOptionsBuilder.
SqliteDbFunctionsExtensions	Contains extension methods on DbFunctions for the Microsoft.EntityFrameworkCore.Sqlite provider.
SqliteEntityTypeBuilderExtensions	Entity type builder extension methods for Sqlite-specific metadata.
SqliteEntityTypeExtensions	Entity type extension methods for Sqlite-specific metadata.
SqliteEntityTypeMappingFragmentExtensions	SQLite specific extension methods for IReadOnlyEntityTypeMappingFragment.
SqliteNetTopologySuiteDbContextOptionsBuilderExtensions	NetTopologySuite specific extension methods for SqliteDbContextOptionsBuilder.
SqlitePropertyBuilderExtensions	SQLite-specific extension methods for PropertyBuilder.
SqlitePropertyExtensions	Extension methods for IProperty for SQLite metadata.
SqliteTableBuilderExtensions	Sqlite-specific extension methods for TableBuilder.
SqliteTableExtensions	SQLite specific extension methods for ITable.
SqlServerComplexTypePrimitiveCollectionBuilderExtensions	SQL Server specific extension methods for ComplexTypePrimitiveCollectionBuilder.
SqlServerComplexTypePropertyBuilderExtensions	SQL Server specific extension methods for ComplexTypePropertyBuilder.
SqlServerDatabaseFacadeExtensions	SQL Server specific extension methods for Database.
SqlServerDbContextOptionsExtensions	SQL Server specific extension methods for DbContextOptionsBuilder.
SqlServerDbFunctionsExtensions	Provides CLR methods that get translated to database functions when used in LINQ to Entities queries. The methods on this class are accessed via Functions.
SqlServerDbSetExtensions	Sql Server database specific extension methods for LINQ queries rooted in DbSet.
SqlServerEntityTypeBuilderExtensions	SQL Server specific extension methods for EntityTypeBuilder.
SqlServerEntityTypeExtensions	Entity type extension methods for SQL Server-specific metadata.
SqlServerEntityTypeMappingFragmentExtensions	SQL Server specific extension methods for IReadOnlyEntityTypeMappingFragment.
SqlServerIndexBuilderExtensions	SQL Server specific extension methods for IndexBuilder.
SqlServerIndexExtensions	Index extension methods for SQL Server-specific metadata.
SqlServerKeyBuilderExtensions	SQL Server specific extension methods for KeyBuilder.
SqlServerKeyExtensions	Key extension methods for SQL Server-specific metadata.
SqlServerModelBuilderExtensions	SQL Server specific extension methods for ModelBuilder.
SqlServerModelExtensions	Model extension methods for SQL Server-specific metadata.
SqlServerPrimitiveCollectionBuilderExtensions	SQL Server specific extension methods for PrimitiveCollectionBuilder.
SqlServerPropertyBuilderExtensions	SQL Server specific extension methods for PropertyBuilder.
SqlServerPropertyExtensions	Property extension methods for SQL Server-specific metadata.
SqlServerRetryingExecutionStrategy	An IExecutionStrategy implementation for retrying failed executions on SQL Server.
SqlServerTableBuilderExtensions	SQL Server specific extension methods for TableBuilder.
SqlServerTableExtensions	SQL Server specific extension methods for ITable.
TableExpressionExtensions	Type extension methods for TableExpressionBase and related types.
UnicodeAttribute	Configures the property as capable of persisting unicode characters.

Structs

CosmosPage<T>	A single page of results returned from a user query; can be used to paginate through long result-sets. Returned by ToPageAsync<TSource>(IQueryable<TSource>, Int32, String, Nullable<Int32>, CancellationToken).
DbContextId	A unique identifier for the context instance and pool lease, if any.

Interfaces

IDbContextFactory<TContext>	Defines a factory for creating DbContext instances.
IEntityTypeConfiguration<TEntity>	Allows configuration for an entity type to be factored into a separate class, rather than in-line in OnModelCreating(ModelBuilder). Implement this interface, applying configuration for the entity in the Configure(EntityTypeBuilder<TEntity>) method, and then apply the configuration to the model using ApplyConfiguration<TEntity>(IEntityTypeConfiguration<TEntity>) in OnModelCreating(ModelBuilder).

Enums

AutoTransactionBehavior	Indicates whether a transaction will be created automatically by SaveChanges() if a user transaction wasn't created via 'BeginTransaction' or provided via 'UseTransaction'.
ChangeTrackingStrategy	Indicates how the context detects changes to properties for an instance of the entity type.
DataCompressionType	Indicates type of data compression used on a index.
DeleteBehavior	Indicates how a delete operation is applied to dependent entities in a relationship when the principal is deleted or the relationship is severed.
EntityState	The state in which an entity is being tracked by a context.
PropertyAccessMode	Pass a value from this enum to UsePropertyAccessMode(PropertyAccessMode), UsePropertyAccessMode(PropertyAccessMode), or UsePropertyAccessMode(PropertyAccessMode) to change whether the property or backing field will be used when reading and writing to a property or field.
QuerySplittingBehavior	Indicates how the related collections in a query should be loaded from database.
QueryTrackingBehavior	Indicates how the results of a query are tracked by the ChangeTracker.
WarningBehavior	The runtime behavior of warnings generated by Entity Framework