QueryContext Class

Reference

Definition

Namespace:: Microsoft.EntityFrameworkCore.Query

Assembly:: Microsoft.EntityFrameworkCore.dll

Package:: Microsoft.EntityFrameworkCore v1.0.6

Package:: Microsoft.EntityFrameworkCore v1.1.6

Package:: Microsoft.EntityFrameworkCore v2.0.3

Package:: Microsoft.EntityFrameworkCore v2.1.11

Package:: Microsoft.EntityFrameworkCore v2.2.6

Package:: Microsoft.EntityFrameworkCore v3.0.0

Package:: Microsoft.EntityFrameworkCore v3.1.0

Package:: Microsoft.EntityFrameworkCore v5.0.0

Package:: Microsoft.EntityFrameworkCore v6.0.0

Package:: Microsoft.EntityFrameworkCore v7.0.0

Package:: Microsoft.EntityFrameworkCore v8.0.0

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

The principal data structure used by a compiled query during execution.

This type is typically used by database providers (and other extensions). It is generally not used in application code.

public class QueryContext

public class QueryContext : IDisposable, Microsoft.EntityFrameworkCore.Query.Internal.IParameterValues

public abstract class QueryContext : Microsoft.EntityFrameworkCore.Query.IParameterValues

public abstract class QueryContext : Microsoft.EntityFrameworkCore.Query.Internal.IParameterValues

type QueryContext = class

type QueryContext = class
    interface IDisposable
    interface IParameterValues

type QueryContext = class
    interface IParameterValues

Public Class QueryContext

Public Class QueryContext
Implements IDisposable, IParameterValues

Public MustInherit Class QueryContext
Implements IParameterValues

Inheritance: Object
QueryContext

Derived: Microsoft.EntityFrameworkCore.Query.RelationalQueryContext

Implements: Microsoft.EntityFrameworkCore.Query.Internal.IParameterValues IDisposable IParameterValues

Remarks

See Implementation of database providers and extensions and How EF Core queries work for more information and examples.

Constructors

QueryContext(Func<IQueryBuffer>, IStateManager, IConcurrencyDetector)	This API supports the Entity Framework Core infrastructure and is not intended to be used directly from your code. This API may change or be removed in future releases.
QueryContext(Func<IQueryBuffer>, LazyRef<IStateManager>, IConcurrencyDetector)	This API supports the Entity Framework Core infrastructure and is not intended to be used directly from your code. This API may change or be removed in future releases.
QueryContext(QueryContextDependencies)	Creates a new QueryContext instance. This type is typically used by database providers (and other extensions). It is generally not used in application code.
QueryContext(QueryContextDependencies, Func<IQueryBuffer>)	This API supports the Entity Framework Core infrastructure and is not intended to be used directly from your code. This API may change or be removed in future releases.

Properties

CancellationToken	The cancellation token to use while executing the query.
CommandLogger	The command logger to use while executing the query.
ConcurrencyDetector	The concurrency detector to use while executing the query.
Context	The current DbContext in using while executing the query.
Dependencies	Dependencies for this service.
ExceptionDetector	The exception detector to use while executing the query.
ExecutionStrategy	The execution strategy to use while executing the query.
ExecutionStrategyFactory	Obsolete. The execution strategy factory to use while executing the query.
ParameterValues	The parameter values to use while executing the query.
QueryBuffer	The query buffer.
QueryLogger	The query logger to use while executing the query.
QueryProvider	Obsolete. The query provider.
StateManager	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.

Methods

AddParameter(String, Object)	Adds a parameter to ParameterValues for this query.
BeginTrackingQuery()	Notify the state manager that a tracking query is starting.
Dispose()	Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
InitializeStateManager(Boolean)	Initializes the Microsoft.EntityFrameworkCore.ChangeTracking.Internal.IStateManager to be used with this QueryContext.
RemoveParameter(String)	Removes a parameter by name.
SetNavigationIsLoaded(Object, INavigation)	Sets the navigation as loaded.
SetNavigationIsLoaded(Object, INavigationBase)	Sets the navigation for given entity as loaded.
SetParameter(String, Object)	Sets a parameter value.
StartTracking(IEntityType, Object, ValueBuffer)	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.
StartTracking(Object, EntityTrackingInfo)	Start tracking an entity.
TryGetEntry(IKey, Object[], Boolean, Boolean)	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.

Applies to