DbTransaction 类

定义

定义数据库事务的核心行为,并为数据库专用事务提供基类。Defines the core behavior of database transactions and provides a base class for database-specific transactions.

public ref class DbTransaction abstract : IDisposable
public ref class DbTransaction abstract : MarshalByRefObject, IAsyncDisposable, IDisposable, System::Data::IDbTransaction
public ref class DbTransaction abstract : IDisposable, System::Data::IDbTransaction
public ref class DbTransaction abstract : MarshalByRefObject, IDisposable, System::Data::IDbTransaction
public ref class DbTransaction abstract : MarshalByRefObject, System::Data::IDbTransaction
public ref class DbTransaction abstract : MarshalByRefObject, IAsyncDisposable, System::Data::IDbTransaction
public abstract class DbTransaction : IDisposable
public abstract class DbTransaction : MarshalByRefObject, IAsyncDisposable, IDisposable, System.Data.IDbTransaction
public abstract class DbTransaction : IDisposable, System.Data.IDbTransaction
public abstract class DbTransaction : MarshalByRefObject, IDisposable, System.Data.IDbTransaction
public abstract class DbTransaction : MarshalByRefObject, System.Data.IDbTransaction
public abstract class DbTransaction : MarshalByRefObject, IAsyncDisposable, System.Data.IDbTransaction
type DbTransaction = class
    interface IDisposable
type DbTransaction = class
    inherit MarshalByRefObject
    interface IDbTransaction
    interface IDisposable
    interface IAsyncDisposable
type DbTransaction = class
    interface IDbTransaction
    interface IDisposable
type DbTransaction = class
    inherit MarshalByRefObject
    interface IDbTransaction
    interface IDisposable
Public MustInherit Class DbTransaction
Implements IDisposable
Public MustInherit Class DbTransaction
Inherits MarshalByRefObject
Implements IAsyncDisposable, IDbTransaction, IDisposable
Public MustInherit Class DbTransaction
Implements IDbTransaction, IDisposable
Public MustInherit Class DbTransaction
Inherits MarshalByRefObject
Implements IDbTransaction, IDisposable
Public MustInherit Class DbTransaction
Inherits MarshalByRefObject
Implements IDbTransaction
Public MustInherit Class DbTransaction
Inherits MarshalByRefObject
Implements IAsyncDisposable, IDbTransaction
继承
DbTransaction
继承
DbTransaction
派生
实现

构造函数

DbTransaction()

初始化新的 DbTransaction 对象。Initializes a new DbTransaction object.

属性

Connection

指定与该事务关联的 DbConnection 对象。Specifies the DbConnection object associated with the transaction.

DbConnection

在派生类中重写时,获取与事务关联的 DbConnection 对象。When overridden in a derived class, gets the DbConnection object associated with the transaction.

IsolationLevel

在派生类中重写时,获取此事务的隔离级别。When overridden in a derived class, gets the isolation level for this transaction.

SupportsSavepoints

获取一个值,该值指示此 DbTransaction 实例是否支持数据库保存点。Gets a value that indicates whether this DbTransaction instance supports database savepoints. 如果为 false,则 SaveAsync(String, CancellationToken)RollbackAsync(String, CancellationToken)ReleaseAsync(String, CancellationToken) 方法及其同步对应项应引发 NotSupportedExceptionIf false, the methods SaveAsync(String, CancellationToken), RollbackAsync(String, CancellationToken) and ReleaseAsync(String, CancellationToken) as well as their synchronous counterparts are expected to throw NotSupportedException.

方法

Commit()

在派生类中重写时,提交数据库事务。When overridden in a derived class, commits the database transaction.

CommitAsync(CancellationToken)

异步提交数据库事务。Asynchronously commits the database transaction.

CreateObjRef(Type)

创建一个对象,该对象包含生成用于与远程对象进行通信的代理所需的全部相关信息。Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.

(继承自 MarshalByRefObject)
Dispose()

释放 DbTransaction 使用的非托管资源。Releases the unmanaged resources used by the DbTransaction.

Dispose(Boolean)

释放由 DbTransaction 占用的非托管资源,还可以另外再释放托管资源。Releases the unmanaged resources used by the DbTransaction and optionally releases the managed resources.

DisposeAsync()

异步处置事务对象。Asynchronously diposes the transaction object.

Equals(Object)

确定指定对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(继承自 Object)
GetHashCode()

作为默认哈希函数。Serves as the default hash function.

(继承自 Object)
GetLifetimeService()

检索控制此实例的生存期策略的当前生存期服务对象。Retrieves the current lifetime service object that controls the lifetime policy for this instance.

(继承自 MarshalByRefObject)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(继承自 Object)
InitializeLifetimeService()

获取生存期服务对象来控制此实例的生存期策略。Obtains a lifetime service object to control the lifetime policy for this instance.

(继承自 MarshalByRefObject)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
MemberwiseClone(Boolean)

创建当前 MarshalByRefObject 对象的浅表副本。Creates a shallow copy of the current MarshalByRefObject object.

(继承自 MarshalByRefObject)
Release(String)

销毁先前在当前事务中定义的保存点。Destroys a savepoint previously defined in the current transaction. 这允许系统在事务结束之前回收一些资源。This allows the system to reclaim some resources before the transaction ends.

ReleaseAsync(String, CancellationToken)

销毁先前在当前事务中定义的保存点。Destroys a savepoint previously defined in the current transaction. 这允许系统在事务结束之前回收一些资源。This allows the system to reclaim some resources before the transaction ends.

Rollback()

在派生类中重写时,从挂起状态回滚事务。When overridden in a derived class, rolls back a transaction from a pending state.

Rollback(String)

回滚在建立指定保存点后执行的所有命令。Rolls back all commands that were executed after the specified savepoint was established.

RollbackAsync(CancellationToken)

从挂起状态异步回滚事务。Asynchronously rolls back a transaction from a pending state.

RollbackAsync(String, CancellationToken)

回滚在建立指定保存点后执行的所有命令。Rolls back all commands that were executed after the specified savepoint was established.

Save(String)

在事务中创建保存点。Creates a savepoint in the transaction. 这样,在建立保存点后执行的所有命令都将被回滚,并将事务状态还原到保存点时的状态。This allows all commands that are executed after the savepoint was established to be rolled back, restoring the transaction state to what it was at the time of the savepoint.

SaveAsync(String, CancellationToken)

在事务中创建保存点。Creates a savepoint in the transaction. 这样,在建立保存点后执行的所有命令都将被回滚,并将事务状态还原到保存点时的状态。This allows all commands that are executed after the savepoint was established to be rolled back, restoring the transaction state to what it was at the time of the savepoint.

ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(继承自 Object)

显式接口实现

IDbTransaction.Connection

获取与事务关联的 DbConnection 对象,或空引用(如果该事务不再有效)。Gets the DbConnection object associated with the transaction, or a null reference if the transaction is no longer valid.

扩展方法

ConfigureAwait(IAsyncDisposable, Boolean)

配置如何执行从异步可处置项返回的任务的等待。Configures how awaits on the tasks returned from an async disposable are performed.

适用于

另请参阅