RelationalConnection.BeginTransactionAsync 方法

定义

命名空间:

Microsoft.EntityFrameworkCore.Storage

程序集:

Microsoft.EntityFrameworkCore.Relational.dll

包:

Microsoft.EntityFrameworkCore.Relational v9.0.0

重载

BeginTransactionAsync(CancellationToken)	异步启动新事务。
BeginTransactionAsync(IsolationLevel, CancellationToken)	异步启动新事务。

BeginTransactionAsync(CancellationToken)

Source:

RelationalConnection.cs

异步启动新事务。

public virtual System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.IDbContextTransaction> BeginTransactionAsync (System.Threading.CancellationToken cancellationToken = default);

abstract member BeginTransactionAsync : System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.IDbContextTransaction>
override this.BeginTransactionAsync : System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.IDbContextTransaction>

Public Overridable Function BeginTransactionAsync (Optional cancellationToken As CancellationToken = Nothing) As Task(Of IDbContextTransaction)

参数

cancellationToken

CancellationToken

等待 CancellationToken 任务完成时要观察的 。

返回

Task<IDbContextTransaction>

表示异步操作的任务。 任务结果包含新创建的事务。

实现

BeginTransactionAsync(CancellationToken)

例外

OperationCanceledException

如果已取消 CancellationToken。

BeginTransactionAsync(IsolationLevel, CancellationToken)

Source:

RelationalConnection.cs

异步启动新事务。

public virtual System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.IDbContextTransaction> BeginTransactionAsync (System.Data.IsolationLevel isolationLevel, System.Threading.CancellationToken cancellationToken = default);

abstract member BeginTransactionAsync : System.Data.IsolationLevel * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.IDbContextTransaction>
override this.BeginTransactionAsync : System.Data.IsolationLevel * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.IDbContextTransaction>

Public Overridable Function BeginTransactionAsync (isolationLevel As IsolationLevel, Optional cancellationToken As CancellationToken = Nothing) As Task(Of IDbContextTransaction)

参数

isolationLevel

IsolationLevel

要用于该事务的隔离级别。

cancellationToken

CancellationToken

等待 CancellationToken 任务完成时要观察的 。

返回

Task<IDbContextTransaction>

表示异步操作的任务。 任务结果包含新创建的事务。

实现

BeginTransactionAsync(IsolationLevel, CancellationToken)

例外

OperationCanceledException

如果已取消 CancellationToken。