TaskCanceledException 类

定义

表示一个用于告知任务取消的异常。Represents an exception used to communicate task cancellation.

public ref class TaskCanceledException : OperationCanceledException
[System.Serializable]
public class TaskCanceledException : OperationCanceledException
type TaskCanceledException = class
    inherit OperationCanceledException
Public Class TaskCanceledException
Inherits OperationCanceledException
继承
属性

构造函数

TaskCanceledException()

使用由系统提供的用于描述错误的消息初始化 TaskCanceledException 类的新实例。Initializes a new instance of the TaskCanceledException class with a system-supplied message that describes the error.

TaskCanceledException(SerializationInfo, StreamingContext)

用序列化数据初始化 TaskCanceledException 类的新实例。Initializes a new instance of the TaskCanceledException class with serialized data.

TaskCanceledException(String)

使用指定的描述错误的消息初始化 TaskCanceledException 类的新实例。Initializes a new instance of the TaskCanceledException class with a specified message that describes the error.

TaskCanceledException(String, Exception)

使用指定的错误消息和对作为此异常原因的内部异常的引用来初始化 TaskCanceledException 类的新实例。Initializes a new instance of the TaskCanceledException class with a specified error message and a reference to the inner exception that is the cause of this exception.

TaskCanceledException(String, Exception, CancellationToken)

用指定的错误消息、对导致此异常的内部异常的引用以及触发取消的 CancellationToken 初始化 TaskCanceledException 类的新实例。Initializes a new instance of the TaskCanceledException class with a specified error message, a reference to the inner exception that is the cause of this exception, and the CancellationToken that triggered the cancellation.

TaskCanceledException(Task)

使用对已取消的 TaskCanceledException 的引用初始化 Task 类的新实例。Initializes a new instance of the TaskCanceledException class with a reference to the Task that has been canceled.

属性

CancellationToken

获取与已取消的操作关联的令牌。Gets a token associated with the operation that was canceled.

(继承自 OperationCanceledException)
Data

获取提供有关异常的其他用户定义信息的键/值对集合。Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(继承自 Exception)
HelpLink

获取或设置指向与此异常关联的帮助文件链接。Gets or sets a link to the help file associated with this exception.

(继承自 Exception)
HResult

获取或设置 HRESULT(一个分配给特定异常的编码数字值)。Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(继承自 Exception)
InnerException

获取导致当前异常的 Exception 实例。Gets the Exception instance that caused the current exception.

(继承自 Exception)
Message

获取描述当前异常的消息。Gets a message that describes the current exception.

(继承自 Exception)
Source

获取或设置导致错误的应用程序或对象的名称。Gets or sets the name of the application or the object that causes the error.

(继承自 Exception)
StackTrace

获取调用堆栈上的即时框架字符串表示形式。Gets a string representation of the immediate frames on the call stack.

(继承自 Exception)
TargetSite

获取引发当前异常的方法。Gets the method that throws the current exception.

(继承自 Exception)
Task

获取与此异常关联的任务。Gets the task associated with this exception.

方法

Equals(Object)

确定指定的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)
GetBaseException()

当在派生类中重写时,返回 Exception,它是一个或多个并发的异常的根源。When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.

(继承自 Exception)
GetHashCode()

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

(继承自 Object)
GetObjectData(SerializationInfo, StreamingContext)

当在派生类中重写时,用关于异常的信息设置 SerializationInfoWhen overridden in a derived class, sets the SerializationInfo with information about the exception.

(继承自 Exception)
GetType()

获取当前实例的运行时类型。Gets the runtime type of the current instance.

(继承自 Exception)
MemberwiseClone()

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

(继承自 Object)
ToString()

创建并返回当前异常的字符串表示形式。Creates and returns a string representation of the current exception.

(继承自 Exception)

事件

SerializeObjectState

当异常被序列化用来创建包含有关该异常的徐列出数据的异常状态对象时会出现该问题。Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

(继承自 Exception)

适用于

线程安全性

属性Task是线程安全的, 可同时从多个线程使用。The Task property is thread-safe and may be used from multiple threads concurrently.

另请参阅