ExternalException Class

Definition

所有 COM 互操作 异常和结构化异常处理 (SEH) 异常的异常基类型。The base exception type for all COM interop exceptions and structured exception handling (SEH) exceptions.

public ref class ExternalException : SystemException
public class ExternalException : SystemException
[System.Serializable]
public class ExternalException : SystemException
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class ExternalException : SystemException
type ExternalException = class
    inherit SystemException
Public Class ExternalException
Inherits SystemException
Inheritance
ExternalException
Derived
Attributes

Remarks

为了增强旧系统和公共语言运行时之间的互操作性,ErrorCode 属性存储一个用于标识错误的整数值(HRESULT)。To enhance interoperability between legacy systems and the common language runtime, the ErrorCode property stores an integer value (HRESULT) that identifies the error. 用户定义的异常绝不会从 ExternalException派生,并且用户代码永远不会引发 ExternalExceptionUser defined exceptions should never derive from ExternalException, and an ExternalException should never be thrown by user code. 改为使用派生自 ExternalException 的特定异常。Use the specific exceptions that derive from ExternalException instead.

ExternalException 使用值为0x80004005 的 HRESULT E_FAIL。ExternalException uses the HRESULT E_FAIL which has the value 0x80004005.

ExternalException 使用默认的 Equals 实现,该实现支持引用相等性。ExternalException uses the default Equals implementation, which supports reference equality.

有关 ExternalException实例的初始值列表,请参见 ExternalException 构造函数。For a list of initial values for an instance of ExternalException, see the ExternalException constructors.

Constructors

ExternalException()

使用默认属性初始化 ExternalException 类的新实例。Initializes a new instance of the ExternalException class with default properties.

ExternalException(SerializationInfo, StreamingContext)

从序列化数据初始化 ExternalException 类的新实例。Initializes a new instance of the ExternalException class from serialization data.

ExternalException(String)

用指定的错误消息初始化 ExternalException 类的新实例。Initializes a new instance of the ExternalException class with a specified error message.

ExternalException(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 ExternalException 类的新实例。Initializes a new instance of the ExternalException class with a specified error message and a reference to the inner exception that is the cause of this exception.

ExternalException(String, Int32)

使用指定错误信息和错误的 HRESULT 初始化 ExternalException 类的新实例。Initializes a new instance of the ExternalException class with a specified error message and the HRESULT of the error.

Properties

Data

获取键/值对的集合,这些键/值对提供有关该异常的其他用户定义信息。Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(Inherited from Exception)
ErrorCode

获取错误的 HRESULTGets the HRESULT of the error.

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.

(Inherited from 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.

(Inherited from Exception)
InnerException

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

(Inherited from Exception)
Message

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

(Inherited from 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.

(Inherited from 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.

(Inherited from Exception)
TargetSite

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

(Inherited from Exception)

Methods

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.

(Inherited from 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本原因。When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.

(Inherited from Exception)
GetHashCode()

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

(Inherited from 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.

(Inherited from Exception)
GetType()

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

(Inherited from Exception)
MemberwiseClone()

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

(Inherited from Object)
ToString()

返回一个字符串,该字符串包含错误的 HRESULT。Returns a string that contains the HRESULT of the error.

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.

(Inherited from Exception)

Events

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.

(Inherited from Exception)

Applies to

See also