DbException 类

定义

代表数据源引发的所有异常的基类。The base class for all exceptions thrown on behalf of the data source.

public ref class DbException abstract : Exception
public ref class DbException abstract : System::Runtime::InteropServices::ExternalException
public abstract class DbException : Exception
public abstract class DbException : System.Runtime.InteropServices.ExternalException
[System.Serializable]
public abstract class DbException : System.Runtime.InteropServices.ExternalException
type DbException = class
    inherit Exception
type DbException = class
    inherit ExternalException
[<System.Serializable>]
type DbException = class
    inherit ExternalException
Public MustInherit Class DbException
Inherits Exception
Public MustInherit Class DbException
Inherits ExternalException
继承
DbException
继承
派生
属性

注解

DbException类是一个抽象类,用作特定于提供程序的异常类实现的基类。The DbException class is an abstract class used as the base class for provider-specific exception class implementations.

有关处理 .NET Framework 数据提供程序的异常的常规信息,请参阅 SqlExceptionFor general information about handling exceptions for a .NET Framework data provider, see SqlException.

构造函数

DbException()

初始化 DbException 类的新实例。Initializes a new instance of the DbException class.

DbException(SerializationInfo, StreamingContext)

用指定的序列化信息和上下文初始化 DbException 类的新实例。Initializes a new instance of the DbException class with the specified serialization information and context.

DbException(String)

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

DbException(String, Exception)

使用指定的错误消息以及对导致此异常的内部异常的引用,初始化 DbException 类的新实例。Initializes a new instance of the DbException class with the specified error message and a reference to the inner exception that is the cause of this exception.

DbException(String, Int32)

使用指定的错误消息和错误代码初始化 DbException 类的新实例。Initializes a new instance of the DbException class with the specified error message and error code.

属性

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.

(继承自 Exception)
ErrorCode

获取错误的 HRESULTGets the HRESULT of the error.

(继承自 ExternalException)
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)
IsTransient

指示此 DbException 表示的错误是否可能是暂时性错误,即重试触发操作是否可以在不进行任何其他更改的情况下成功。Indicates whether the error represented by this DbException could be a transient error, i.e. if retrying the triggering operation may succeed without any other change.

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)
SqlState

对于支持它的数据库提供程序,包含标准的 SQL 5 字符返回代码,该代码指示数据库操作是成功还是失败。For database providers which support it, contains a standard SQL 5-character return code indicating the success or failure of the database operation. 前 2 个字符表示返回代码的 (例如错误、成功),而最后 3 个字符表示 子类,允许以数据库可移植的方式检测错误情况。The first 2 characters represent the class of the return code (e.g. error, success), while the last 3 characters represent the subclass, allowing detection of error scenarios in a database-portable way.

对于不支持它的数据库提供程序,或对于不适用的错误方案,包含 nullFor database providers which don't support it, or for inapplicable error scenarios, contains null.

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)

方法

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)
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.

(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)
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.

(继承自 ExternalException)

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