IOException IOException IOException IOException Class

定义

发生 I/O 错误时引发的异常。The exception that is thrown when an I/O error occurs.

public ref class IOException : SystemException
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class IOException : SystemException
type IOException = class
    inherit SystemException
Public Class IOException
Inherits SystemException
继承
派生
属性

示例

此代码示例是为提供一个更大示例的一部分FileStream.Lock方法。This code example is part of a larger example provided for the FileStream.Lock method.

// Catch the IOException generated if the 
// specified part of the file is locked.
catch ( IOException^ e ) 
{
   Console::WriteLine( "{0}: The write operation could not "
   "be performed because the specified "
   "part of the file is locked.", e->GetType()->Name );
}


// Catch the IOException generated if the 
// specified part of the file is locked.
catch(IOException e)
{
    Console.WriteLine(
        "{0}: The write operation could not " +
        "be performed because the specified " +
        "part of the file is locked.", 
        e.GetType().Name);
}
' Catch the IOException generated if the 
' specified part of the file is locked.
Catch ex As IOException
    Console.WriteLine( _
        "{0}: The write operation could " & _
        "not be performed because the " & _
        "specified part of the file is " & _
        "locked.", ex.GetType().Name)
End Try

注解

IOException 是在使用流、文件和目录访问信息时引发的异常的基类。IOException is the base class for exceptions thrown while accessing information using streams, files and directories.

基类库包括以下类型,其中每个作为派生的类的IOException:The Base Class Library includes the following types, each of which is a derived class of IOException :

根据需要,而不是 IOException 使用这些类型。Where appropriate, use these types instead of IOException.

IOException 使用 HRESULT COR_E_IO 其值 0x80131620。IOException uses the HRESULT COR_E_IO which has the value 0x80131620.

构造函数

IOException() IOException() IOException() IOException()

初始化 IOException 类的新实例,其中将消息字符串设置为空字符串 (""),将其 HRESULT 设置为 COR_E_IO,并且将其内部异常设置为空引用。Initializes a new instance of the IOException class with its message string set to the empty string (""), its HRESULT set to COR_E_IO, and its inner exception set to a null reference.

IOException(SerializationInfo, StreamingContext) IOException(SerializationInfo, StreamingContext) IOException(SerializationInfo, StreamingContext) IOException(SerializationInfo, StreamingContext)

用指定的序列化和上下文信息初始化 IOException 类的新实例。Initializes a new instance of the IOException class with the specified serialization and context information.

IOException(String) IOException(String) IOException(String) IOException(String)

初始化 IOException 类的新实例,其中将消息字符串设置为 message,将其 HRESULT 设置为 COR_E_IO,并且将其内部异常设置为 nullInitializes a new instance of the IOException class with its message string set to message, its HRESULT set to COR_E_IO, and its inner exception set to null.

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

IOException(String, Int32) IOException(String, Int32) IOException(String, Int32) IOException(String, Int32)

初始化 IOException 类的新实例,将其消息字符串设置为 message 并将其 HRESULT 设置为用户定义的。Initializes a new instance of the IOException class with its message string set to message and its HRESULT user-defined.

属性

Data Data Data 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.

(Inherited from Exception)
HelpLink HelpLink HelpLink 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 HResult HResult 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 InnerException InnerException 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 Message Message Message

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

(Inherited from Exception)
Source Source Source 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 StackTrace StackTrace 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 TargetSite TargetSite TargetSite

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

(Inherited from Exception)

方法

Equals(Object) Equals(Object) Equals(Object) 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() GetBaseException() GetBaseException() 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.

(Inherited from Exception)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

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

(Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) 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() GetType() GetType() 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() MemberwiseClone() MemberwiseClone() MemberwiseClone()

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

(Inherited from Object)
ToString() ToString() ToString() 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)

事件

SerializeObjectState SerializeObjectState SerializeObjectState 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)

适用于

另请参阅