DirectoryNotFoundException 类

定义

当找不到文件或目录的一部分时所引发的异常。The exception that is thrown when part of a file or directory cannot be found.

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

示例

下面的示例演示如何从中DirectoryNotFoundException强制和恢复。The following example shows how to force and recover from a DirectoryNotFoundException.

using System;
using System.IO;

class Program
{

    static void Main(string[] args)
    {
        try
        {

            //  Specify a directory name that does not exist for this demo.
            string dir = @"c:\78fe9lk";

            // If this directory does not exist, a DirectoryNotFoundException is thrown
            // when attempting to set the current directory.
            Directory.SetCurrentDirectory(dir);
        }
        catch (DirectoryNotFoundException dirEx)
        {
            // Let the user know that the directory did not exist.
            Console.WriteLine("Directory not found: " + dirEx.Message);
        }
    }
}
Imports System.IO

Module Module1
    Sub Main()
        Try

            ' Specify a directory name that does not exist for this demo.
            Dim dir As String = "c:\78fe9lk"

            ' If this directory does not exist, a DirectoryNotFoundException is thrown
            ' when attempting to set the current directory.
            Directory.SetCurrentDirectory(dir)

        Catch ex As System.IO.DirectoryNotFoundException

            ' Let the user know that the directory did not exist.
            Console.WriteLine("Directory not found: " + ex.Message)
        End Try
    End Sub
End Module

注解

DirectoryNotFoundException使用 COR_E_DIRECTORYNOTFOUND 值为0x80070003 的 HRESULT。DirectoryNotFoundException uses the HRESULT COR_E_DIRECTORYNOTFOUND which has the value 0x80070003. 请注意, 当 COM 互操作程序看到具有值0x80030003 的 HRESULT STG_E_PATHNOTFOUND 时, 也会引发。DirectoryNotFoundExceptionNote that DirectoryNotFoundException is also thrown when COM interop programs see the HRESULT STG_E_PATHNOTFOUND, which has the value 0x80030003.

如果你的代码PathDiscovery没有权限, 则此异常的错误消息可能只包含文件或目录名称, 而不是完全限定的路径。If your code does not have PathDiscovery permission, the error message for this exception may only contain file or directory names instead of fully qualified paths.

构造函数

DirectoryNotFoundException()

初始化 DirectoryNotFoundException 类的新实例,使其消息字符串设置为系统提供的消息,其 HRESULT 设置为 COR_E_DIRECTORYNOTFOUND。Initializes a new instance of the DirectoryNotFoundException class with its message string set to a system-supplied message and its HRESULT set to COR_E_DIRECTORYNOTFOUND.

DirectoryNotFoundException(SerializationInfo, StreamingContext)

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

DirectoryNotFoundException(String)

初始化 DirectoryNotFoundException 类的新实例,使其消息字符串设置为 message,其 HRESULT 设置为 COR_E_DIRECTORYNOTFOUND。Initializes a new instance of the DirectoryNotFoundException class with its message string set to message and its HRESULT set to COR_E_DIRECTORYNOTFOUND.

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

属性

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)

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()

用作默认哈希函数。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

另请参阅