TypeAccessException 类


当方法试图使用它无权访问的类型时引发的异常。The exception that is thrown when a method attempts to use a type that it does not have access to.

public ref class TypeAccessException : TypeLoadException
public class TypeAccessException : TypeLoadException
type TypeAccessException = class
    inherit TypeLoadException
Public Class TypeAccessException
Inherits TypeLoadException


当方法尝试将对象强制转换为无法从方法访问的类型时,将引发 TypeAccessExceptionTypeAccessException is thrown when a method attempts to cast an object to a type that is not accessible from the method. 例如,匿名托管的动态方法无法访问安全关键类型,因为该方法是透明的。For example, an anonymously hosted dynamic method cannot access a security-critical type because the method is transparent. 如果方法包含将对象强制转换为安全关键类型的 OpCodes.Castclass 指令,或包含将安全关键类型作为其类型参数之一的泛型类型,则 TypeAccessException 由 JIT 编译器引发。If the method contains a OpCodes.Castclass instruction that casts an object to a security-critical type, or to a generic type that has a security-critical type as one of its type parameters, TypeAccessException is thrown by the JIT compiler.

同样,对于使用来自其他程序集的内部类型的动态方法,会引发 TypeAccessExceptionSimilarly, TypeAccessException is thrown for a dynamic method that uses an internal type from another assembly. 方法可能无法访问其包含类型、其返回类型或它的参数类型之一。A method might not have access to its containing type, its return type, or one of its parameter types.

使用 .NET Native.NET Native 工具链编译的应用可能会在运行时引发异常。Apps compiled by using the .NET Native.NET Native tool chain may throw a exception at runtime. 是从 TypeAccessException派生的仅限内部的异常类型。is an internal-only exception type derived from TypeAccessException. 此异常表示在运行时不存在成功执行应用所需的元数据。The exception indicates that metadata needed for the successful execution of an app is not present at runtime. 不应使用 try/catch 块来处理异常。You should not use a try/catch block to handle the exception. 相反,你应该确定丢失的元数据,并修改应用程序以确保其在运行时存在。Instead, you should determine what metadata is missing and modify your app's to ensure that it is present at runtime.



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

TypeAccessException(SerializationInfo, StreamingContext)

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


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

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



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)

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)

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)

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)

获取此异常的错误消息。Gets the error message for this exception.

(继承自 TypeLoadException)

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)

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)

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

(继承自 Exception)

获取导致异常的完全限定的类型名称。Gets the fully qualified name of the type that causes the exception.

(继承自 TypeLoadException)



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)

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)

用作默认哈希函数。Serves as the default hash function.

(继承自 Object)
GetObjectData(SerializationInfo, StreamingContext)

设置具有类名、方法名称、资源 ID 和其他异常信息的 SerializationInfo 对象。Sets the SerializationInfo object with the class name, method name, resource ID, and additional exception information.

(继承自 TypeLoadException)

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

(继承自 Exception)

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

(继承自 Object)

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)



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)