TypeAccessException Class

Definition

Namespace:

System

Assembly:

System.Runtime.dll

Source:

TypeAccessException.cs

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

Inheritance

Object

Exception

SystemException

TypeLoadException

TypeAccessException

Remarks

TypeAccessException is thrown when a method attempts to cast an object to a type that is not accessible from the method. For example, an anonymously hosted dynamic method cannot access a security-critical type because the method is transparent. 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.

Similarly, TypeAccessException is thrown for a dynamic method that uses an internal type from another assembly. A method might not have access to its containing type, its return type, or one of its parameter types.

Apps compiled by using the .NET Native tool chain may throw a MissingMetadataException exception at run time. MissingMetadataException is an internal-only exception type derived from TypeAccessException. The exception indicates that metadata needed for the successful execution of an app is not present at run time. You should not use a try/catch block to handle the exception. Instead, you should determine what metadata is missing and modify your app's runtime directives file to ensure that it is present at run time.

Constructors

TypeAccessException()	Initializes a new instance of the TypeAccessException class with a system-supplied message that describes the error.
TypeAccessException(SerializationInfo, StreamingContext)	Obsolete. Initializes a new instance of the TypeAccessException class with serialized data.
TypeAccessException(String)	Initializes a new instance of the TypeAccessException class with a specified message that describes the error.
TypeAccessException(String, Exception)	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.

Properties

Data	Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception)
HelpLink	Gets or sets a link to the help file associated with this exception. (Inherited from Exception)
HResult	Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception)
InnerException	Gets the Exception instance that caused the current exception. (Inherited from Exception)
Message	Gets the error message for this exception. (Inherited from TypeLoadException)
Source	Gets or sets the name of the application or the object that causes the error. (Inherited from Exception)
StackTrace	Gets a string representation of the immediate frames on the call stack. (Inherited from Exception)
TargetSite	Gets the method that throws the current exception. (Inherited from Exception)
TypeName	Gets the fully qualified name of the type that causes the exception. (Inherited from TypeLoadException)

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetBaseException()	When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext)	Obsolete. Sets the SerializationInfo object with the class name, method name, resource ID, and additional exception information. (Inherited from TypeLoadException)
GetType()	Gets the runtime type of the current instance. (Inherited from Exception)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Creates and returns a string representation of the current exception. (Inherited from Exception)

Events

SerializeObjectState

Obsolete. Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception. (Inherited from Exception)