TypeAccessException Class

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

The exception that is thrown when a method attempts to use a type that it does not have access to.

Inheritance Hierarchy

System..::.Object
System..::.Exception
System..::.SystemException
System..::.TypeLoadException
System..::.TypeAccessException

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

Syntax

Public Class TypeAccessException _
    Inherits TypeLoadException
public class TypeAccessException : TypeLoadException

The TypeAccessException type exposes the following members.

Constructors

Name Description
TypeAccessException()()() Initializes a new instance of the TypeAccessException class with a system-supplied message that describes the error.
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.

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Properties

Name Description
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 frames on the call stack at the time the current exception was thrown. (Inherited from Exception.)
TypeName Gets the fully qualified name of the type that causes the exception. (Inherited from TypeLoadException.)

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Methods

Name Description
Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (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 a hash function for a particular type. (Inherited from Object.)
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.)

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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.

Version Information

Windows Phone OS

Supported in: 8.1, 8.0

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

System Namespace