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TypeAccessException Class

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

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

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

[SerializableAttribute]
public class TypeAccessException : TypeLoadException

The TypeAccessException type exposes the following members.

  NameDescription
Public methodSupported by Portable Class LibraryTypeAccessException()Initializes a new instance of the TypeAccessException class with a system-supplied message that describes the error.
Public methodSupported by Portable Class LibraryTypeAccessException(String)Initializes a new instance of the TypeAccessException class with a specified message that describes the error.
Protected methodTypeAccessException(SerializationInfo, StreamingContext)Initializes a new instance of the TypeAccessException class with serialized data.
Public methodSupported by Portable Class LibraryTypeAccessException(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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  NameDescription
Public propertySupported by Portable Class LibraryDataGets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
Public propertySupported by Portable Class LibraryHelpLinkGets or sets a link to the help file associated with this exception. (Inherited from Exception.)
Public propertySupported by Portable Class LibraryHResultGets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.)
Public propertySupported by Portable Class LibraryInnerExceptionGets the Exception instance that caused the current exception. (Inherited from Exception.)
Public propertySupported by Portable Class LibraryMessageGets the error message for this exception. (Inherited from TypeLoadException.)
Public propertySupported by Portable Class LibrarySourceGets or sets the name of the application or the object that causes the error. (Inherited from Exception.)
Public propertySupported by Portable Class LibraryStackTraceGets a string representation of the immediate frames on the call stack. (Inherited from Exception.)
Public propertyTargetSiteGets the method that throws the current exception. (Inherited from Exception.)
Public propertySupported by Portable Class LibraryTypeNameGets the fully qualified name of the type that causes the exception. (Inherited from TypeLoadException.)
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  NameDescription
Public methodSupported by Portable Class LibraryEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodSupported by Portable Class LibraryFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Portable Class LibraryGetBaseExceptionWhen overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.)
Public methodSupported by Portable Class LibraryGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetObjectDataSets the SerializationInfo object with the class name, method name, resource ID, and additional exception information. (Inherited from TypeLoadException.)
Public methodGetTypeGets the runtime type of the current instance. (Inherited from Exception.)
Protected methodSupported by Portable Class LibraryMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Portable Class LibraryToStringCreates and returns a string representation of the current exception. (Inherited from Exception.)
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  NameDescription
Protected eventSerializeObjectStateOccurs when an exception is serialized to create an exception state object that contains serialized data about the exception. (Inherited from Exception.)
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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.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

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