TypeAccessException Class
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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.

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

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

public class TypeAccessException : TypeLoadException

The TypeAccessException type exposes the following members.

  NameDescription
Public methodTypeAccessException()Initializes a new instance of the TypeAccessException class with a system-supplied message that describes the error.
Public methodTypeAccessException(String)Initializes a new instance of the TypeAccessException class with a specified message that describes the error.
Public methodTypeAccessException(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 propertyDataGets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
Public propertyHelpLinkGets or sets a link to the help file associated with this exception. (Inherited from Exception.)
Public propertyHResultGets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.)
Public propertyInnerExceptionGets the Exception instance that caused the current exception. (Inherited from Exception.)
Public propertyMessageGets the error message for this exception. (Inherited from TypeLoadException.)
Public propertySourceGets or sets the name of the application or the object that causes the error. (Inherited from Exception.)
Public propertyStackTraceGets a string representation of the frames on the call stack at the time the current exception was thrown. (Inherited from Exception.)
Public propertyTypeNameGets the fully qualified name of the type that causes the exception. (Inherited from TypeLoadException.)
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  NameDescription
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetBaseExceptionWhen overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the runtime type of the current instance. (Inherited from Exception.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringCreates and returns a string representation of the current 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.

Windows Phone OS

Supported in: 8.1, 8.0

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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