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AccessViolationException Class

The exception that is thrown when there is an attempt to read or write protected memory.

System.Object
  System.Exception
    System.SystemException
      System.AccessViolationException

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
[ComVisibleAttribute(true)]
public class AccessViolationException : SystemException

The AccessViolationException type exposes the following members.

  NameDescription
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360AccessViolationException()Initializes a new instance of the AccessViolationException class with a system-supplied message that describes the error.
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360AccessViolationException(String)Initializes a new instance of the AccessViolationException class with a specified message that describes the error.
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360AccessViolationException(String, Exception)Initializes a new instance of the AccessViolationException 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 Silverlight for Windows PhoneSupported by Xbox 360DataGets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
Protected propertySupported by Silverlight for Windows PhoneSupported by Xbox 360HResultGets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360InnerExceptionGets the Exception instance that caused the current exception. (Inherited from Exception.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360MessageGets a message that describes the current exception. (Inherited from Exception.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360StackTraceGets a string representation of the frames on the call stack at the time the current exception was thrown. (Inherited from Exception.)
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  NameDescription
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360Equals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows PhoneSupported by Xbox 360FinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360GetBaseExceptionWhen 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 Silverlight for Windows PhoneSupported by Xbox 360GetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360GetTypeGets the runtime type of the current instance. (Inherited from Exception.)
Protected methodSupported by Silverlight for Windows PhoneSupported by Xbox 360MemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360ToStringCreates and returns a string representation of the current exception. (Inherited from Exception.)
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An access violation occurs in unmanaged or unsafe code when the code attempts to read or write to memory that has not been allocated, or to which it does not have access. This usually occurs because a pointer has a bad value. Not all reads or writes through bad pointers lead to access violations, so an access violation usually indicates that several reads or writes have occurred through bad pointers, and that memory might be corrupted. Thus, access violations almost always indicate serious programming errors. In the .NET Framework version 2.0, an AccessViolationException clearly identifies these serious errors.

In programs consisting entirely of verifiable managed code, all references are either valid or null, and access violations are impossible. An AccessViolationException occurs only when verifiable managed code interacts with unmanaged code or with unsafe managed code.

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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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