IsolatedStorageException 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 an operation in isolated storage fails.

Inheritance Hierarchy


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


Public Class IsolatedStorageException _
    Inherits Exception
public class IsolatedStorageException : Exception

The IsolatedStorageException type exposes the following members.


Name Description
IsolatedStorageException()()() Initializes a new instance of the IsolatedStorageException class with default properties.
IsolatedStorageException(String) Initializes a new instance of the IsolatedStorageException class with a specified error message.
IsolatedStorageException(String, Exception) Initializes a new instance of the IsolatedStorageException class with a specified error message and a reference to the inner exception that is the cause of this exception.



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 a message that describes the current exception. (Inherited from Exception.)
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.)



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.)



To diagnose isolated storage exceptions, you can examine the Exception..::.InnerException property to see more information about what caused the exception. In release mode, you must set a registry key at HKEY_LOCAL_MACHINE\software\Microsoft\WindowsPhone\IsolatedStorageInnerExceptionsAllowedDomains to specify that the InnerException property contains the exception. In the registry key, you provide a comma-separated list of domains that are permitted to include the inner exception for isolated storage exceptions.

IsolatedStorageException uses the HRESULT ISS_E_ISOSTORE, which has the value 0x80131450.

The most common examples of isolated storage exceptions are as follows.

  • Missing evidence. Isolated storage requires evidence (information about the assembly and its origin) in order to determine the identity of the code and connect it to the correct associated file space. Without this information, isolated storage cannot be used.

  • Invalid operations. Some FileStream operations are not supported for isolated storage.

For a list of initial property values for an instance of IsolatedStorageException, see the IsolatedStorageException constructors.

Version Information

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0


Windows Phone

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


System.IO.IsolatedStorage Namespace