OptimisticConcurrencyException Class
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OptimisticConcurrencyException Class

The exception that is thrown when an optimistic concurrency violation occurs.

Namespace:  System.Data
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

public sealed class OptimisticConcurrencyException : UpdateException

For more information about how to handle exceptions in your code, see Exception.


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

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5 SP1

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