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Asked: 2026-05-25T01:55:33+00:00

Why is it harmful to use TranscationScope ‘s default constructor? Can someone point me

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Why is it harmful to use TranscationScope‘s default constructor?

Can someone point me to explanation of this?

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  1. Editorial Team

    Please read this article on the MSDN blog using new TransactionScope() Constructor.

    Excerpt:

    The TransactionScope’s default constructor is, for the purposes of SQL
    Sever database programming, broken. TransactionScope’s default
    constructor defaults the isolation level to Serializable and the
    timeout to 1 minute. IMO both these settings are harmful when working
    against SQL Server.

    The transaction timeout is bad because it’s obscure. A SqlCommand
    already has a CommandTimeout property that defaults to 30 seconds. If
    you explicitly extend the CommandTimeout on a SqlCommand, it’s
    probably unexpected that your transaction would timeout before that.
    But at least the timeout default can be changed in your application
    configuration file.

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