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I would like to ensure that var a has not changed between retrieving it and performing the update on var b. 

var a = from item in....

if (a > 100) {
    var b = from item in...
    b.something = 100;
    db.SubmitChanges()
}

How would I go about doing this? Do I just wrap the thing in a TransactionScope?

BobTurbo
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1 Answers1

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Linq 2 sql is designed for optimistic concurrency out of the box (what you want is pessimistic) http://msdn.microsoft.com/en-us/library/bb399373.aspx

Due to possible deadlocks etc. with locking, I think you better stick to optimistic and handle the conflict resolution. Otherwise, have a look here: LINQ to SQL and Concurrency Issues

Community
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Pleun
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