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BOOK: Beginning ASP.NET 4 : in C# and VB
This is the forum to discuss the Wrox book Beginning ASP.NET 4: in C# and VB by Imar Spaanjaars; ISBN: 9780470502211
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Old November 28th, 2011, 02:10 AM
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Default Optimistic Concurrency check box

Hi there,
I have question about 'Optimistic Concurrency check box' in SqlDataSource Advance option. Can anyone elaborate more in details what it does.
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Old November 28th, 2011, 03:12 AM
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When you check that option, VWD generates a WHERE statement that includes all columns and their original values. This way, the UPDATE statement won't update a record if someone else has updated any of those columns since the last time you queried the record from the database.

For more info: http://www.google.nl/#sclient=psy-ab...+SqlDataSource

Cheers,

Imar
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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