How to update single object in sql to linq?

If you don't want to save changes to b, then why assign b. Name = "name2". Use a temporary variable to store "name2".

Later you can assign it to b. Name if you want.

Not use temporary. User maybe save "b" object. Maybe cancel "b" object.

– ebattulga Mar 30 '10 at 10:42.

My understanding is that the purpose of a DataContext is to encapsulate a set of changes to be submitted together. If you want some changes to be separate, create another DataContext instance. DataContexts, I believe, are intended to be lightweight and quick to create and release.In the application I have created that uses LINQ to SQL heavily, I create a separate DataContext for every window.

Do NOT use a shared data context for your whole application. It's not like a database connection. That's why the database connection is a separate object.

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