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copied!<p>The context is not permanently connected to the database. It is essentially an in-memory cache of records you have loaded from disk. It will only request records from the database when you request a record it has not previously loaded, if you force it to refresh or when you're saving your changes back to disk.</p> <p>Opening a context, grabbing a record, closing the context and then copying modified properties to an object from a brand new context is the epitomy of redundant code. You are supposed to leave the original context alone and use that to do SaveChanges().</p> <p>If you're looking to deal with concurrency issues you should do a google search about "handling concurrency" for your version of entity framework.</p> <p>As an example I have found <a href="http://www.dotnetrangers.net/2011/10/17/code-first-with-entity-framework-4-1-part5-concurrency-management/" rel="nofollow">this</a>.</p> <p><strong>Edit in response to comment:</strong></p> <p>So from what I understand you need a subset of the columns of a record to be overridden with new values while the rest is unaffected? If so, yes, you'll need to manually update these few columns on a "new" object. </p> <p>I was under the impression that you were talking about a form that reflects all the fields of the customer object and is meant to provide edit access to the entire customer record. In this case there's no point to using a new context and painstakingly copying all properties one by one, because the end result (all data overridden with form values regardless of age) will be the same.</p>

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