Cannot attach an entity that already exists.

Posted by coure06 on Stack Overflow See other posts from Stack Overflow or by coure06
Published on 2010-04-09T07:09:22Z Indexed on 2010/04/09 7:13 UTC
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i am trying to update code via Linq, but getting this error
Cannot attach an entity that already exists.

C# code is here
var con = (from c in cmsContentTable where c.ContentName == contentId select c).FirstOrDefault();
cmsContentTable.Attach(con);
con.ContentData = "New Value";
cmsContentTable.Context.SubmitChanges();

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