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I have two System.Data.Linq.DataContext instances of same type. There is a table Table1 in DataContext. I add an object in first DataContext instance to the Table1 using the InsertOnSubmit method and I call SubmitChanges in second instance.
Will the object be inserted?
No. The SubmitChanges call only looks at the changes logged in the current context. It will not know about changes in a different data context and won’t submit them. There are some things you can do that would make it appear so (like adding the object to a collection in on an object in the submitted context), but if they are truly independent, then it won’t work.