Question

I’m using Linq to SQL to query an Object from DB.
I pass it via wcf to a Client Application, the Client App does some Changes on the Values and sends the Object back.
What I now want to do is updating the DB’s Item to take the new Values.
UNfortunately it is very hard to first select the object by a query statement, modify about 100 values and then submit changes back.

Is there any smarter way to update the Record using linq-to-sql without touching the Values?
My thought was, if i still have the ready object that linq is able to insert, if there is a way to just overwrite the existing one in DB?

Answer 1

Sure, use the Attach method. In your case probably this overload is appropriate.

This link gives some neat information.