Linq submitchanges not updating ivy dating
Once I added a new column and made a primary key than everything worked fine. This was my test table to i didnt have primary key.You can therefore try to correct the problem and call Submit Changes again, as in the code example that follows. When the transaction around the submission is completed successfully, the Data Context accepts the changes to the objects by ignoring the change-tracking information. Dim db As New Northwnd("c:\northwnd.mdf") ' Make changes here. Submit Changes() Catch e As Change Conflict Exception Console. I have a list view with two colums in wpf Customername and Isvalid.All changes to the database are rolled back as if no submissions ever occurred.The Data Context still has a full recording of all changes.
The simplest thing to do is to set the primary key column to clauses for updates, but can occasionally also cause problems.
Obviously such behaviour is required for proper concurrency checking (i.e.
two threads updating the same row); so be aware of that.
This instance of the object uses the second constructor.
I ran debug to verify that the hold object "this Hold" is updating the values that are being changed in the form.