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Exception in AttachCopy with computed columns

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Bernd asked on 30 Jan 2017, 10:31 AM

Hello all.

I have a table with computed columns. They are marked as such in the meta data source:

configuration.HasProperty(x => x.EndWeek).WithDataAccessKind(DataAccessKind.ReadOnly).IsNullable();

configuration.HasProperty(x => x.StartWeek).WithDataAccessKind(DataAccessKind.ReadOnly).IsNullable();

configuration.HasProperty(x => x.Duration).WithDataAccessKind(DataAccessKind.ReadOnly).IsNullable();

Performing an update via "AttachCopy" throws an exception.

Telerik.OpenAccess.Exceptions.InvalidOperationException: The update of field 'idee5.Dispatcher.Model.DAL.CalendarEvent.<Duration>k__BackingField' is not allowed.

Quellfehler:

Zeile 66: public CalendarEventViewModel Update(CalendarEventViewModel updatedObject) {

Zeile 67: CalendarEvent toBeUpdated = _mapper.Map<CalendarEvent>(updatedObject);

Zeile 68: _db.AttachCopy(toBeUpdated);

Zeile 69: _db.SaveChanges();

Zeile 70: return updatedObject;

How can I tell DataAccess to handle those computed columns correctly by ignoring changes?

Thanks

Bernd

Exception in AttachCopy with computed columns

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