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Saturday, January 09, 2010

EntitiesInError in WCF RIA Services

by Corrado Cavalli via Corrado's BLogs on 1/9/2010 3:25:31 PM

Gestire situazioni in cui si hanno problemi di concorrenza tra utenti con i WCF RIA Services è veramente molto semplice, supponiamo di voler sapere se durante un operazione di update qualcuno ha modificato prima di noi gli stessi records. Il codice da scrivere è il seguente: private void OnUpdate(object sender, RoutedEventArgs e) { this.customersContext.SubmitChanges(lop => { if(lop.HasError) { MessageBox.Show(lop.En ...

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