public void ChangeDatabase() { if (mappingPageViewModel.TableMappingViewModels != null && connectionPageViewModel.SelectedDatabase != null) { mappingPageViewModel.tableMappingSwitchDatabase(mappingPageViewModel.TableMappings.ToArray(), connectionPageViewModel.SelectedDatabase); } NotifyPropertyChanged("TableMappings"); NotifyPropertyChanged("MappingTableReferences"); NotifyPropertyChanged("TableMappingViewModels"); }