Hi Helmut,
Thank you for your update.
In SfDataGrid, SelectedItems is ObseravableCollection of object. If you want to call its setter, you need to assign the collection to that property. Please refer the below code snippet,
C#:
|
ObservableCollection<object> selectedItemsCollection = newObservableCollection<object>();
PersonModel viewModel;
public MainWindow()
{
InitializeComponent();
viewModel = this.DataContext as PersonModel;
selectedItemsCollection.Add(viewModel.PersonDetails[1]);
selectedItemsCollection.Add(viewModel.PersonDetails[2]);
selectedItemsCollection.Add(viewModel.PersonDetails[3]);
selectedItemsCollection.Add(viewModel.PersonDetails[4]);
this.dataGrid.SelectedItems.CollectionChanged += SelectedItems_CollectionChanged;
}
private void Button1_Click(object sender, RoutedEventArgs e)
{
viewModel.SelectedItems = selectedItemsCollection;
} |
In our sample, when you select the items, these items are added to that collection, so its collection changed called. It’s a difference between assign and add the items. Please refer the below sample,
Please let us know if you need further assistance on this.
Regards,
Susmitha S
