private async void btn_group_Click(object sender, RoutedEventArgs e) { if (allowAction) { var listCheckedContact = GetCheckedContactList_EF(); BelongToGroup frm = new BelongToGroup(this, listCheckedContact); await frm.ShowAsync(); //btn_delete.IsEnabled = false; //btn_group.IsEnabled = false; } }
private async void btn_group_Click(object sender, RoutedEventArgs e) { if (allowAction) { List<ContactDB> listCheckedContact = GetCheckedContactList(); BelongToGroup frm = new BelongToGroup(this, listCheckedContact); await frm.ShowAsync(); int count = listview_contacts.Items.Count; for (int i = 0; i < count; i++) { Object item = listview_contacts.Items[i]; if (item is ListViewContactItem) { if (((ListViewContactItem)item).IsCheck) { return; } } } btn_delete.IsEnabled = false; btn_group.IsEnabled = false; } }