Hi Jean-Pascal,

Let me know if you have any further questions on this matter.

Hi Jean-Pascal,

You will need to force edit mode in the XamDataGrid to complete before you can access the newly added record values.  If your tabs only contain one XamDataGrid then you can use this code to get the grid and force the changes.  Add it at the top of your SelectionChanged event.

XamDataGrid grid = (XamDataGrid)Utilities.GetDescendantFromType(xamTabControl1, typeof(XamDataGrid), false);
if (grid != null)
    grid.ExecuteCommand(DataPresenterCommands.EndEditModeAndAcceptChanges);

Look at pic that I attached and the code snippet below.

    public partial class LoginUsersControl : UserControl
    {
        public LoginViewModel LoginViewModel = new LoginViewModel("NasServer.xml");
        //public Regex _onlyAlphaNum = new Regex("^[a-zA-Z0-9]*$");
        //public bool _allowTabChange = true;

        public LoginUsersControl()
        {
            InitializeComponent();
            DataContext = LoginViewModel;
            _xamTabControl.ExecuteCommand(TabControlCommands.SelectFirstTab);
        }

        private void DataPresenterBase_OnRecordActivated(object sender, RecordDeactivatingEventArgs e)
        {
            var datarecord = (DataRecord) e.Record;
            foreach (Field field in datarecord.FieldLayout.Fields)
            {
                CellValuePresenter cellValue = CellValuePresenter.FromRecordAndField(datarecord, field);
                if (cellValue.Value == null)
                {
                    cellValue.StartEditMode();
                    e.Cancel = true;
                    break;
                }
            }
        }

        private void _xamTabControl_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (e.RemovedItems.Count == 0)
            {
                return;
            }

            var login = (ServersLogins) e.RemovedItems[0];

            Debug.WriteLine(login.Server);

            foreach (var log in login.Logins)
            {
                Debug.WriteLine(log.User);
                Debug.WriteLine(log.Password);
            }
        }
    }
}

As you can see on the pic, the cell is not fullfiled and I click on tabitemex, this raised the event _xamTabControl_OnSelectionChanged. As the output I've got only

mibaz
test1
test
test2
test

but sdsd... is missing, because after entered into cell, I did not confirm with enter key.

How can I solve my problem?

I've forgot to post my xaml code

<igWindows:XamTabControl Name="_xamTabControl"
             ItemsSource="{Binding AutoLogins}"
             Theme="Metro"
             AllowTabClosing="False"
             TabItemCloseButtonVisibility="WhenSelectedOrHotTracked"
             SelectionChanged="_xamTabControl_OnSelectionChanged">
            <igWindows:XamTabControl.ItemContainerStyle>
                <Style TargetType="{x:Type igWindows:TabItemEx}" BasedOn="{x:Static igThemes:PrimitivesMetro.TabItemEx}">
                    <Setter Property="Header" Value="{Binding Server}" />
                </Style>
            </igWindows:XamTabControl.ItemContainerStyle>
            <igWindows:XamTabControl.ContentTemplate>
                <DataTemplate>
                    <igDp:XamDataGrid DataSource="{Binding Logins}" IsGroupByAreaExpanded="False"
                                      GroupByAreaLocation="None" GroupByAreaMode="DefaultFieldLayoutOnly"
                                      RecordDeactivating="DataPresenterBase_OnRecordActivated">
                        <igDp:XamDataGrid.FieldLayoutSettings>
                            <igDp:FieldLayoutSettings AddNewRecordLocation="OnBottom" AllowAddNew="True" AllowDelete="True" />
                        </igDp:XamDataGrid.FieldLayoutSettings>
                        <igDp:XamDataGrid.FieldSettings>
                            <igDp:FieldSettings AllowResize="False" LabelWidth="200" LabelTextAlignment="Center"/>
                        </igDp:XamDataGrid.FieldSettings>
                    </igDp:XamDataGrid>
                </DataTemplate>
            </igWindows:XamTabControl.ContentTemplate>
        </igWindows:XamTabControl>

As you can see, I build my TabItemEx dynamic. When the cell data is not fullfilled, for example just password column is filled, so I want to prevent that user can not click on TabItemEx to change tab.