Hello,

Thank you for your feedback. I am glad that you resolved your issue and I believe that other community members may benefit from this as well. I have been looking into your code and I can say that it is a good approach and if I think of something better, I will let you know.

Thanks again.

Thanks for the repl.

That gets me part of the way there. I need to get the CurrentAddRecord according to which part of the grid has focus, even if a cell is not selected. This is what I ended up doing. If you see a better way am all ears.

XamDataGrid DataGrid = UIHelper.FindVisualChild<XamDataGrid>(AssociatedObject);
                    DataRecord CurrentAddRow = null;
 
                    if (DataGrid != null)
                    {
                        if (DataGrid.ActiveCell != null && DataGrid.ActiveCell.Record.RecordManager.CurrentAddRecord != null)
                            CurrentAddRow = DataGrid.ActiveCell.Record.RecordManager.CurrentAddRecord;
                        else if (DataGrid.RecordManager != null && DataGrid.RecordManager.CurrentAddRecord != null)
                            CurrentAddRow = DataGrid.RecordManager.CurrentAddRecord;
                        else if (DataGrid.ActiveRecord != null && DataGrid.ActiveRecord is GroupByRecord)
                            CurrentAddRow = TryGetGroupChildCurrentAddRow(DataGrid.ActiveRecord as GroupByRecord);
                        else if (DataGrid.ActiveRecord != null && DataGrid.ActiveRecord is DataRecord)
                            CurrentAddRow = (DataGrid.ActiveRecord as DataRecord).RecordManager.CurrentAddRecord;
                    }
 
                    if (CurrentAddRow != null)
                    {
                        CellValuePresenter FieldNamePresenter = CellValuePresenter.FromRecordAndField(CurrentAddRow, CurrentAddRow.FieldLayout.Fields[FocusFieldName]);
                        if (FieldNamePresenter != null)
                        {
                            Dispatcher.BeginInvoke(new Action(() =>
                            {
                                FieldNamePresenter.Editor.StartEditMode();
                            }), DispatcherPriority.Normal, null);
                        }
                    }

private DataRecord TryGetGroupChildCurrentAddRow(GroupByRecord groupByRecord)
        {
            try
            {
                foreach (DataRecord GroupChild in groupByRecord.ChildRecords)
                {
                    if (GroupChild != null)
                    {
                        if (GroupChild.RecordManager.CurrentAddRecord != null)
                            return GroupChild.RecordManager.CurrentAddRecord;
                        else
                        {
                            foreach (ExpandableFieldRecord FieldRecord in GroupChild.ChildRecords)
                            {
                                if (FieldRecord != null)
                                {
                                    if (FieldRecord.ChildRecordManager.CurrentAddRecord != null)
                                        return FieldRecord.ChildRecordManager.CurrentAddRecord;
                                }
                            }
                        }
                    }
                }
 
                return null;
            }
            catch
            {
                return null;
            }
        }