Autocomplete and Enter/TAB key navigation

[Robert Stuczynski]

It is not easy to explain and I record short vidoe how it work:
video

I have comboboxcolumn in gridview:

GridViewComboBoxColumn _zNrSpec = new GridViewComboBoxColumn();
            _zNrSpec.DataSource = dbS.view_Trans_Order_StockCodes.OrderBy(o=>o.StockCode);
            _zNrSpec.DisplayMember = "StockCode";
            _zNrSpec.ValueMember = "StockCode";
            _zNrSpec.FieldName = "zNrSpec";
            _zNrSpec.Width = 90;
            _zNrSpec.HeaderText = "Specyf";
            _zNrSpec.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
            _zNrSpec.DropDownStyle = Telerik.WinControls.RadDropDownStyle.DropDown;
            radDgvPozyc.MasterGridViewTemplate.Columns.Add(_zNrSpec);

If I try add new value (by choice one of position in this ComboBoxColumn) I must use arrows before I press TAB. I the other case my value is not member :(
Of course I can not use ENTER because if I do it I will not be able add vaule to another column.
How change key TAB behavior to member my value?

PS> Sorry I am wrong choice forum. Could you change it to correct: WinForms, Combobox?
If something is not clear pleas ask me. 

[Robert Stuczynski]

I resolve my problem by setting:

radDgvPozyc.EnterKeyMode = RadGridViewEnterKeyMode.EnterMovesToNextCell;

But I had another similar problem - I'll decribe it in another topic.