DevExpress - GridView - GetSelectedFieldValues

Cześć,
Czy spotkał się ktoś może z takim problem podczas pobierania danych z GridView ?nie bardzo znajduje rozwiązania a przepatrzyłem już nawet 2 stronę google :P

W momencie gdy chce pobrać numery dokumentu wyskakuje mi okienko (załącznik) , i w sumie tyle, jak mam wczytać numery zaznaczonych dokumentów ?

<script type="text/javascript">
   
    function GetSel(result) {
        for (var i = 0; i < result.length; i++)
            for (var j = 0; j < result[i].length; j++)
                alert(result[i][j]);
            

    }
</script>

@{
    var grid = Html.DevExpress().GridView(settings =>
    {
        settings.Name = "DocumentsGridView";
        settings.CallbackRouteValues = new { Controller = "Home", Action = "DocumentsGridViewPartial" };

       

        settings.Toolbars.Add(T =>
        {
            T.Enabled = true;
            T.Position = GridToolbarPosition.Top;
            T.Items.Add(i =>
            {
                i.Text = "ASD";
                i.BeginGroup = true;

            });
        });

        **  settings.ClientSideEvents.ToolbarItemClick = "function(s,e){DocumentsGridView.GetSelectedFieldValues('Number',GetSel);}";**

        settings.EnableCallbackAnimation = false;
        settings.EnableCallbackCompression = false; 

        settings.KeyFieldName = "Id";

        settings.SettingsPager.Visible = true;
        settings.Settings.ShowGroupPanel = true;
        settings.Settings.ShowFilterRow = true;
        settings.SettingsBehavior.AllowSelectByRowClick = true;

        settings.SettingsAdaptivity.AdaptivityMode = GridViewAdaptivityMode.Off;
        settings.SettingsAdaptivity.AdaptiveColumnPosition = GridViewAdaptiveColumnPosition.Right;
        settings.SettingsAdaptivity.AdaptiveDetailColumnCount = 1;
        settings.SettingsAdaptivity.AllowOnlyOneAdaptiveDetailExpanded = false;
        settings.SettingsAdaptivity.HideDataCellsAtWindowInnerWidth = 0;
        settings.CommandColumn.Visible = true;
        settings.CommandColumn.ShowSelectCheckbox = true;
		
        settings.Columns.Add("Number");
        settings.Columns.Add("IncomingNumber");