UltraWinGrid ActiiveRow default selection

gistfile1.cs

void LoadGrid(List<ViewModel> viewModels)
{
    bindingSource.Clear();
    foreach (var model in viewModels)
        bindingSource.Add(model);    
}

void LoadGrid(List<ViewModel> viewModels)
{
    bindingSource.Clear();
    foreach (var model in viewModels)
        bindingSource.Add(model);
	//Makes no diffrence
    ultraWinListGrid.ActiveRow = null;
}