public void Fn_TC1_AddToGrid(string letter)
{
mp.Refresh();
List <string> gridItems = mp.GetGridItems();
// remove before add in exists
if (gridItems.Contains(letter))
{
mp.DelGridItem(letter);
}
gridItems = mp.GetGridItems();
Assert.IsFalse(gridItems.Contains(letter), "req 1.2.1 'delete' letter failed, 'Add' could not be checked");
mp.AddGridItem(letter);
gridItems = mp.GetGridItems();
Assert.IsTrue(gridItems.Contains(letter), "req 1.2.1 'Add' do not add letter {0} to grid", letter);
}