private void NumberAction(object obj)
{
if (Operator == null)
{
_numberString = _numberString + obj;
NumberLists.Clear();
NumberLists.Add(double.Parse(_numberString.ToString()));
Number = NumberLists[0];
}
else
{
if (NumberLists.Count == 1)
{
_numberString = obj.ToString();
}
else
{
_numberString = _numberString + obj;
NumberLists.RemoveAt(1);
}
NumberLists.Add(double.Parse(_numberString.ToString()));
Number = NumberLists[1];
}
}
