private double GetResistorValueOfStage(int stage)
        {
            var cb = stackPanelResistor.Children[stage] as ComboBox;

            if (cb == null)
            {
                var grid = stackPanelResistor.Children[stage] as Grid;
                cb = grid.Children[0] as ComboBox;
            }
            ResistorValueType rvt = (ResistorValueType)cb.SelectedIndex;

            return(ResistorValueTypeToValue(rvt));
        }
 public double ResistorValueTypeToValue(ResistorValueType t)
 {
     return(mResistorValues[(int)t]);
 }