gistfile1.cs

        private Dictionary<Side, double> GetValuesForSecondBoundry()
        {
            Dictionary<Side, double> dict = new Dictionary<Side, double>();
            List<Side> sides = EnumToList<Side>();

            for (int i = 0; i < this.SideAreaSecondConditionsList.Items.Count; i++)
            {
                int id = int.Parse(this.SideAreaSecondConditionsList.Items[i].SubItems[2].Text);
                dict.Add(sides[id], getValueAsDouble(this.SideAreaSecondConditionsList.Items[i].SubItems[1].Text));
            }

            return dict;
        }

        private void AddSecondConditionFromDict(double[] values, string[] keys)
        {
            List<Side> sides = EnumToList<Side>();
            this.SideAreaSecondConditionsList.Items.Clear();
            
            for(int i = 0; i < values.Length; i++)
            {
                int id = int.Parse(keys[i]);
                this.SideAreaSecondConditionsList.Items.Add(new ListViewItem(new string[] { sides[id].ToString(), values[i].ToString(), keys[i].ToString() })); 
            }
        }