System.Windows.Automation.SelectionItemPattern.AddToSelection C# (CSharp) Method

        public void AddToSelection()
        {
            try
            {
                this._pattern.AddToSelection();
            }
            catch (System.Runtime.InteropServices.COMException e)
            {
                Exception newEx; if (Utility.ConvertException(e, out newEx)) { throw newEx; } else { throw; }
            }
        }