AutocompleteMenuNS.AutocompleteMenu.FindWrapper C# (CSharp) Method

        private ITextBoxWrapper FindWrapper(Control sender)
        {
            while (sender != null)
            {
                if (WrapperByControls.ContainsKey(sender))
                    return WrapperByControls[sender];

                sender = sender.Parent;
            }

            return null;
        }