public virtual void TryShowCompletionList()
        {
            string beforeCaret = this.MyTextBox.TextBeforeCaret;
            string lastWord    = Strings.GetLastWord(beforeCaret);

            if (lastWord.Length > 0)
            {
                Completion.ShowCompletionList(this, lastWord);
            }
            else
            {
                Completion.HideCompletionList();
            }
        }