protected virtual AutoCompleteEntryCollection FilterList(AutoCompleteEntryCollection list)
        {
            AutoCompleteEntryCollection newList = new AutoCompleteEntryCollection();

            foreach (IAutoCompleteEntry entry in list)
            {
                AutoCompleteEntry autocom = (AutoCompleteEntry)entry;

                if (autocom.DisplayName.ToUpper().Contains(this.Text.ToUpper()))
                {
                    newList.Add(entry);
                }

                /*foreach (string match in entry.MatchStrings)
                 * {
                 *      if (match.ToUpper().StartsWith(this.Text.ToUpper()))
                 *      {
                 *              newList.Add(entry);
                 *              break;
                 *      }
                 * }*/
            }
            return(newList);
        }
        protected virtual AutoCompleteEntryCollection FilterList(AutoCompleteEntryCollection list, bool bolNeedFilter)
        {
            int    iFontMaxCount = 0;//最大字数
            string strMaxFont    = "";
            AutoCompleteEntryCollection newList = new AutoCompleteEntryCollection();

            foreach (IAutoCompleteEntry entry in list)
            {
                AutoCompleteEntry autocom = (AutoCompleteEntry)entry;

                if (autocom.DisplayName.Length > iFontMaxCount)
                {
                    iFontMaxCount = autocom.DisplayName.Length;
                    strMaxFont    = autocom.DisplayName;
                }

                if (!bolNeedFilter || autocom.DisplayName.ToUpper().Contains(this.Text.TrimEnd().ToUpper()))
                {
                    newList.Add(entry);
                }

                /*foreach (string match in entry.MatchStrings)
                 * {
                 *      if (match.ToUpper().StartsWith(this.Text.ToUpper()))
                 *      {
                 *              newList.Add(entry);
                 *              break;
                 *      }
                 * }*/
            }
            Graphics g        = this.CreateGraphics();
            SizeF    sizeFont = g.MeasureString(strMaxFont, this.Font);

            this.PopupWidth = Math.Max((int)sizeFont.Width, this.Width);
            return(newList);
        }