/// <summary>
        /// 复制
        /// </summary>
        /// <returns></returns>
        public override object Clone()
        {
            DisplayManagerBindingSource <T> dm = new DisplayManagerBindingSource <T>(this.SearchManager.Clone() as ISearchManager);

            Copy(this, dm);
            return(dm);
        }
 /// <summary>
 /// ����
 /// </summary>
 /// <returns></returns>
 public override object Clone()
 {
     DisplayManagerBindingSource dm = new DisplayManagerBindingSource(this.SearchManager.Clone() as ISearchManager);
     Copy(this, dm);
     return dm;
 }