关于自定义控件设计时如何把属性写入aspx中的研究（下）

/// <summary>
        /// 已重写。获取表示 GridView 控件中列字段的 DataControlField 对象的集合。
        /// 重写以实现设计时把英文表头转为中文、列重新排序、列宽度调整
        /// </summary>
        public override DataControlFieldCollection Columns
        {
            get
            {
                DataControlFieldCollection cs = base.Columns;
                if (cs == null || cs.Count < 1 || Site == null || Site.Component == null) return cs;
                SetDefaultStype(cs);
                NGridView ng = Site.Component as NGridView;
                if (ng == null || !ng.DesignMode) return cs;
                try
                {
                    if (ng.GetHashCode() == this.GetHashCode())
                    {
                        //if (isEntryCreating || !(isChanged || AutoGenerateDeleteButton || AutoGenerateEditButton || AutoGenerateSelectButton)) return cs;
                        if (isEntryCreating) return cs;
                        //SetDefaultStype(cs);
                        if (!isChanged) return cs;
                        isEntryCreating = true;
                        CreateEntryColumns(cs);
                    }
                }
                catch (Exception ex) { MessageBox.Show(ex.Message, "NGridView"); }
                finally
                {
                    isEntryCreating = false;
                    isChanged = false;
                }
                return cs;
            }
        }