private void btnOk_Click(object sender, EventArgs e)
        {
            if (IsEmpty())
            {
                return;
            }
            CategoryInfo newCategory = new CategoryInfo();

            newCategory.CName   = txtCName.Text;
            newCategory.CNum    = txtCNum.Text;
            newCategory.CRemark = txtCRemark.Text;

            CategoryInfoBLL categorybll = new CategoryInfoBLL();
            int             i           = 0;

            //插入时,给未在窗体显示的值添加默认值
            if (status == HandleStatus.Insert)
            {
                newCategory.DelFlag = 0;
                newCategory.SubBy   = 1;
                newCategory.SubTime = DateTime.Now;

                i = categorybll.add(newCategory);
            }
            //更新时,将未在窗体显示的值赋予原来的值
            if (status == HandleStatus.Update)
            {
                newCategory.CId     = oldCategory.CId;
                newCategory.DelFlag = oldCategory.DelFlag;
                newCategory.SubBy   = oldCategory.SubBy;
                newCategory.SubTime = oldCategory.SubTime;

                i = categorybll.update(newCategory);
            }
            string msg = i > 0 ? "操作成功" : "操作失败";

            md.MsgDivShow(msg, 1, Bind);
        }