日期区间查询语句
m_Where += " and (CreateDate between '" + Convert.ToDateTime(uxTextBoxStartDate.Text).ToString() + "' and '" + Convert.ToDateTime(uxTextBoxEndDate.Text).AddDays(1).AddSeconds(-1) + "')"
Convert.ToDateTime(uxTextBoxEndDate.Text).AddDays(1).AddSeconds(-1)
表示在当前日期加上一天再减去一秒