C# 生成月份及天选择列表，方便做下拉框联动

月份及天选择列表，很方便做下拉框联动

/// <summary>
        /// 获取月份选择列表（根据当前语言环境显示月份名称）
        /// </summary>
        private IEnumerable<SelectListItem> GetMonthSelectList()
        {
            var dateFormat = DateTimeFormatInfo.GetInstance(Thread.CurrentThread.CurrentUICulture);
            for (var i = 1; i <= 12; i++)
            {
                yield return new SelectListItem { Text = dateFormat.GetMonthName(i), Value = i.ToString() };
            }
        }
        /// <summary>
        /// 获取指定月份的日选择列表
        /// </summary>
        private IEnumerable<SelectListItem> GetDaySelectList(int year, int month)
        {
            var anyDate = new DateTime(year, month, 1);
            var lastDayOfMonth = anyDate.AddMonths(1).AddDays(-1).Day; //该月最后一天
            for (var d = 1; d <= lastDayOfMonth; d++)
            {
                yield return new SelectListItem { Text = d.ToString(), Value = d.ToString() };
            }
        }