C# 生成月份及天选择列表，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() };
}
}