排班知识点

1.Sql中getDate()在查询语句中的用法

select *  FROM V_MANAGERPLAN  where
(SEAT_ID in (45,46)) and  (GETDATE() between  BeginTime and  EndTime)
 order by Shift_sortid,seatSort

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2.日期加星期（示例：2017-12-22 星期五）

<span class="sWeek">
                <%=DateTime.Now.ToString("yyyy-MM-dd") %> <%=System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(DateTime.Now.DayOfWeek)%></span>

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3.定时器间隔多少毫秒执行

var time1=$.trim($("#sUserName1").html() == "暂无排班信息")==true?30000:1800000;
        setInterval(function () { LoadScheduling(); }, time1);

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4.日期js(示例：2017/12/22)

 var nowtime = new Date();
        var time = nowtime.getFullYear() + "-" + nowtime.getMonth() + "-" + nowtime.getDate();
        var starttime = time + " 8:40";
        var endtime = time + " 9:40";
        var stime = new Date(starttime.replace("-", "/").replace("-", "/"));
        var etime = new Date(endtime.replace("-", "/").replace("-", "/"));

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5.下边款虚线

border-bottom: 1px dashed #666;

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5.圆角、子间距

    border-radius: 19px;
    letter-spacing: 2px;

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6.MVC跳转列表，打开新窗口

 <a href="/Desktop/Scheduling"
                target="_blank"><span class="<%=btnclass %>"><%=seeAll %></span></a>

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7.sql为账户指定默认数据库

8.Regex正则

 Regex reg = new Regex(@"^[0-9]*$");
                sid = !reg.IsMatch(t) ? "" : sid;

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IsMatch():指定的输入字符串中找到的匹配项,找到返回true,否则返回false.

9.允许为null

public ActionResult Scheduling(DateTime? StartTime, DateTime? EndTime, string sid)
        {
            DateTime stime = StartTime == null ? DateTime.Now.AddDays(-1) : DateTime.Parse(StartTime.ToString());
            DateTime etime = EndTime == null ? DateTime.Now.AddDays(1) : DateTime.Parse(EndTime.ToString());

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10.??

string strParam = Request.Params["param"];
if ( strParam== null )
{
    strParam= "";
}

string strParam=
  Request.Params["param"] == null ? "": Request.Params["param"];

//如果左边为null，取所赋值??右边的
//比如int y = x ?? -1 如果x为空，那么y的值为-1.
string strParam= Request.Params["param"]?? "";

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另外还有”？（单问号）“修饰符，是System.Nullable的缩写形式，比如int?代表是可空的整形，

例如：int? a = 1 或者 int? b=null