请允许我事先承认我可能没有正确地提出这个问题,因为我发现你无法在GroupBy
值上使用DateTime
,但我是我已经在Objective-C工作了四年,而且我还没有完全使用过LINQ。这是我目前的代码:
var filteredEvents = events.Where(e => e.EventDate < DateTimeOffset.Now.AddMonths(1)).GroupBy(e => e.EventStatusKey);
在此代码中,events
是匿名类型的IEnumerable
,由四个字段组成,包括EventDate
(DateTime
)和EventStatusKey
({ {1}})。
目前,上述代码会针对事件状态enum
和Ready
返回两个组。但是,我还需要根据日期细分InProgress
个事件。具体来说,我需要针对Ready
个事件的单独组,其中:
Ready
和
EventDate >= DateTime.Date.Today
。
答案 0 :(得分:0)
当然,你可以这样做:
.testWrapOverflowFade {
overflow: hidden;
position: relative;
height: 2.4em; /* NOL = height in this class/height in after class. Here it is 2.4/1.2 = 2. Change it to 3.6em for display 3 lines. */
}
.testWrapOverflowFade:after {
content: "";
text-align: right;
position: absolute;
bottom: 0;
right: 0;
width: 10%;
height: 1.2em;
background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1) 50%);
background: -moz-linear-gradient(left, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1) 50%);
background: -o-linear-gradient(left, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1) 50%);
background: linear-gradient(to right, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1) 50%);
}
<div class="testWrapOverflowFade">This is a long text this is a long text 2 this is a long text 3 this is a long text 4 this is a long text 5 this is a long text6 this is a long text7 this is a long text 8 this is a long text 9 this is a long text 10 this is a long text 11 this is a long text12 </div>
这将分组所有状态以及是否在今天之前。然后你可以像这样折叠组(例如当它的InProgress时):
var filteredEvents =
events.Where(e => e.EventDate < DateTimeOffset.Now.AddMonths(1))
.GroupBy(e => new {
e.EventStatusKey,
BeforeToday = e.EventDate < DateTime.Today
});
这将使团体变得扁平化,基本上忽略了“今天之前”。标志。