Question

我有一系列记录。有两个拳击手，比赛日期，位置等... 我想将它们分开几个月并将它们组合在一起。目前我有以下内容。它在一定程度上起作用。这将在未来寻找匹配日期。也就是今年，每个月（1-12）逐步完成并查找该日期范围内的任何匹配项。

将它放入一个漂亮的int字典中，可枚举其中int是月份，而enumberable是该月份的匹配集合

//Build the matches list by Months!!!
var summarysDic = new Dictionary<int, IEnumerable<MatchSummary>>();
for (int i = 1; i <= 12; i++)
{
    var MatchesOfMonth = matches.Where(x => x.MatchDate.Value.Year == DateTime.Now.Year &&
                        x.MatchDate.Value.Month == i &&
                        !x.HasResult() &&
                        x.MatchDate.Value > DateTime.Now);
    if (MatchesOfMonth.Count() > 0)
    {
        summarysDic.Add(i, MatchesOfMonth.OrderBy(x => x.MatchDate).Select(x=> new MatchSummary(x)).ToArray());
    }
}

问题是这个目前只涉及今年。我想改为使其适用于“未来6个月”，但这当然也必须在新的一年里工作！

这是最好/最干净的方法吗？

提前感谢！

P.S在附注中我还没有找到如何简单地做DateTime.Now.Month.add（1）例如（因为我将始终从当前日期开始！）

-----完成的代码！-----

//Build the matches list by Months!!!
        var summarysDic = new Dictionary<string, IEnumerable<MatchSummary>>();
        for (int i = 1; i <= 12; i++)
        {
            var checkDate = DateTime.Now.AddMonths(i);
            var MatchesOfMonth = matches.Where(x => x.MatchDate.Value.Month == checkDate.Month &&
                                x.MatchDate.Value.Year == checkDate.Year &&
                                !x.HasResult() &&
                                x.MatchDate.Value > DateTime.Now);
            if (MatchesOfMonth.Count() > 0)
            {
                var firstMatchDate = MatchesOfMonth.First().MatchDate.Value;
                if (firstMatchDate.Year != DateTime.Now.Year)
                {
                    summarysDic.Add(firstMatchDate.ToString("MMMM yyyy"), MatchesOfMonth.OrderBy(x => x.MatchDate).Select(x => new MatchSummary(x)).ToArray());
                }
                else
                {
                    summarysDic.Add(firstMatchDate.ToString("MMMM"), MatchesOfMonth.OrderBy(x => x.MatchDate).Select(x => new MatchSummary(x)).ToArray());
                }

            }
        }

Answer 1

我相信你可以得到你想要的东西，而不会显着修改你的算法：

//Build the matches list by Months!!!
var summarysDic = new Dictionary<int, IEnumerable<MatchSummary>>();
for (int i = 0; i <= 6; i++)
{
    var checkDate = DateTime.Now.AddMonths(i);
    var MatchesOfMonth = matches.Where(x => x.MatchDate.Value.Year == checkDate.Year &&
                        x.MatchDate.Value.Month == checkDate.Month &&
                        !x.HasResult() &&
                        x.MatchDate.Value > DateTime.Now);
    if (MatchesOfMonth.Count() > 0)
    {
        summarysDic.Add(i, MatchesOfMonth.OrderBy(x => x.MatchDate).Select(x=> new MatchSummary(x)).ToArray());
    }
}

Answer 2

DateTime.Now.AddMonth(1)出了什么问题？

var MatchesOfMonth = matches.Where(x => x.MatchDate.Value <= DateTime.Now.AddMonth(i)
                                   && !x.HasResult() 
                                   && x.MatchDate.Value > DateTime.Now);

我没有编译过，但它应该只用相当小的推文来运行......

将记录分成mvc的个别月份

2 个答案: