C# 判断时间段是否相交的实现方法
1. 判断两个起止时间是否相交：
public static bool IsTimeBetween(TimeSpan input, TimeSpan start, TimeSpan end, bool fromInclusice, bool toInclusive)
{
//http://stackoverflow测试数据/questions/592248/how-can-i-check-if-the-current-time-is-between-in-a-time-frame
// see if start comes before end
if (end < start)
{
return
((toInclusive && (input <= end)) || (!toInclusive && (input < end)))
||
((fromInclusice && (input >= start)) || (!fromInclusice && (input > start)));
}
else
{
return
((fromInclusice && (input >= start)) || (!fromInclusice && (input > start)))
&&
((toInclusive && (input <= end)) || (!toInclusive && (input < end)));
}
}
2. 传入起止时间的表达式，判断与已知时间段的交集，生成Mongo查询：
public IMongoQuery GetMongoQueryIntersectWith<TCollection>(
Expression<Func<TCollection, DateTime>> fromExp,
Expression<Func<TCollection, DateTime>> toExp)
{
var rangeTo = Query.And(Query<TCollection>.GTE(toExp, To), Query<TCollection>.LTE(fromExp, To));
var rangeFrom = Query.And(Query<TCollection>.GTE(toExp, From), Query<TCollection>.LTE(fromExp, From));
var rangeQuery = Query.Or(rangeTo, rangeFrom,
Query.And(Query<TCollection>.GTE(fromExp, From),Query<TCollection>.LTE(toExp, To)));
return rangeQuery;
}
其中From和To为两个时间属性
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原文链接：http://blog.csdn.net/lan_liang/article/details/44134425
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