按照按顺序排序按c＃中的创建日期和文件时间排序 [英] Sorting in Accesending Order By creation date and Time of File in c#

问题描述

嗨



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按照开始顺序排序按创建日期和文件时间在c＃中。

GetFiles（）。OrderBy（p => p.CreationTime.ToString（yyyy-MM-dd HH：mm：ss.fff，CultureInfo.InvariantCulture））

i am使用此代码

但是我的创作时间相同

如12.44

12.44

hi

please haelp me on this
Sorting in Accesending Order By creation date and Time of File in c#.
GetFiles().OrderBy(p => p.CreationTime.ToString("yyyy-MM-dd HH:mm:ss.fff", CultureInfo.InvariantCulture))
i am using this code
but iam getting Creation time same
like 12.44
12.44

推荐答案

如果您想按日期订购文件，为什么要将日期转换为字符串，然后尝试按顺序排序？



只需订购直接DateTime字段，并且无需转换。



至于你的奇怪位：

但是我得到了创造时间相同

如12.44

12.44是的，你会 - 如果两个文件创建的时间相似，则OrderBy不会删除它们。如果你想删除具有相同创建时间的文件，你也必须对它们使用Distinct - 但这意味着创建一个EqualityComparer：

http://msdn.microsoft.com/en-us/library/bb338049（v = vs.110）的.aspx [ ^ ] - 并且无法确定哪两个文件是保留在输出列表中的文件。

If you want to order files by date, why do you convert the date to a string, and then try to order by that?

Just order by the DateTime field directly, and there is no need to convert.

As for your odd bit:
"but iam getting Creation time same
like 12.44
12.44"Yes, you will - if two files are created as a similar time, OrderBy does not remove them. If you want to remove files with the same creation time, you will have to use Distinct on them as well - but that means creating an EqualityComparer:
http://msdn.microsoft.com/en-us/library/bb338049(v=vs.110).aspx[^] - and there is no way to decide which of the two files is the one to keep in the output list.

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