c# - Get all files in directory and subdirectory after date range -

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• getting files creation date in .net 4 answers

is there way files in directory , subdirectories after date range?

i know directory.getfiles() can iterate folders not give me access file object in can if statement on.

you use file.getcreationtime , searchoption.alldirectories, example:

var allfilesin2015 = directory.enumeratefiles("dir-path", "*.*", system.io.searchoption.alldirectories)     .where(path => file.getcreationtime(path).year == 2015)     .tolist(); 

you use fileinfos , it's properties creationtime or lastaccesstime:

directoryinfo dir = new directoryinfo("dir-path"); var allfileinfosin2015 = dir.enumeratefiles("*.*", system.io.searchoption.alldirectories)     .where(fi => fi.creationtime.year == 2015)     .tolist(); 

i use enumeratefiles since more efficient in case. not need load files memory before can start processing them.

quote:

the enumeratefiles , getfiles methods differ follows: when use enumeratefiles, can start enumerating collection of names before whole collection returned; when use getfiles, must wait whole array of names returned before can access array. therefore, when working many files , directories, enumeratefiles can more efficient.