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vb.net: list 10 most recent files

Posted on 2004-05-01
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Last Modified: 2012-08-14
I have a directory with a lot of .log files, one for each day

how do I list just the 10 most recent files by file creation date, or, in other words, the files for the last 10 days?
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Question by:kapcreations
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Expert Comment

by:Dabas
ID: 10969058
Hi kapcreations:
I would start with code like this:

    Dim DirInfo As New System.IO.DirectoryInfo("")
    Dim Files() As System.IO.FileInfo = DirInfo.GetFiles("*.log")
    For Each f As IO.FileInfo In Files
         Save(f.Name, f.CreationTime())
    Next

Within Save you can create a SortedList and then keep only the most recent 10


Dabas
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Author Comment

by:kapcreations
ID: 10969375
huh?  I have never done a sorted list before...
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Dabas earned 250 total points
ID: 10969428
kapcreations:
Ignore the For Each loop above and use this code instead:

        Dim sl As New SortedList
        For Each File As IO.FileInfo In Files
            sl.Add(File.CreationTime, File.Name) 'Add file to SortedList. SortKey is CreationTime
        Next

        Dim Count As Integer = 0
        For Each File As IO.FileInfo In sl 'Now show the sorted list in correct order
            MessageBox.Show(file.Name & " " & file.CreationTime.tostring)
        Next


Dabas
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