Files to listbox need ordering by file creation date/time

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I have the following that populates a listbox but I need the files ordering by creation date/time first. Newest top of the list. Sounds easy enough but I just cant figure out how. Any help much appreciated! Thanks in advance

VB

For Each file As String In Directory.GetFiles("C:\ProgramData\Folder\Temp\", "*.pdf")

    lstPDFs.Items.Add(Path.GetFileNameWithoutExtension(file))

Next

What I have tried:

Googled but cant seem to get my head around it

Posted 27-Sep-18 8:04am

richardyork

Updated 27-Sep-18 11:48am

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MadMyche 27-Sep-18 15:06pm

What you are looking for is the filesysteminfo.creationtime property, and utilize in a LINQ .Sort method

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littleGreenDude · Answer 1 · 2018-09-27T09:19:00

How about this:

List<FileInfo> lstFiles = new List<FileInfo>();
foreach (var file in Directory.GetFiles(@"C:\yourfolder\", "*.pdf"))
{
    FileInfo fInfo = new FileInfo(file);
    lstFiles.Add(fInfo);
}

var lstPDFs = lstFiles.OrderBy(f => f.CreationTime).Select(f => f.FullName).ToList();

Sorry, just noticed this is a VB.Net question. Not my strong suit, something like this:

Dim lstFiles As List(Of FileInfo) = New List(Of FileInfo)()

For Each file In Directory.GetFiles("C:\yourfolder\", "*.pdf")
    Dim fInfo As FileInfo = New FileInfo(file)
    lstFiles.Add(fInfo)
Next

Dim lstPDFs = lstFiles.OrderBy(Function(f) f.CreationTime).[Select](Function(f) f.FullName).ToList()

MadMyche · Answer 2 · 2018-09-27T11:49:00

Sorry I didn't have the time earlier when I posted my comment... here is the quick proof of concept console app utilizing LINQ.

VB

Dim FileList = New DirectoryInfo("C:\FolderName\").GetFiles("*.pdf")
Dim DisplayList = From EachFile In FileList Order By EachFile.CreationTime

For Each DisplayFile In DisplayList
  Console.WriteLine(DisplayFile.Name)
Next

Could probably be simplified further but like 'LittleGreenDude' VB is not my forte

Files to listbox need ordering by file creation date/time

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