problems with C# equivalent in VB.NET Folder & File Class

[jeepzhen]

Hi experts, I have a problem when converting vb codes to c# codes. What library should I import? Anyone can tell me how to convert below codes into c# format?

Thank in advance.

Private Sub Filechecking(ByRef fso As Scripting.FileSystemObject, ByVal iDataKeepDays As Integer, ByVal tmpPath As String)
        Dim Folder As Folder
        Set Folder = fso.GetFolder(tmpPath)
        Dim f As File
 
        For Each f In Folder.Files
 
            If DateDiff("D", f.DateLastModified, Now) > iDataKeepDays Then
                DoEvents
               fso.DeleteFile f.Path
           End If
       Next
 
       Set f = Nothing
       Set Folder = Nothing
 
End Sub
 

[Luuk]

Because i'm learning c# meself, I tried to write it for you.
Well, not completely, but to get you started... ;)

        static void Main(string[] args)
        {
            string TempPath = @"c:\temp\";
            int iDataKeepDays = 14;
            RemoveOlder(TempPath, iDataKeepDays);
 
            Console.ReadLine();
        }
 
        static void RemoveOlder(string TempPath, int days)
        {
            foreach (string file in Directory.GetFiles(TempPath))
            {
                DateTime lastWriteTime = File.GetLastWriteTime(file);
                int age = (DateTime.Now - lastWriteTime).Days;
                Console.WriteLine("File: {0} is {1} days old", file, age);
            }
        }
 

A quicker example (on my test this works almost twice as fast

   static void RemoveOlder2(string TempPath, int days)
        {
            string[] files = Directory.GetFiles(TempPath);
            var result = files.Where(file => (DateTime.Now - File.GetLastWriteTime(file)).Days > days);
            foreach (var file in result)
            {
                DateTime lastWriteTime = File.GetLastWriteTime(file);
                int age = (DateTime.Now - lastWriteTime).Days;
                Console.WriteLine("File: {0} is {1} days old", file, age);
            }
        }