FileSystemObject Sample Code_ASP Tutorial

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'

' FileSystemObject sample code

'

'Copyright 1998 Microsoft Corporation. All rights reserved.

'

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Option Explicit

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'

The following is the quoted content:

'

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'

' Some easily obtainable global variables

'

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Dim TabStop

Dim NewLine

Const TestDrive = "C"

Const TestFilePath = "C:Test"

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'

' Constant returned by Drive.DriveType

'

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Const DriveTypeRemovable = 1

Const DriveTypeFixed = 2

Const DriveTypeNetwork = 3

Const DriveTypeCDROM = 4

Const DriveTypeRAMDisk = 5

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'

' Constant returned by File.Attributes

'

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Const FileAttrNormal = 0

Const FileAttrReadOnly = 1

Const FileAttrHidden = 2

Const FileAttrSystem = 4

Const FileAttrVolume = 8

Const FileAttrDirectory = 16

Const FileAttrArchive = 32

Const FileAttrAlias ​​= 64

Const FileAttrCompressed = 128

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'

'The constant used to open the file

'

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Const OpenFileForReading = 1

Const OpenFileForWriting = 2

Const OpenFileForAppending = 8

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'

' ShowDriveType

'

' Purpose:

'

' Generate a string that describes the drive type of a given Drive object.

'

' Demonstrate the following

'

' - Drive.DriveType

'

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Function ShowDriveType(Drive)

Dim S

Select Case Drive.DriveType

Case DriveTypeRemovable

S = "Removable"

Case DriveTypeFixed

S = "Fixed"

Case DriveTypeNetwork

S = "Network"

Case DriveTypeCDROM

S = "CD-ROM"

Case DriveTypeRAMDisk

S = "RAM Disk"

Case Else

S = "Unknown"

End Select

ShowDriveType = S

End Function

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'

' ShowFileAttr

'

' Purpose:

'

' Generate a string that describes the properties of a file or folder.

'

' Demonstrate the following

'

' - File.Attributes

' - Folder.Attributes

'

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Function ShowFileAttr(File) ' File can be a file or a folder

Dim S

Dim Attr

Attr = File.Attributes

If Attr = 0 Then

ShowFileAttr = "Normal"

Exit Function

End If

If Attr And FileAttrDirectory Then S = S & "Directory"

If Attr And FileAttrReadOnly Then S = S & "Read-Only"

If Attr And FileAttrHidden Then S = S & "Hidden"

If Attr And FileAttrSystem Then S = S & "System"

If Attr And FileAttrVolume Then S = S & "Volume"

If Attr And FileAttrArchive Then S = S & "Archive"

If Attr And FileAttrAlias ​​Then S = S & "Alias"

If Attr And FileAttrCompressed Then S = S & "Compressed"

ShowFileAttr = S

End Function

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'

' GenerateDriveInformation

'

' Purpose:

'

' Generate a string that describes the current state of the available drive.

'

' Demonstrate the following

'

' - FileSystemObject.Drives

' - Iterating the Drives collection

' - Drives.Count

' - Drive.AvailableSpace

' - Drive.DriveLetter

' - Drive.DriveType

' - Drive.FileSystem

' - Drive.FreeSpace

' - Drive.IsReady

' - Drive.Path

' - Drive.SerialNumber

' - Drive.ShareName

' - Drive.TotalSize

' - Drive.VolumeName

'

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Function GenerateDriveInformation(FSO)

Dim Drives

Dim Drive

Dim S

Set Drives = FSO.Drives

S = "Number of drives:" & TabStop & Drives.Count & NewLine & NewLine

' Construct the first line of the report.

S = S & String(2, TabStop) & "Drive"

S = S & String(3, TabStop) & "File"

S = S & TabStop & "Total"

S = S & TabStop & "Free"

S = S & TabStop & "Available"

S = S & TabStop & "Serial" & NewLine

' Construct the second line of the report.

S = S & "Letter"

S = S & TabStop & "Path"

S = S & TabStop & "Type"

S = S & TabStop & "Ready?"

S = S & TabStop & "Name"

S = S & TabStop & "System"

S = S & TabStop & "Space"

S = S & TabStop & "Space"

S = S & TabStop & "Space"

S = S & TabStop & "Number& NewLine

' Separate rows.

S = S & String(105, "-") & NewLine

For Each Drive In Drives

S = S & Drive.DriveLetter

S = S & TabStop & Drive.Path

S = S & TabStop & ShowDriveType(Drive)

S = S & TabStop & Drive.IsReady

If Drive.IsReady Then

If DriveTypeNetwork = Drive.DriveType Then

S = S & TabStop & Drive.ShareName

Else

S = S & TabStop & Drive.VolumeName

End If

S = S & TabStop & Drive.FileSystem

S = S & TabStop & Drive.TotalSize

S = S & TabStop & Drive.FreeSpace

S = S & TabStop & Drive.AvailableSpace

S = S & TabStop & Hex(Drive.SerialNumber)

End If

S = S & NewLine

Next

GenerateDriveInformation = S

End Function

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'

' GenerateFileInformation

'

' Purpose:

'

' Generate a string to describe the current state of the file.

'

' Demonstrate the following

'

' - File.Path

' - File.Name

' - File.Type

' - File.DateCreated

' - File.DateLastAccessed

' - File.DateLastModified

' - File.Size

'

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Function GenerateFileInformation(File)

Dim S

S = NewLine & "Path:" & TabStop & File.Path

S = S & NewLine & "Name:" & TabStop & File.Name

S = S & NewLine & "Type:" & TabStop & File.Type

S = S & NewLine & "Attribs:" & TabStop & ShowFileAttr(File)

S = S & NewLine & "Created:" & TabStop & File.DateCreated

S = S & NewLine & "Accessed:" & TabStop & File.DateLastAccessed

S = S & NewLine & "Modified:" & TabStop & File.DateLastModified

S = S & NewLine & "Size& TabStop & File.Size & NewLine

GenerateFileInformation = S

End Function

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'

' GenerateFolderInformation

'

' Purpose:

'

' Generate a string to describe the current state of the folder.

'

' Demonstrate the following

'

' - Folder.Path

' - Folder.Name

' - Folder.DateCreated

' - Folder.DateLastAccessed

' - Folder.DateLastModified

' - Folder.Size

'

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Function GenerateFolderInformation(Folder)

Dim S

S = "Path:" & TabStop & Folder.Path

S = S & NewLine & "Name:" TabStop & Folder.Name

S = S & NewLine & "Attribs:" & TabStop & ShowFileAttr(Folder)

S = S & NewLine & "Created:" & TabStop & Folder.DateCreated

S = S & NewLine & "Accessed:" & TabStop & Folder.DateLastAccessed

S = S & NewLine & "Modified:" & TabStop & Folder.DateLastModified

S = S & NewLine & "Size:" & TabStop & Folder.Size & NewLine

GenerateFolderInformation = S

End Function

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'

' GenerateAllFolderInformation

'

' Purpose:

'

' Generate a string to describe the current status of a folder and all files and subfolders.

'

' Demonstrate the following

'

' - Folder.Path

' - Folder.SubFolders

' - Folders.Count

'

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Function GenerateAllFolderInformation(Folder)

Dim S

Dim SubFolders

Dim SubFolder

Dim Files

Dim File

S = "Folder:" & TabStop & Folder.Path & NewLine & NewLine

Set Files = Folder.Files

If 1 = Files.Count Then

S = S & "There is 1 file& & NewLine

Else

S = S & " There are & Files.Count & " files" & NewLine

End If

If Files.Count <> 0 Then

For Each File In Files

S = S & GenerateFileInformation(File)

Next

End If

Set SubFolders = Folder.SubFolders

If 1 = SubFolders.Count Then

S = S & NewLine & "There is 1 sub folder& & NewLine & NewLine

Else

S = S & NewLine & " There are & SubFolders.Count & " subfolders& & NewLine & NewLine

End If

If SubFolders.Count <> 0 Then

For Each SubFolder In SubFolders

S = S & GenerateFolderInformation(SubFolder)

Next

S = S & NewLine

For Each SubFolder In SubFolders

S = S & GenerateAllFolderInformation(SubFolder)

Next

End If

GenerateAllFolderInformation = S

End Function

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'

' GenerateTestInformation

'

' Purpose:

'

' Generate a string to describe the current status of the C:Test folder and all files and subfolders.

'

' Demonstrate the following

'

' - FileSystemObject.DriveExists

' - FileSystemObject.FolderExists

' - FileSystemObject.GetFolder

'

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Function GenerateTestInformation(FSO)

Dim TestFolder

Dim S

If Not FSO.DriveExists(TestDrive) Then Exit Function

If Not FSO.FolderExists(TestFilePath) Then Exit Function

Set TestFolder = FSO.GetFolder(TestFilePath)

GenerateTestInformation = GenerateAllFolderInformation(TestFolder)

End Function

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'

' DeleteTestDirectory

'

' Purpose:

'

' Clean the test directory.

'

' Demonstrate the following

'

' - FileSystemObject.GetFolder

' - FileSystemObject.DeleteFile

' - FileSystemObject.DeleteFolder

' - Folder.Delete

' - File.Delete

'

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Sub DeleteTestDirectory(FSO)

Dim TestFolder

Dim SubFolder

Dim File

<a name=DeleteFile>

' There are two ways to delete a file:

FSO.DeleteFile(TestFilePath &amp; &quot;BeatlesOctopusGarden.txt&quot;)

Set File = FSO.GetFile(TestFilePath &amp; &quot;BeatlesBathroomWindow.txt&quot;)

File.Delete

' There are two ways to delete a folder:

FSO.DeleteFolder(TestFilePath &amp; &quot;Beatles&quot;)

FSO.DeleteFile(TestFilePath &amp; &quot;ReadMe.txt&quot;)

Set TestFolder = FSO.GetFolder(TestFilePath)

TestFolder.Delete

End Sub

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'

' CreateLyrics

'

' Purpose:

'

' Create two text files in the folder.

'

'

' Demonstrate the following

'

' - FileSystemObject.CreateTextFile

' - TextStream.WriteLine

' - TextStream.Write

' - TextStream.WriteBlankLines

' - TextStream.Close

'

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Sub CreateLyrics(Folder)

Dim TextStream

</a><a name=CreateTextFile>

Set TextStream = Folder.CreateTextFile(&quot;OctopusGarden.txt&quot;)

</a><a name=WriteToFile>

TextStream.Write(&quot;Octopus' Garden&quot;) ' Note that this statement does not add line wraps to the file.

TextStream.WriteLine(&quot;(by Ringo Starr)&quot;)

TextStream.WriteBlankLines(1)

TextStream.WriteLine(&quot;I'd like to be under the sea in an octopus' garden in the shade,&quot;)

TextStream.WriteLine(&quot;He'd let us in, knows where we've been -- in his octopus' garden in the shade.&quot;)

TextStream.WriteBlankLines(2)

</a><a name=Close>

TextStream.Close

Set TextStream = Folder.CreateTextFile(&quot;BathroomWindow.txt&quot;)

TextStream.WriteLine(&quot;She Came In Through The Bathroom Window (by Lennon/McCartney)&quot;)

TextStream.WriteLine(&quot;&quot;)

TextStream.WriteLine("She came in through the bathroom window protected by a silver spoon")

TextStream.WriteLine(&quot;But now she sucks her thumb and wanders by the banks of her own lagoon&quot;)

TextStream.WriteBlankLines(2)

TextStream.Close

End Sub

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'

' GetLyrics

'

' Purpose:

'

' Show the contents of the lyrics file.

'

'

' Demonstrate the following

'

' - FileSystemObject.OpenTextFile

' - FileSystemObject.GetFile

' - TextStream.ReadAll

' - TextStream.Close

' - File.OpenAsTextStream

' - TextStream.AtEndOfStream

' - TextStream.ReadLine

'

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Function GetLyrics(FSO)

Dim TextStream

Dim S

Dim File

'There are multiple ways to open a text file, and multiple ways to read data from the file.

' Here are two ways to open and read files:

Set TextStream = FSO.OpenTextFile(TestFilePath &amp; &quot;BeatlesOctopusGarden.txt&quot;, OpenFileForReading)

</a><a name=ReadFromFile>

S = TextStream.ReadAll &amp; NewLine &amp; NewLine

TextStream.Close

Set File = FSO.GetFile(TestFilePath &amp; &quot;BeatlesBathroomWindow.txt&quot;)

Set TextStream = File.OpenAsTextStream(OpenFileForReading)

Do While Not TextStream.AtEndOfStream

S = S &amp; TextStream.ReadLine &amp; NewLine

Loop

TextStream.Close

GetLyrics = S

End Function

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'

'BuildTestDirectory

'

' Purpose:

'

' Create a directory hierarchy to demonstrate FileSystemObject.

'

' Create a hierarchical structure in this order:

'

' C:Test

' C:TestReadMe.txt

' C:TestBeatles

' C:TestBeatlesOctopusGarden.txt

' C:TestBeatlesBathroomWindow.txt

'

'

' Demonstrate the following

'

' - FileSystemObject.DriveExists

' - FileSystemObject.FolderExists

' - FileSystemObject.CreateFolder

' - FileSystemObject.CreateTextFile

' - Folders.Add

' - Folder.CreateTextFile

' - TextStream.WriteLine

' - TextStream.Close

'

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</a><a name=FolderInfo>

Function BuildTestDirectory(FSO)

Dim TestFolder

Dim SubFolders

Dim SubFolder

Dim TextStream

' Excludes (a) the drive does not exist, or (b) the directory to be created already exists.

If Not FSO.DriveExists(TestDrive) Then

BuildTestDirectory = False

Exit Function

End If

If FSO.FolderExists(TestFilePath) Then

BuildTestDirectory = False

Exit Function

End If

Set TestFolder = FSO.CreateFolder(TestFilePath)

Set TextStream = FSO.CreateTextFile(TestFilePath &amp; &quot;ReadMe.txt&quot;)

TextStream.WriteLine(&quot;My song lyrics collection&quot;)

TextStream.Close

Set SubFolders = TestFolder.SubFolders

Set SubFolder = SubFolders.Add("Beatles")

CreateLyrics SubFolder

BuildTestDirectory = True

End Function

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'

' Main program

'

' First, it creates a test directory, as well as some subfolders and files.

' Then, it dumps some information about the available disk drives and test directories,

' Finally, clear the test directory and all its contents.

'

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Sub Main

Dim FSO

' Set up global variables.

TabStop = Chr(9)

NewLine = Chr(10)

</a><a name=CreateFSO>

Set FSO = CreateObject(&quot;Scripting.FileSystemObject&quot;)

If Not BuildTestDirectory(FSO) Then

Print "Test directory already exists or cannot be created. Cannot continue."

Exit Sub

End If

Print GenerateDriveInformation(FSO) &amp; NewLine &amp; NewLine

Print GenerateTestInformation(FSO) &amp; NewLine &amp; NewLine

Print GetLyrics(FSO) &amp; NewLine &amp; NewLine

DeleteTestDirectory(FSO)

End Sub