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ASP Object

ASP Response Object

The ASP Response object is used to send output to the user from the server.

Examples

Write text with ASP

This example demonstrates how to write text with ASP.

Format text with HT! ta"s in ASPThis example demonstrates how to combine text and HT! ta"s with ASP.

Redirect the user to a different #R!

This example demonstrates how to redirect the user to a different #R!.

Show a random lin$ 

This example demonstrates a lin$% each time &ou load the pa"e% it will displa& one of

two lin$s' W(Schools.com) *R Refsnesdata.no) There is a +,- chance for each of

them.

ontrollin" the buffer This example demonstrates how &ou can control the buffer.

lear the buffer 

This example demonstrates how &ou can clear the buffer.

/nd a script in the middle of processin" and return the result

This example demonstrates how to end a script in the middle of processin".

Set how man& minutes a pa"e will be cached in a browser before it expires

This example demonstrates how to specif& how man& minutes a pa"e will be cached

in a browser before it expires.

Set a date0time when a pa"e cached in a browser will expire

This example demonstrates how to specif& a date0time a pa"e cached in a browser will

expire.

hec$ if the user is still connected to the server 

This example demonstrates how to chec$ if a user is disconnected from the server.

Set the t&pe of content

This example demonstrates how to specif& the t&pe of content.

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Set the name of the character set

This example demonstrates how to specif& the name of the character set.

Response Object 

The ASP Response object is used to send output to the user from the server. 1ts

collections% properties% and methods are described below'

Collections

Collection Description

oo$ies Sets a coo$ie value. 1f the coo$ie does not exist% it will be

created% and ta$e the value that is specified

Properties

Property Description

2uffer  Specifies whether to buffer the pa"e output or not

acheontrol Sets whether a prox& server can cache the output "enerated b&

ASP or not

harset Appends the name of a character3set to the content3t&pe header

in the Response object

ontentT&pe Sets the HTTP content t&pe for the Response object

/xpires Sets how lon" 4in minutes5 a pa"e will be cached on a browser

 before it expires

/xpiresAbsolute Sets a date and time when a pa"e cached on a browser will

expire

1slientonnected 1ndicates if the client has disconnected from the server 

Pics Appends a value to the P1S label response header 

Status Specifies the value of the status line returned b& the server 

Methods

Method   Description

AddHeader  Adds a new HTTP header and a value to the HTTP response

AppendTo!o" Adds a strin" to the end of the server lo" entr&

2inar&Write Writes data directl& to the output without an& character

conversion

lear  lears an& buffered HT! output

/nd Stops processin" a script% and returns the current result

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Flush Sends buffered HT! output immediatel&

Redirect Redirects the user to a different #R!

Write Writes a specified strin" to the output

ASP Request Object

The ASP Re6uest object is used to "et information from the user.

QueryString Collection Examples

Send 6uer& information when a user clic$s on a lin$ This example demonstrates how to send some extra 6uer& information to a pa"e

within a lin$% and retrieve that information on the destination pa"e 4which is% in this

example% the same pa"e5.

A 7uer&Strin" collection in its simplest use

This example demonstrates how the QueryString collection retrieves the values from

a form. The form uses the 8/T method% which means that the information sent is

visible to ever&bod& 4in the address field5. The 8/T method also limits the amount of

information that can be sent.

How to use information from forms

This example demonstrates how to use the values retrieved from a form. We use the

QueryString collection. The form uses the "et method.

ore information from a form

This example demonstrates what the QueryString contains if several input fields

have the same name. 1t shows how to separate input fields with e6ual names from

each other. 1t also shows how to use the Count $e&word to count the 9name9 propert&.

The form uses the "et method.

Form Collection Examples

A form collection in its simplest use

This example demonstrates how the Form collection retrieves the values from a form.

The form uses the P*ST method% which means that the information sent is invisible to

others% and it has no limits 4&ou can send a lar"e amount of information5.

How to use information from forms

This example demonstrates how to use the values retrieved from a form. We use the

Form collection. The form uses the post method.

ore information from a formThis example demonstrates what the Form collection contains if several input fields

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have the same name. 1t shows how to separate input fields with e6ual names from

each other. 1t also shows how to use the Count $e&word to count the 9name9 propert&.

The form uses the post method.

A form with radio buttons

This example demonstrates how to interact with the user throu"h radio buttons% withthe Form collection. The form uses the post method.

A form with chec$boxes

This example demonstrates how to interact with the user throu"h chec$boxes% with

the Form collection. The form uses the post method.

Other Examples

8et the server variables

This example demonstrates how to find out the visitors 4&ours5 browser t&pe% 1P

address% and more with the Server!ri!bles collection.

reate a welcome coo$ie

This example demonstrates how to create a Welcome oo$ie with the Coo"ies 

ollection.

Find the total number of b&tes the user sent

This example demonstrates how to use the #ot!l$ytes propert& to find out the total

number of b&tes the user sent in the Re6uest object.

Request Object 

When a browser as$s for a pa"e from a server% it is called a re6uest. The ASP Re6uest

object is used to "et information from the user. 1ts collections% properties% and methods

are described below'

Collections

Collection   Description

lientertificate ontains all the field values stored in the client certificate

oo$ies ontains all the coo$ie values sent in a HTTP re6uest

Form ontains all the form 4input5 values from a form that uses the

 post method

7uer&Strin" ontains all the variable values in a HTTP 6uer& strin"

Server:ariables ontains all the server variable values

Properties

Property   Description

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Total2&tes Returns the total number of b&tes the client sent in the bod& of

the re6uest

Methods

Method Description

2inar&Read Retrieves the data sent to the server from the client as part of a

 post re6uest and stores it in a safe arra&

ASP Applic!tion Object

A "roup of ASP files that wor$ to"ether to perform some purpose is called an

application. The Application object in ASP is used to tie these files to"ether.

 Application Object 

An application on the Web ma& be a "roup of ASP files. The ASP files wor$ to"ether

to perform some purpose. The Application object in ASP is used to tie these files

to"ether.

The Application object is used to store and access variables from an& pa"e% just li$e

the Session object. The difference is that A!! users share one Application object%while with Sessions there is one Session object for /AH user.

The Application object should hold information that will be used b& man& pa"es in

the application 4li$e database connection information5. This means that &ou can

access the information from an& pa"e. 1t also means that &ou can chan"e the

information in one place and the chan"es will automaticall& be reflected on all pa"es.

The Application object;s collections% methods% and events are described below'

Collections

Collection   Description

ontents ontains all the items appended to the application throu"h a

script command

Static*bjects ontains all the objects appended to the application with the

HT! <object= ta"

Methods

Method   Description

ontents.Remove >eletes an item from the ontents collection

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ontents.RemoveAll45 >eletes all items from the ontents collection

!oc$  Prevents other users from modif&in" the variables in the

Application object

#nloc$  /nables other users to modif& the variables in the

Application object 4after it has been loc$ed usin" the !oc$

method5

Events

%vent Description

Application?*n/nd *ccurs when all user sessions are over% and the application

ends

Application?*nStart *ccurs before the first new session is created 4when the

Application object is first referenced5

ASP Session Object

The Session object is used to store information about% or chan"e settin"s for a user

session. :ariables stored in the Session object hold information about one sin"le user%

and are available to all pa"es in one application.

Examples

Set and return the !1>

This example demonstrates the 9!1>9 propert&. This propert& sets or returns an

inte"er that specifies a location or re"ion. ontents li$e date% time% and currenc& will

 be displa&ed accordin" to that location or re"ion.

Return the Session1>

This example demonstrates the 9Session1>9 propert&. This propert& returns a uni6ue

id for each user. The id is "enerated b& the server.

A session;s timeout

This example demonstrates the 9Timeout9 propert&. This example sets and returns the

timeout 4in minutes5 for the session.

Session Object 

When &ou are wor$in" with an application% &ou open it% do some chan"es and then

&ou close it. This is much li$e a Session. The computer $nows who &ou are. 1t $nowswhen &ou start the application and when &ou end. 2ut on the internet there is one

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 problem' the web server does not $now who &ou are and what &ou do because the

HTTP address doesn;t maintain state.

ASP solves this problem b& creatin" a uni6ue coo$ie for each user. The coo$ie is sent

to the client and it contains information that identifies the user. This interface is called

the Session object.

The Session object is used to store information about% or chan"e settin"s for a user

session. :ariables stored in the Session object hold information about one sin"le user%

and are available to all pa"es in one application. ommon information stored in

session variables are name% id% and preferences. The server creates a new Session

object for each new user% and destro&s the Session object when the session expires.

The Session object;s collections% properties% methods% and events are described below'

Collections

Collection Description

ontents ontains all the items appended to the session throu"h a

script command

Static*bjects ontains all the objects appended to the session with the

HT! <object= ta"

Properties

Property   Description

odePa"e Specifies the character set that will be used when

displa&in" d&namic content

!1> Sets or returns an inte"er that specifies a location or

re"ion. ontents li$e date% time% and currenc& will be

displa&ed accordin" to that location or re"ion

Session1> Returns a uni6ue id for each user. The uni6ue id is

"enerated b& the server 

Timeout Sets or returns the timeout period 4in minutes5 for the

Session object in this application

Methods

Method   Description

Abandon >estro&s a user session

ontents.Remove >eletes an item from the ontents collection

ontents.RemoveAll45 >eletes all items from the ontents collection

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Events

%vent Description

Session?*n/nd *ccurs when a session ends

Session?*nStart *ccurs when a session starts

ASP Server Object

The ASP Server object is used to access properties and methods on the server.

Examples

When was a file last modified@

hec$s when this file was last modified.

*pen a text file for readin"

This example opens the file 9Textfile.txt9 for readin".

Homemade hit counter 

This example reads a number from a file% adds to the number% and writes the number 

 bac$ to the file.

Server Object 

The ASP Server object is used to access properties and methods on the server. 1ts

 properties and methods are described below'

Properties

Property   Description

ScriptTimeout Sets or returns the maximum number of seconds a script can run before it is terminated

Methods

Method   Description

reate*bject reates an instance of an object

/xecute /xecutes an ASP file from inside another ASP file

8et!ast/rror45 Returns an ASP/rror object that describes the error condition

that occurred

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HT!/ncode Applies HT! encodin" to a specified strin"

apPath aps a specified path to a ph&sical path

Transfer  Sends 4transfers5 all the information created in one ASP file to a

second ASP file

#R!/ncode Applies #R! encodin" rules to a specified strin"

ASP%rror Object &ASP '()*

The ASP/rror object is used to displa& detailed information of an& error that occurs in

scripts in an ASP pa"e.

The ASError Object 

The ASP/rror object is implemented in ASP (., and it is onl& available in 11S+.

The ASP /rror object is used to displa& detailed information of an& error that occurs

in scripts in an ASP pa"e. The ASP/rror object is created when Server.8et!ast/rror is

called% so the error information can onl& be accessed b& usin" the Server.8et!ast/rror 

method.

The ASP/rror object;s properties are described below 4all properties are read3onl&5'

+ote, The properties below can onl& be accessed throu"h the Server.8et!ast/rror45

method.

Properties

Property   Description

ASPode Returns an error code "enerated b& 11S

ASP>escription Returns a detailed description of the error 4if the error is ASP3

related5

ate"or& Returns the source of the error 4was the error "enerated b& ASP@

2& a scriptin" lan"ua"e@ 2& an object@5

olumn Returns the column position within the file that "enerated the

error 

>escription Returns a short description of the error 

File Returns the name of the ASP file that "enerated the error 

!ine Returns the line number where the error was detected

 Bumber  Returns the standard * error code for the error 

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Source

Returns the actual source code of the line where the error

occurred

ASP FileSystemObject Object

The FileS&stem*bject object is used to access the file s&stem on the server.

Examples

>oes a specified file exist@

This example demonstrates how to first create a FileS&stem*bject *bject% and thenuse the File/xists method to chec$ if the file exists.

>oes a specified folder exist@

This example demonstrates how to use the Folder/xists method to chec$ if a folder

exists.

>oes a specified drive exist@

This example demonstrates how to use the >rive/xists method to chec$ if a drive

exists.

8et the name of a specified drive

This example demonstrates how to use the 8et>riveBame method to "et the name of

a specified drive.

8et the name of the parent folder of a specified path

This example demonstrates how to use the 8etParentFolderBame method to "et the

name of the parent folder of a specified path.

8et the file extension

This example demonstrates how to use the 8et/xtensionBame method to "et the file

extension of the last component in a specified path.

8et file name

This example demonstrates how to use the 8etFileBame method to "et the file name

of the last component in a specified path.

8et the base name of a file or folder 

This example demonstrates how to use the 8et2aseBame method to return the base

name of the file or folder% in a specified path.

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The FileSystemObject Object 

The FileS&stem*bject object is used to access the file s&stem on the server. This

object can manipulate files% folders% and director& paths. 1t is also possible to retrieve

file s&stem information with this object.

The followin" code creates a text file 4c'Ctest.txt5 and then writes some text to the file'

<-

dim fs%fname

set fsDServer.reate*bject49Scriptin".FileS&stem*bject95

set fnameDfs.reateTextFile49c'Ctest.txt9%true5

fname.Write!ine49Hello World)95

fname.lose

set fnameDnothin"

set fsDnothin"-=

The FileS&stem*bject object;s properties and methods are described below'

Properties

Property Description

>rives Returns a collection of all >rive objects on the computer 

MethodsMethod Description

2uildPath Appends a name to an existin" path

op&File opies one or more files from one location to another 

op&Folder  opies one or more folders from one location to another 

reateFolder  reates a new folder 

reateTextFile reates a text file and returns a TextStream object that can

 be used to read from% or write to the file

>eleteFile >eletes one or more specified files

>eleteFolder  >eletes one or more specified folders

>rive/xists hec$s if a specified drive exists

File/xists hec$s if a specified file exists

Folder/xists hec$s if a specified folder exists

8etAbsolutePathBame Returns the complete path from the root of the drive for

the specified path

8et2aseBame Returns the base name of a specified file or folder 

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8et>rive Returns a >rive object correspondin" to the drive in a

specified path

8et>riveBame Returns the drive name of a specified path

8et/xtensionBame Returns the file extension name for the last component in

a specified path

8etFile Returns a File object for a specified path

8etFileBame Returns the file name or folder name for the last

component in a specified path

8etFolder  Returns a Folder object for a specified path

8etParentFolderBame Returns the name of the parent folder of the last

component in a specified path

8etSpecialFolder  Returns the path to some of Windows; special folders

8etTempBame Returns a randoml& "enerated temporar& file or folder 

oveFile oves one or more files from one location to another 

oveFolder  oves one or more folders from one location to another 

*penTextFile *pens a file and returns a TextStream object that can be

used to access the file

ASP #e-tStre!m ObjectThe TextStream object is used to access the contents of a text file.

Examples

Read textfile

This example demonstrates how to use the *penTextFile method of the

FileS&stem*bject to create a TextStream *bject. The ReadAll method of the

TextStream *bject reads from the opened text file.

Read onl& a part of a textfile

This example demonstrates how to onl& read a part of a TextStream file.

Read one line of a textfile

This example demonstrates how to read one line from a TextStream file.

Read all lines from a textfile

This example demonstrates how to read all the lines from a TextStream file.

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S$ip a part of a textfile

This example demonstrates how to s$ip a specified number of characters when

readin" the TextStream file.

S$ip a line of a textfile

This example demonstrates how to s$ip a line when readin" the TextStream file.

Return line3number 

This example demonstrates how to return the current line number in a TextStream file.

8et column number 

This example demonstrates how to "et the column number of the current character in

a file.

The TextStream Object 

The TextStream object is used to access the contents of text files.

The followin" code creates a text file 4c'Ctest.txt5 and then writes some text to the file

4the variable f is an instance of the TextStream object5'

<%

dim fs, f

set fs=Server.CreateObject("Scripting.FileSystemObject")

set f=fs.Createe!tFile("c#test.t!t",tr$e)

f.rite&ine("'ell rld")f.Clse

set f=nt*ing

set fs=nt*ing

%+

To create an instance of the TextStream object &ou can use the reateTextFile or

*penTextFile methods of the FileS&stem*bject object% or &ou can use the

*penAsTextStream method of the File object.

The TextStream object;s properties and methods are described below'

Properties

Property   Description

At/nd*f!ine Returns true if the file pointer is positioned immediatel& before

the end3of3line mar$er in a TextStream file% and false if not

At/nd*fStream Returns true if the file pointer is at the end of a TextStream file%

and false if not

olumn Returns the column number of the current character position in

an input stream

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!ine Returns the current line number in a TextStream file

Methods

Method Description

lose loses an open TextStream file

Read Reads a specified number of characters from a TextStream file

and returns the result

ReadAll Reads an entire TextStream file and returns the result

Read!ine Reads one line from a TextStream file and returns the result

S$ip S$ips a specified number of characters when readin" a

TextStream file

S$ip!ine S$ips the next line when readin" a TextStream file

Write Writes a specified text to a TextStream file

Write!ine Writes a specified text and a new3line character to a TextStream

file

Write2lan$!ines Writes a specified number of new3line character to a TextStream

file

ASP Drive ObjectThe >rive object is used to return information about a local dis$ drive or a networ$

share.

Examples

8et the available space of a specified drive

This example demonstrates how to first create a FileS&stem*bject object% and then

use the AvailableSpace propert& to "et the available space of a specified drive.

8et the free space of a specified drive

This example demonstrates how to use the FreeSpace propert& to "et the free space of 

a specified drive.

8et the total siEe of a specified drive

This example demonstrates how to use the TotalSiEe propert& to "et the total siEe of a

specified drive.

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8et the drive letter of a specified drive

This example demonstrates how to use the >rive!etter propert& to "et the drive letter

of a specified drive.

8et the drive t&pe of a specified drive

This example demonstrates how to use the >riveT&pe propert& to "et the drive t&pe of a specified drive.

8et the file s&stem of a specified drive

This example demonstrates how to use the FileS&stem propert& to "et the file s&stem

of a specified drive.

1s the drive read&@

This example demonstrates how to use the 1sRead& propert& to chec$ whether a

specified drive is read&.

8et the path of a specified driveThis example demonstrates how to use the Path propert& to "et the path of a specified

drive.

8et the root folder of a specified drive

This example demonstrates how to use the RootFolder propert& to "et the root folder

of a specified drive.

8et the serialnumber of a specified drive

This example demonstrates how to use the Serialnumber propert& to "et the

serialnumber of a specified drive.

The !rive Object 

The >rive object is used to return information about a local dis$ drive or a networ$

share. The >rive object can return information about a drive;s t&pe of file s&stem% free

space% serial number% volume name% and more.

+ote, ou cannot return information about a drive;s content with the >rive object. For 

this purpose &ou will have to use the Folder object.

To wor$ with the properties of the >rive object% &ou will have to create an instance of

the >rive object throu"h the FileS&stem*bject object. FirstG create a

FileS&stem*bject object and then instantiate the >rive object throu"h the 8et>rive

method or the >rives propert& of the FileS&stem*bject object.

The followin" example uses the 8et>rive method of the FileS&stem*bject object to

instantiate the >rive object and the TotalSiEe propert& to return the total siEe in b&tes

of the specified drive 4c'5'

<%

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im fs,d

Set fs=Server.CreateObject("Scripting.FileSystemObject")

Set d=fs.-etrive("c")

espnse.rite("rive " / d / "")

espnse.rite("tal si0e in bytes " / d.talSi0e)

set d=nt*ing

set fs=nt*ing%+

*utput'

>rive c' Total siEe in b&tes' IJ(+K((JI

The >rive object;s properties are described below'

Properties

Property Description

AvailableSpace Returns the amount of available space to a user on a specified

drive or networ$ share

>rive!etter  Returns one uppercase letter that identifies the local drive or a

networ$ share

>riveT&pe Returns the t&pe of a specified drive

FileS&stem Returns the file s&stem in use for a specified drive

FreeSpace Returns the amount of free space to a user on a specified drive or 

networ$ share

1sRead& Returns true if the specified drive is read& and false if not

Path Returns an uppercase letter followed b& a colon that indicates

the path name for a specified drive

RootFolder  Returns a Folder object that represents the root folder of a

specified drive

SerialBumber  Returns the serial number of a specified drive

ShareBame Returns the networ$ share name for a specified drive

TotalSiEe Returns the total siEe of a specified drive or networ$ share

:olumeBame Sets or returns the volume name of a specified drive

ASP File Object

The File object is used to return information about a specified file.

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Examples

When was the file created@

This example demonstrates how to first create a FileS&stem*bject object% and then

use the >atereated propert& of the File object to "et the date and time a specified file

was created.

When was the file last modified@

This example demonstrates how to use the >ate!astodified propert& to "et the date

and time a specified file was last modified.

When was the file last accessed@

This example demonstrates how to use the >ate!astAccessed propert& to "et the date

and time a specified file was last accessed.

Return the attributes of a specified file

This example demonstrates how to use the Attributes propert& to return the attributes

of a specified file.

The File Object 

The File object is used to return information about a specified file.

To wor$ with the properties and methods of the File object% &ou will have to create an

instance of the File object throu"h the FileS&stem*bject object. FirstG create aFileS&stem*bject object and then instantiate the File object throu"h the 8etFile

method of the FileS&stem*bject object or throu"h the Files propert& of the Folder

object.

The followin" code uses the 8etFile method of the FileS&stem*bject object to

instantiate the File object and the >atereated propert& to return the date when the

specified file was created'

<%

im fs,f

Set fs=Server.CreateObject("Scripting.FileSystemObject")Set f=fs.-etFile("c#test.t!t")

espnse.rite("File created " / f.ateCreated)

set f=nt*ing

set fs=nt*ing

%+

*utput'

File created 123124553 355331 67

The File object;s properties and methods are described below'

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Properties

Property Description

Attributes Sets or returns the attributes of a specified file

>atereated Returns the date and time when a specified file was created>ate!astAccessed Returns the date and time when a specified file was last

accessed

>ate!astodified Returns the date and time when a specified file was last

modified

>rive Returns the drive letter of the drive where a specified file or

folder resides

 Bame Sets or returns the name of a specified file

ParentFolder  Returns the folder object for the parent of the specified filePath Returns the path for a specified file

ShortBame Returns the short name of a specified file 4the L.( namin"

convention5

ShortPath Returns the short path of a specified file 4the L.( namin"

convention5

SiEe Returns the siEe% in b&tes% of a specified file

T&pe Returns the t&pe of a specified file

Methods

Method   Description

op& opies a specified file from one location to another 

>elete >eletes a specified file

ove oves a specified file from one location to another 

*penAsTextStream  *pens a specified file and returns a TextStream object to

access the file

ASP Folder Object

The Folder *bject is used to return information about a specified folder.

The Fol"er Object 

The Folder object is used to return information about a specified folder.

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To wor$ with the properties and methods of the Folder object% &ou will have to create

an instance of the Folder object throu"h the FileS&stem*bject object. FirstG create a

FileS&stem*bject object and then instantiate the Folder object throu"h the 8etFolder

method of the FileS&stem*bject object.

The followin" code uses the 8etFolder method of the FileS&stem*bject object toinstantiate the Folder object and the >atereated propert& to return the date when the

specified folder was created'

<%

im fs,f

Set fs=Server.CreateObject("Scripting.FileSystemObject")

Set f=fs.-etFlder("c#test")

espnse.rite("Flder created " / f.ateCreated)

set f=nt*ing

set fs=nt*ing

%+

*utput'

Flder created 3524424553 355331 67

The Folder object;s collections% properties% and methods are described below'

Collections

Collection Description

Files Returns a collection of all the files in a specified folder 

SubFolders Returns a collection of all subfolders in a specified folder 

Properties

Property Description

Attributes Sets or returns the attributes of a specified folder 

>atereated Returns the date and time when a specified folder was created

>ate!astAccessed Returns the date and time when a specified folder was last

accessed

>ate!astodified Returns the date and time when a specified folder was last

modified

>rive Returns the drive letter of the drive where the specified folder

resides

1sRootFolder  Returns true if a folder is the root folder and false if not

 Bame Sets or returns the name of a specified folder 

ParentFolder  Returns the parent folder of a specified folder 

Path Returns the path for a specified folder 

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ShortBame Returns the short name of a specified folder 4the L.( namin"

convention5

ShortPath Returns the short path of a specified folder 4the L.( namin"

convention5

SiEe Returns the siEe of a specified folder 

T&pe Returns the t&pe of a specified folder 

Methods

Method   Description

op& opies a specified folder from one location to another 

>elete >eletes a specified folder 

ove oves a specified folder from one location to another 

reateTextFile reates a new text file in the specified folder and returns a

TextStream object to access the file

ASP Diction!ry Object

The >ictionar& object is used to store information in name0value pairs 4referred to as

$e& and item5

Examples

>oes a specified $e& exist@

This example demonstrates how to first create a >ictionar& object% and then use the

/xists method to chec$ if a specified $e& exists.

Return an arra& of all items

This example demonstrates how to use the 1tems method to return an arra& of all the

items.

Return an arra& of all $e&s

This example demonstrates how to use the Me&s method to return an arra& of all the

$e&s.

Return the value of an item

This example demonstrates how to use the 1tem propert& to return the value of an

item.

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Set a $e&

This example demonstrates how to use the Me& propert& to set a $e& in a >ictionar&

object.

Return the number of $e&0item pairs

This example demonstrates how to use the ount propert& to return the number of$e&0item pairs.

The !ictionary Object 

The >ictionar& object is used to store information in name0value pairs 4referred to as

$e& and item5. The >ictionar& object mi"ht seem similar to Arra&s% however% the

>ictionar& object is a more desirable solution to manipulate related data.

omparin" >ictionaries and Arra&s'

• Me&s are used to identif& the items in a >ictionar& object

• ou do not have to call Re>im to chan"e the siEe of the >ictionar& object

• When deletin" an item from a >ictionar&% the remainin" items will

automaticall& shift up

• >ictionaries cannot be multidimensional% Arra&s can

• >ictionaries have more built3in functions than Arra&s

• >ictionaries wor$ better than arra&s on accessin" random elements fre6uentl&

• >ictionaries wor$ better than arra&s on locatin" items b& their content

The followin" example creates a >ictionar& object% adds some $e&0item pairs to it%

and retrieves the item value for the $e& "r'

<%

im d

Set d=Server.CreateObject("Scripting.ictinary")

d.6dd "re","ed"

d.6dd "gr","-reen"

d.6dd "bl","8l$e"

d.6dd "pi","9in:"

espnse.rite("*e val$e f :ey gr is " / d.;tem("gr"))

%+

*utput'

*e val$e f :ey gr is -reen

The >ictionar& object;s properties and methods are described below'

Properties

Property   Description

ompareode Sets or returns the comparison mode for comparin" $e&s in a

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>ictionar& object

ount Returns the number of $e&0item pairs in a >ictionar& object

1tem Sets or returns the value of an item in a >ictionar& object

Me& Sets a new $e& value for an existin" $e& value in a >ictionar&object

Methods

Method   Description

Add Adds a new $e&0item pair to a >ictionar& object

/xists Returns a 2oolean value that indicates whether a specified $e&

exists in the >ictionar& object

1tems Returns an arra& of all the items in a >ictionar& object

Me&s Returns an arra& of all the $e&s in a >ictionar& object

Remove Removes one specified $e&0item pair from the >ictionar& object

RemoveAll Removes all the $e&0item pairs in the >ictionar& object