What is VB Script Programming

What is Vb Script Script Programing

By Apex TG India Pvt Ltd

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Class object. Class statement. Property Let.  Property Get.  Property Set.  Initialize event.  Terminate  Terminate event. 

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Inline classes. Registering your C! classes.

Classes in VBScript Class b!ect   

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 T#e object create$ create$ using t#e Class statement. Provi$es access to t#e events o% t#e class.  &ou  &ou cannot e'plicitly e'plicitly $eclare $eclare a variable to be o% type Class. In t#e ()Script conte't* t#e term +class object+ re%ers to any object $e,ne$ using t#e ()Script Class statement. Dim Set -  New classname 

Classes in VBScript Class Statement 0eclares t#e name o% a class* as ell as a $e,nition o% t#e variables* properties* properties* an$ met#o$s m et#o$s t#at comprise t#e class.  Synta' 

Class name  statements  End Class

Classes in VBScript Class Statement 

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3it#in a Class bloc4* members are $eclare$ as eit#er Private or appropriate $eclaration statements. Public using t#e appropriate 5nyt#ing $eclare$ as Private is visible only it#in t#e Class bloc4. 5nyt#ing $eclare$ as Public is visible it#in t#e Class bloc4* as ell as by co$e outsi$e t#e Class bloc4. 5nyt#ing not e'plicitly $eclare$ as eit#er Private or Public is Public by $e%ault. Proce$ures 6eit#er Sub or Function7 $eclare$ Public it#in t#e class bloc4 become met#o$s o% t#e class. Public variables serve as properties o% t#e class* as $o properties e'plicitly $eclare$ using Property Get* Property Let* an$ Property Set. 0e%ault properties an$ met#o$s %or t#e class are speci,e$ in t#eir $eclarations using t#e Default 4eyor$.

Classes in VBScript Get Property Statement 

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0eclares* in a Class bloc4* t#e name* arguments* an$ co$e t#at %orm t#e bo$y o% a Property proce$ure t#at gets 6returns7 t#e value o% a property. Synta' 9Public 9Default: ; Private: Property Get name  [(arglist : 9statements : 99Set: name     e'pression : 9E!it Property: 9statements : End Property

Classes in VBScript Get Property Statement 

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I% not e'plicitly e'plicitly speci,e$ using eit#er Public or Private* Property Get proce$ures are public by $e%ault* t#at is* t#ey are visible to all ot#er proce$ures in your script.  T#e value o% local local variables in in a Property Get proce$ure is not preserve$ beteen calls to t#e proce$ure.  &ou  &ou can=t $e,ne a Property Get proce$ure insi$e any ot#er proce$ure.  T#e E!it Property statement causes an imme$iate e'it %rom a Property Get proce$ure. Property Get proce$ure is a separate proce$ure t#at can ta4e arguments* per%orm a series o% statements* an$ c#ange t#e value o% its arguments.

Classes in VBScript Let Property Statement 

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0eclares* in a Class bloc4* t#e name* arguments* an$ co$e t#at %orm t#e bo$y o% a Property proce$ure t#at assigns 6sets7 t#e value val ue o% a property. property. Synta' 9Public 9Default: ; Private: Property Let name  (9arglist *: *: value  9statements : 99Set: name     e'pression : 9E!it Property : 9statements : End Property

Classes in VBScript Let Property Statement 

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I% not e'plicitly speci,e$ using eit#er Public or Private* Property Let proce$ures are public by $e%ault* t#at is* t#ey are visible to all ot#er proce$ures in your script.  T#e value o% local variables in a Property Let proce$ure is not preserve$ beteen calls to t#e proce$ure.  &ou  &ou can=t $e,ne $e,ne a Property Let proce$ure insi$e any ot#er proce$ure.  T#e E!it Property statement causes an imme$iate e'it %rom a Property Let proce$ure. @very Property Let statement must $e,ne at least one argument %or t#e proce$ure it $e,nes.

Classes in VBScript Set Property Statement 

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0eclares* in a Class bloc4* t#e name* arguments* an$ co$e t#at %orm t#e bo$y o% a Property proce$ure t#at sets a re%erence to an object. Synta' 9Public 9Default: ; Private: Property Set name  (9arglist *: *: re%erence  9statements : 99Set: name     e'pression : 9E!it Property : 9statements : End Property

Classes in VBScript Set Property Statement 

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I% not e'plicitly speci,e$ using eit#er Public or Private* Property Set proce$ures are public by $e%ault* t#at is* t#ey are visible to all ot#er proce$ures in your script.  T#e value o% local variables in a Property Set proce$ure is not preserve$ beteen calls to t#e proce$ure.  &ou  &ou can=t $e,ne $e,ne a Property Set proce$ure insi$e any ot#er  T#e E!it Property statement causes an imme$iate e'it %rom a Property Set proce$ure. @very Property Set statement must $e,ne at least one argument %or t#e proce$ure it $e,nes.

Classes in VBScript Initiali"e #vent 

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ccurs #en an instance o% t#e t #e associate$ class is create$. Synta' Private Sub ClassBInitialize67 ClassBInitialize67 statements  End Sub Set -  New TestClass Set -  Not"in#

= Create an instance o% TestClass. TestClass. = 0estroy t#e instance.

Classes in VBScript Terminate #vent 

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ccurs #en an instance o% t#e t #e associate$ class is terminate$. Synta' Private Sub ClassBTerminate67 statements  End Sub Set -  New TestClass Set -  Not"in#

= Create an instance o% TestClass. TestClass. = 0estroy t#e instance.

Classes in VBScript Inline Classes 

Inline class is a class t#at you can imme$iatelly use it#out registering t#e class.

Classes in VBScript $yArray Class % #xample Inline class is a class t#at you can imme$iatelly use it#out registering t#e class. ()Script()Sclass.vbs

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Creating a C$ Class Step & 

pen a ne 5ctive- 0LL Project in (isual )asic 8

Creating a C$ Class Step ' 

Rename t#e project

Creating a C$ Class Step ( 

Remove t#e e'isting empty class

Creating a C$ Class Step ) 

pen t#e () Class buil$er

Creating a C$ Class Step * 

Create a ne class

Creating a C$ Class Step + 

5$$ properties* met#o$s* events an$ enums using t#e class cl ass buil$er. buil$er.

Creating a C$ Class Step , 

Dp$ate t#e project

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Save t#e project an$ compile t#e $ll.