VBScript Reference Manual for InduSoft Web Studio

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VBScript Reference Manual InduSoft Web Studio Call Description Transfers control to a Sub or Function procedure Usage Call name [argumentlist] Arguments Call Optional keyword. If specified, you must enclose argumentlist in parentheses. For example: Call MyProc(0) name Required. Name of the procedure to call. argumentlist Optional. Comma-delimited list of variables, arrays, or expressions to pass to the procedure. Remarks You are not required to use the Call keyword when calling a procedure. However, if you use the Call keyword to call a procedure that requires arguments, argumentlist must be enclosed in parentheses. If you omit the Call keyword, you also must omit the parentheses around argumentlist. If you use either Call syntax to call Example Function MyFunction(text) MsgBox text End Function Call MyFunction("Hello World") MyFunction “Hello World” 172 InduSoft, Ltd.
InduSoft Web Studio VBScript Reference Manual Class Description Declares the name of a class, as well as a definition of the variables, properties, and methods that comprise the class Usage Class classname statements End Class Arguments classname Required. Name of the Class; follows standard variable naming conventions. statements Required. One or more statements that define the variables, properties, and methods of the Class. Remarks Within a Class block, members are declared as either Private or Public using the appropriate declaration statements. Anything declared as Private is visible only within the Class block. Anything declared as Public is visible within the Class block, as well as by code outside the Class block. Anything not explicitly declared as either Private or Public is Public by default. Procedures (either Sub or Function) declared Public within the class block become methods of the class. Public variables serve as properties of the class, as do properties explicitly declared using Property Get, Property Let, and Property Set. Default properties and methods for the class are specified in their declarations using the Default keyword. See the individual declaration statement topics for information on how this keyword is used. You must instantiate an object to use it, using the Set command; i.e. Set objname = New classname See Also Property Get, Property Let, Property Set Example Class SignOn Private MyName, MyLevel ‘Variable declaration Public Property Let UsrName(strName) ‘Set the property value for user name MyName = strName End Property Public Property Let UsrLevel(strLevel) ‘Set the property value for user level MyLevel = strLevel End Property Public Property Get UsrName ‘Return the property value UsrName = MyName End Property Public Property Get UsrLevel ‘Return the property value UsrLevel = MyLevel End Property Public Sub LogOnMsg ‘LogOnMsg is a method. No parameters passed MsgBox MakeMsg(MyLevel) EndSub Private Function MakeMsg(strLevel) Select Case StrLevel Case “User” MakeMsg = “Hello “ & MyName & vbCrLf & “Logged on as “ & MyLevel Case “Supervisor” MakeMsg = “Welcome “ & MyName & vbCrLf & “Your level is “ & MyLevel End Select End Function End Class Dim LogOn Set LogOn = New SignOn ‘Instantiate the object With LogOn .UsrName = “Joe” ‘Set the name property .UsrLevel = “Supervisor” ‘Set the level property .LogOnMsg ‘Invoke logon method End With Set LogOn = Nothing InduSoft, Ltd. 173
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