VBScript Reference Manual for InduSoft Web Studio

VBScript Reference Manual InduSoft Web Studio
Interaction with the ActiveX control from VBScript is accomplished through VBScript code placed in a
Screen Script that is associated with the screen where the ActiveX control is placed. By entering a right
mouse click on a blank portion of the screen, and selecting Screen Script, the Screen Script is
accessed. For ActiveX Objects placed on the screen, you do not need to instantiate the Object in
VBScript, IWS has already taken care of this. You simply need to reference the ActiveX control by its
name, found in the Object Properties dialog box. Note: when referring to the name from VBScript,
the ActiveX control name is case sensitive for IWS versions 6.1 SP1 and earlier. From the
VBScript screen interface, you can access the ActiveX control’s Properties and Methods. Events are
not accessible from the VBScript Screen Script interface. The Active
Key Notes:
• You must use the VBScript Screen Script interface for the screen which contains the
ActiveX control in order to access the ActiveX control’s Properties and Methods. You
cannot access the ActiveX control’s Properties and Methods from another Screen
Script, or from any other VBScript interface in IWS.
• From VBScript, you can only access the ActiveX control’s Properties and Methods.
VBScript code segments for Events that are triggered by the ActiveX control can be
entered, but these VBScript code segments must be entered from the Configuration
dialog box (i.e. Object Properties � Configuration � Events).
• When the ActiveX control is referenced from the VBScript Screen Script interface, the
ActiveX control’s name is case-sensitive for IWS version 6.1 SP1 and earlier.
• You do not need to instantiate the ActiveX control. IWS has already taken care of this.
Simply refer to the ActiveX control name followed by a “.” and then the Property or
Method.
• In the VBScript Screen Script interface, place the cursor in a code segment area
(Subroutine) and press Ctrl –Space to invoke IntelliSense to see the VBScript
statements and functions, as well as the ActiveX controls available for this Script
Interface.
• Once you enter the ActiveX control object name, when you type a period (“.”),
Intellisense will display a list of available Properties and Methods for the ActiveX
control referenced.
Additional information on this topic is covered in the VBScript Configuration and Operation in IWS
section later in this material.
ActiveX Controls Instantiated from VBScript
ActiveX controls can be instantiated from VBScript by using the CreateObject and referencing the
Program ID (ProgID) of the ActiveX object, although the ActiveX object will not show up on the IWS
screen if the script segment is associated with a Screen.
ADODB and ADOX Objects and Collections
ADODB is the database wrapper for ADO.NET, or ActiveX Data Objects for Microsoft’s .NET
Framework. ADO.NET is Microsoft’s database interface technology that provides an API to database
client applications (i.e. IWS and VBScript), supporting a common interface to access and manipulate
data contained in a wide variety of database servers from different vendors. From the database client
side, there is a level of abstraction provided by the API that enables interaction (e.g. database access
and manipulation) to various vendor’s databases with virtually no code changes, except for the
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