Learnthat.com - Active Server Pages (ASP)

Declaring Type Libraries

In IIS5 and later, you can use the Global.asa file to declare a type library to bind to the application. Type libraries are files containing information about a particular COM object. Declaring a type library in Global.asa lets you access the constants for the object from any page in the application.

To declare a type library, you use the <METADATA> tag:

Sub Application_OnStart

Application("AppName")="Holiday Tips "

Application("Holiday")="Valentine's Day"

End Sub

Sub Application_OnEnd

Application("Holiday")=""

End Sub

</SCRIPT>

</OBJECT>

The UUID attribute specifies the unique identifier for the type library. You must use either the UUID attribute or the FILE attribute, which specifies the physical location of the library:

Sub Application_OnStart

Application("AppName")="Holiday Tips "

Application("Holiday")="Valentine's Day"

End Sub

Sub Application_OnEnd

Application("Holiday")=""

End Sub

</SCRIPT>

</OBJECT>

Other optional attributes are VERSION and LCID. Version specifies the major and minor version numbers (in the form VERSION="Major.Minor") and LCID specifies the locale identifier. If the local is not specified, the System locale is used.

Once you declare a type library, you can create an instance of the object in any ASP page in the application, and then access the constants that have been declared for the object:

<HTML>

<BODY>

Set rs = Server.CreateObject("ADODB.Recordset")

rs.ActiveConnection = cnnStuff

rs.CursorType = adOpenKeyset

rs.LockType = adLockOptimistic

</BODY>

</HTML>

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