How to make a Dictionary<> visible to vbscript

  • Thread starter Thread starter Andrew Falanga
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A

Andrew Falanga

Hi,

I hope this is the right forum. How do I make a Dictionary object in
C# visible, and usable, to VBScript? Should I ask this in a VBScript
forum, or this one?

Andy
 
Andrew said:
Hi,

I hope this is the right forum. How do I make a Dictionary object in
C# visible, and usable, to VBScript? Should I ask this in a VBScript
forum, or this one?
Click to expand...

Objects exist in methods, routines, processes, and they are either
visible or not visible to other methods, routines, processes. The
concept of an object being either visible or not visible to a *language*
is invalid.

What are you running in C# and where are you running it, and what are
you running in VBScript and where are you running it? Are you running an
C# ASP.NET application on a web server, with the C# application running
on the server and sending web content to a browser, including code in
VBScript that runs in the browser? Are you trying to run a website with
some ASP.NET pages written in C# but also with some ASP pages with
server-side code written in VBScript?
 
I hope this is the right forum. How do I make a Dictionary object in
C# visible, and usable, to VBScript? Should I ask this in a VBScript
forum, or this one?
Click to expand...

In order for anything .NET to be visible to VBScript it will need to be
COM-visible. I don't exactly know how to do that, but I know that's the
route you need to go.
 
Objects exist in methods, routines, processes, and they are either
visible or not visible to other methods, routines, processes. The
concept of an object being either visible or not visible to a *language*
is invalid.

What are you running in C# and where are you running it, and what are
you running in VBScript and where are you running it? Are you running an
C# ASP.NET application on a web server, with the C# application running
on the server and sending web content to a browser, including code in
VBScript that runs in the browser? Are you trying to run a website with
some ASP.NET pages written in C# but also with some ASP pages with
server-side code written in VBScript?
Click to expand...

Thank you for the education I really am quite ignorant about these
things.

I'm not working with a web implementation of anything. There is no
ASP.NET. So far as I know, it's simply .NET. I have to make certain
things in my C# sources ComVisible, but that's about it. I'm
wondering how I could iterate over a Dictionary<> object, produced in
a method in my C# code, that is returned by that COM visible method
when that method is called by a VBScript; e.g. use in a Foreach (or
whatever it is VBS calls it). I have no problems returning boolean,
int or strings but I figured it's because VBScript new about such
types, or at the least, that they were primitive types in .NET.
However, I was unsure of the Dictionary<> object.

Andy
 
* Andrew Falanga wrote, On 4-11-2009 23:45:
Thank you for the education I really am quite ignorant about these
things.

I'm not working with a web implementation of anything. There is no
ASP.NET. So far as I know, it's simply .NET. I have to make certain
things in my C# sources ComVisible, but that's about it. I'm
wondering how I could iterate over a Dictionary<> object, produced in
a method in my C# code, that is returned by that COM visible method
when that method is called by a VBScript; e.g. use in a Foreach (or
whatever it is VBS calls it). I have no problems returning boolean,
int or strings but I figured it's because VBScript new about such
types, or at the least, that they were primitive types in .NET.
However, I was unsure of the Dictionary<> object.
Click to expand...


VBScript does not understand Generic classes. But most generic
interfaces also implement their non generic counterpart. So you should
be able to use that in VBScript.

So either return a non-generic Dictionary, or create your own dictionary
class that implements both IDictionary<T> and IDictionary.

Use the IDictionary<T> in C# and fall back to IDictionary in VBScript.
 
* Andrew Falanga wrote, On 4-11-2009 23:45:






VBScript does not understand Generic classes. But most generic
interfaces also implement their non generic counterpart. So you should
be able to use that in VBScript.

So either return a non-generic Dictionary, or create your own dictionary
class that implements both IDictionary<T> and IDictionary.

Use the IDictionary<T> in C# and fall back to IDictionary in VBScript.
Click to expand...

Thanks. Sounds like I've got some reading to do. I figured out that
the dictionary isn't what I need, but rather a List. I'm assuming I'd
use the same approach. Is this true?

Andy
 
* Andrew Falanga wrote, On 5-11-2009 1:23:
Thanks. Sounds like I've got some reading to do. I figured out that
the dictionary isn't what I need, but rather a List. I'm assuming I'd
use the same approach. Is this true?
Click to expand...

Correct. Make sure you implement both or inherit from IList<T>.
 
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