.Net tlb not exposing all Classes : Interop COM .Net DLL

Experts Exchange

	[x] Posted via EE Mobile
	Search, ask, and monitor your questions on the go with EE Mobile. Visit Experts Exchange from your mobile device and never be out of touch again.

Question

	[x] Attachment Details

[x]

The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

The Grade of the Solution
The Zone Rank of the Expert Providing the Solution
The Number of Author and Expert Comments
The Number of Experts Contributing
The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!

7.8

.Net tlb not exposing all Classes

Asked by benblanco in ActiveX, .NET, Microsoft Excel Spreadsheet Software

Tags: Interop COM .Net DLL

I'm writing COM compatible .Net DLL. In other words I'm writing a .Net DLL that, and I need it compatible with VBA so I have already set "Make Assembly COM-Visible"=True and checked "Register for COM interop". When I compile the Project it generates the tlb file and I'm able to reference the tlb from VBA. But once I go to instantiate a class I find a problem. Only one of the many public classes is availible.

My assembly is called TAS_RS_Calcs and I have several public classes including RefProp, Fluid, StreamPath, etc. So I should be able to see Fluid, for example, under TAS_RS_Calcs, but all I get in the intelliscense is RefProp.

Dim g As New TAS_RS_Calcs.Fluid fails from VBA, but Dim g As New TAS_RS_Calcs.RefProp works.

While Dim g As New TAS_RS_Calcs.Fluid works fine in .Net

So it seems that in the translation from COM to CLR there is a problem or vise-versa. This DLL was fully functional before I don't know what I could have done to cause this.

Here are my Class Declarations:
<System.Runtime.InteropServices.ClassInterface(System.Runtime.InteropServices.ClassInterfaceType.AutoDual)> _
Partial Public Class RefProp

<System.Runtime.InteropServices.ClassInterface(System.Runtime.InteropServices.ClassInterfaceType.AutoDual)> _
Public Class Fluid

<System.Runtime.InteropServices.ClassInterface(System.Runtime.InteropServices.ClassInterfaceType.AutoDual)> _
Public Class StreamPath

and I've tried removing the class interface prefixes to see if that would help and it doesn't.

Can someone please tell me why only one class is accessible via the tlb COM reference?

View the Solution FREE for 30 Days

Attachments:

ClassesMissingInVBA.JPG (19 KB) (File Type Details)

ScreenShot of intellisense in both environments

20091021-EE-VQP-81 - Hierarchy / EE_QW_3_20080625

Hall of Fame

1. acperkins13,400
2. JohnGaby11,450
3. jkr9,200
4. mplungjan8,000
5. DanRollins7,300
6. rorya7,100
7. tedbilly6,500
8. abel6,300
9. ryancys6,000
9. boag20006,000
9. Gideon76,000
12. johnb67675,000
12. kaylanreilor5,000
14. mlmcc4,900
15. tbsgadi4,500
15. b0lsc0tt4,500
17. TheLearn...4,200
18. brettdj4,000
18. BlueDevilF...4,000
18. VBRocks4,000
21. PaulHews3,750
21. CodeCruiser3,750
23. northfields3,600
24. Idle_Mind3,400
25. PedroCGD3,200
25. HalfAsleep3,200

1. jkr43,422
2. DanRollins27,700
3. mlmcc25,275
4. acperkins21,770
5. LSMCons...20,100
6. jaime_oliv...17,797
7. TheLearn...17,000
8. PaulHews16,250
9. JohnGaby15,400
10. rorya14,700
11. b0lsc0tt13,000
12. Gurudenis12,425
13. developm...11,400
14. mplungjan10,875
15. hielo10,800
16. ziolko10,600
17. GrahamSkan10,100
18. emoreau9,400
19. BigRat9,375
20. war18,775
21. hes8,620
22. danaseaman8,350
23. mahesh1...8,000
23. kaylanreilor8,000
25. EDDYKT7,900

.Net tlb not exposing all Classes

Asked by benblanco in ActiveX, .NET, Microsoft Excel Spreadsheet Software

Tags: Interop COM .Net DLL

About this solution