I have a .bas file saved locally that I load into my Acces project to run a particular sub. I use the following code to load the module (which works fine):
For Each Comp In Application.VBE .ActiveVBProjec t.VBComponents
If Comp.Name = ProductName Then
Application.VBE .ActiveVBProjec t.VBComponents. Remove Comp
Exit For
End If
Next
The above works fine (both adding the module and subsequantly removing it) provided I do not run any code within the module once it is loaded. The second I use code within the module the deletion loop does not seem to remove the module immediately (as it would do prior to running any code in the module).
The procedure in it's entirity is as follows:
Public Property Let Product(Product Name As String)
Dim Comp As Object
'Close rates connection if it is already open
If RatesConn.State <> 0 Then RatesConn.Close
'Remove old code modules
For Each Comp In Application.VBE .ActiveVBProjec t.VBComponents
If Comp.Name = ProductName Then
Application.VBE .ActiveVBProjec t.VBComponents. Remove Comp
Exit For
End If
Next
Really baffling, if no code is run within the loaded BAS the deletion loop removes the module immediately and a fresh version of the ub can be loaded. If code is run the deletion loop does not work immediately and when the procedure comes to add a fresh version of the BAS it creates a duplicate with "1" on the end.
I have tried substituting the deletion loop with a simple docmd.deletobje ct acmodule, ProductName without much luck.
Are you only able to add/remove modules whilst no code within that module has been run?
Any help greatly appreciated!!
Thanks
EDIT: Just to point out the obvious, I have made sure that all code within the loaded bas has finished executing prior to attempting to remove it.
I've experimented a while with this problem and the only way I could reproduce the bug is when subroutine supposed to remove module contain early compiled call to public subroutine in the module to delete.
e.g.
Module: Module1
Expand|Select|Wrap|Line Numbers
Public Sub Sub1()
.....
End Sub
Module: Main
Expand|Select|Wrap|Line Numbers
Public Sub DelAndImport()
With Application.VBE.ActiveVBProject.VBComponents
.Remove .Item("Module1")
.Import "X:\Module1.bas"
Sub1
End With
End Sub
on the other hand, indirect call of the sub works flawlessly
Module: Module1
Expand|Select|Wrap|Line Numbers
Public Sub Sub1()
.....
End Sub
Module: Main
Expand|Select|Wrap|Line Numbers
Public Sub DelAndImport()
With Application.VBE.ActiveVBProject.VBComponents
.Remove .Item("Module1")
.Import "X:\Module1.bas"
Run "Sub1"
End With
End Sub
This, I guess, makes a perfect sense. Since there is a compiled and running code referencing code module, it could not be removed.
So, in few words, the problem is not that the module is loaded since some code in it has been invoked, but that there is a compiled call to this module in code being executed.
Don't forget 2 other viable, and probably more efficient approaches to running Functions/Sub-Routines in External Modules, namely:
Create a Library Database (*.mda/*.mde) consisting of the Module's functionality. You could then set a Reference, either manually or dynamically, to this Library Database and access its Sub-Routines, Functions, Constants, etc...
(Automation) - Set an Object Reference to the Database containing the External Module, then use the Run Method of the Application Object to execute its Routines, etc. This approach, would of course, involve encapsulating the Module's Code within a DB.
I feel as though either approach would be better than the current one.
I have managed to delete a BAS then import a new version and then run the sub within the loaded BAS without any trouble. The problem arrives when I try to remove this BAS to load a new one.
The database is a motor insurance quote engine which will need to load one of several hundred BAS files at runtime dependant on the effective month / years rates selected by the user. I have attached a number of screenshots to try to better highlight this. It seems the first time a BAS is removed and a new one loaded everything works fine, however, each subsequant BAS seems to cease any classes that are active (they will appear to be set back to Nothing).
We are limited on space hence why we are not using multiple MDB files to act as code containers.
EDIT: Have uploaded a ZIP with the full size screenshots.
@FishVal
I've not tried to indirectly call, will give that a go now.
The code generates an insurance premium. Although the same table of risk information is used to generate a premium i.e. they all use Driver's Sex, Age, Vehicle, Cover etc they behave differently when generating underwriting terms based on this information (be it differing excesses, endorsements, premium breakdowns). Some of the product BAS files require little over 200 lines of code to achieve the final premium, others are closer to 2000.
@Nates
Any possibility of Uploading a Mini-Version of your DB with only a few Modules, and only the minimal and essential code that is failing? You need only to include the relevant code along with any other specifics. The data itself is also irrelevant, can even be dummy, and need only parallel the actual data in the DB.
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