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Asychronous Calls...

Why is that when I run the following line of code:

  spMyProc.Execute , , adAsyncExecute + adExecuteNoRecords + adCmdStoredProc

with a connection opened with the adAsyncConnect option, the call won't run asychronously, it won't even run at all! The stored procedure shouldn't return any records but the event on the connection object fires to say its completed successfully and there are no errors... When I remove the adAsyncExecute option the command fires and stored procude runs... but not asychronously...

Any ideas?
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mshire
Asked:
mshire
1 Solution
 
mshireAuthor Commented:
Not really, I'm using ADO 2.6 on SQL 2000... and it doesn't want to work with a Server side cursor or a client side cursor...
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VincentLawlorCommented:
This means that your call to the database will execute Asynchronously

The Connection returning is just telling you that you have connected to the database.

You cannot run command on a connection that is not open so you have to wait for your Asynchronous connect to complete first and then run the stored procedure.

Vin.



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mshireAuthor Commented:
Done.

I have the connection object declared withevents and a message on the ConnectComplete and ExecuteComplete.

A dummy form with two buttons - one connects to the database and I wait for the connectcomplete event...
then a second button to fire the command object based on my stored procedure - but it won't execute the stored procedure if I leave in the adAsyncExecute option on the execute method...

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VincentLawlorCommented:
What error is it throwing if any ?

Vin.


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mshireAuthor Commented:
No error occurs as such, its just that I can see from the database that the procedure hasn't run (and the executecomplete event fires too soon) - but if I remove the adAsyncExecute everything works fine...
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VincentLawlorCommented:
Why are you using asynchronsous execution on a stored prodedure that returns no records anyway ?? Just curious.

Ansyncronous calls are messy in VB to begin with as it's not a multithreaded environment.

Vin.
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VincentLawlorCommented:
Have you traced the stored procedure with SQL trace ?

Vin
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mshireAuthor Commented:
Its part of a datacleaning routine and I'd like the vb program to have the control back, although it will do nothing apart from look busy (and a cancel button).

and no I haven't used SQL Trace - I'll give it a shot.
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