Object Invalid Or No Longer Set - Error (1 Viewer)

odin1701

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I have a few people getting this error in my database. Happens when they try to save a record and then get a new one.

I have searched on Google and not found anything that seems to be related to my problem. I'm just curious how to get around this error. I don't mind if it pops up, but I want the users to be able to continue working after the error. It seems to save the record just fine, but when it tries to pull a new one that is the problem. It's just using a form.requery method for getting another record and the forms datasource is set to a SQL query.
 

RuralGuy

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That error could be the result of an unhandled error.
 

odin1701

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I have error handling in it, and it pops up my own dialog box when the error happens which I have in it do On Error.
 

RuralGuy

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The error you are getting is probably *after* you have already had an unhandled error. By the time you get that error it is already too late. Do you have good error handling throughout your application? Are you set to break on unhandled errors? Do you turn off error messages anywhere in your system (not recommended)?
 

gemma-the-husky

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i have found that just using

currentdb.something or other can cause problems for some reason

I now ALWAYS do

dim dbs as database
set dbs = currentdb


and then

dbs.something or other


----------
and I never get the out of scope error
 

RuralGuy

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Dave probably hit the nail on the head.
 

LPurvis

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It is rather "pin the tail on the donkey" this isn't it? ;-)

"Somewhere in my code, this error is raised. Discuss." lol.

The specific code from the event procedures which are employed around that form's actions could be instructive. Does it happen for all users? Can you reproduce it?

FWIW the CurrentDb scope phenominon is quite quantifiable.
It's true that it doesn't always create a persisted parent object for it's DAO child collection objects, and so always using an object variable is a safe guard.
We went on about it over at UA a while ago.

But suffice to say, it should occur consistently - depending upon the objects being operated upon.

Cheers.
 
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gemma-the-husky

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It is rather "pin the tail on the donkey" this isn't it? ;-)

"Somewhere in my code, this error is raised. Discuss." lol.

The specific code from the event procedures which are employed around that form's actions could be instructive. Does it happen for all users? Can you reproduce it?

FWIW the CurrentDb scope phenominon is quite quantifiable.
It's true that it doesn't always create a persisted parent object for it's DAO child collection objects, and so always using an object variable is a safe guard.
We went on about it over at UA a while ago.

But suffice to say, it should occur consistently - depending upon the objects being operated upon.

Cheers.

That's a better way to put it, technically, Leigh!

and the referenced thread seems equally technical!
 
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LPurvis

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And quite long. :)
To summarise, different DAO objects behave differently with regard to persistence.
As a very general rule, objects what represent data (as opposed to vessels which return it) require persistence.
Whereas Recordsets and QueryDefs don't require a persisted parent database object.

The thread's there for any interested.
Or you can just always use a Database object variable. ;-)

Cheers.
 

gemma-the-husky

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and of course its always just

currentdb.execute etc

so its the DAO references that cause the trouble.
 

NauticalGent

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This topic is discussed here. It evens references this thread, which is how I found it in the first place. Thought I would close the loop...
 

Isaac

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See the one and only 'comment' after the article you linked to, which did 10x more than the article did to explain it
(Although I have no idea if anything they posted was right - don't know one way or the other).
 

NauticalGent

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See the one and only 'comment' after the article you linked to, which did 10x more than the article did to explain it
(Although I have no idea if anything they posted was right - don't know one way or the other).
Completely missed that, thanks for clarifying.
 

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