Can't delete a stack

Pierre Sahores sc at sahores-conseil.com
Sat Mar 23 15:02:53 EDT 2013


from the dictionary entry for "Delete" :

 Important!  You cannot delete the object whose script holds a currently executing handler.

Can makes thing confusing in some cases ;-)

Le 23 mars 2013 à 19:34, Graham Samuel a écrit :

> Sadly, exactly the same thing. If the IDE can purge a stack, why can't I? Maybe the delete command fires some other handler I don't know about. I will try to reduce the thing to a very simple test. I'm using LC 5.5.4 on a Mac, by the way.
> 
> Graham
> 
> On 23 Mar 2013, at 18:54, dunbarx at aol.com wrote:
> 
>> Graham.
>> 
>> 
>> Without digging into this at all, what happens if you delete the file last?
>> 
>> 
>> Craig Newman
>> 
>> 
>> 
>> -----Original Message-----
>> From: Graham Samuel <livfoss at mac.com>
>> To: How to use LiveCode <use-livecode at lists.runrev.com>
>> Sent: Sat, Mar 23, 2013 1:28 pm
>> Subject: Can't delete a stack
>> 
>> 
>> I've got a stack that I want to purge in the way the IDE does. At the time of 
>> execution of the script below, the stack is in memory with a copy of it in a 
>> file (the path is in a global 'gDataStackPath'. I want to destroy both. Part of 
>> my script looks like this:
>> 
>> try
>>     if there is a file gDataStackPath then
>>        delete file gDataStackPath
>>        set the cantDelete of stack "myData" to false
>>        set the destroyStack of stack "myData" to true
>>        set the destroyWindow of stack "myData" to true
>>        delete stack "myData" -- this should remove it from memory
>> 
>> This deletes the file as expected, and the IDE shows that the stack is still in 
>> memory, but the script crashes on the 'delete stack..' line. The error is 361 
>> "can't set this property".
>> 
>> What did I do wrong?
>> 
>> TIA
>> 
>> Graham
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> 
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