Data Grids Stop Working

[Paul Looney]

Good advice Bob,
I found the problem this time (see reply to Trevor). It has happened  
before without changing the name of the dg or relevant script. Hope  
not to see it again but will store your advice and Trevor's just in  
case...
Thank you.
PL

On Nov 24, 2010, at 9:50 AM, Bob Sneidar wrote:

> It would be interesting to know what vTheList contained at the time  
> of the error. Also, (and I know it sounds too simple) but are you  
> sure the name of the data grid has not changed?
>
> Now the line you show below would be one you would execute outside  
> the datagrid itself. If this is something inside the datagrid, you  
> should use the form "of me" (assuming it's in the datagrid behavior  
> script). Not saying that is the problem, but I would start looking  
> at the simple things.
>
> Bob
>
>
> On Nov 23, 2010, at 9:04 PM, Paul Looney wrote:
>
>> Many times, on many stacks, data grids have simply stopped working  
>> - without any warning or error.
>> The line of code they fail to execute is this, or similar:
>>
>>   set the dgText of grp "Data Grid" to vTheList
>>
>> The code may have worked for months before is fails.
>> The only solution I've found is to delete the existing grids and  
>> replace them with new ones. Doing so, without any code changes,  
>> fixes the problem.
>> I don't have a recipe. But, so far, the problem has only come up  
>> while working in the IDE.
>> It has appeared on different computers (all Mac), with different  
>> OSes (OS X 10.4.11 through OS X 10.6.4) and assorted versions of  
>> Rev/Livecode (4.0 through 4.5.1).
>> Advice/suggestions appreciated.
>> Paul Looney
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