[Gvsig_english] gvSIG DefinitionExpression

[Andrés Maneiro]

Ernesto, Flavio,

I've *tried* what you need as a personal patch. The solution posted here 
only works reading data. If you want also to updating, it will raise an 
exception and will not work. I couldn't go further as I don't understand 
very well that part of gvsig guts. Anyway, in case it helps see this thread:
https://lists.forge.osor.eu/pipermail/gvsig-desktop-devel/2011-May/000192.html

I'm very interested on this feature and available to develop it for 
gvsig 1.X. For sure I will need some advice from people who knows gvsig 
internals. Jorge, if some gvsig developer could bring me some help on 
this topic, let me know. A good starter point will be replying the 
thread later referred. A personal mail will help, too.

best,
amaneiro

On 07/08/2011 01:51 PM, Flavio Pompermaier wrote:
> Thank you all for the quick responses..that was (unfortunaltely) what
> I was looking for..It would be a very nice feature to have in
> gvSIG..:(
>
> Best regards,
> Flavio
>
> 2011/7/8 ernesto sferlazza<e.sferlazza at gmail.com>:
>> Hi Jorge, Flavio, Ben and all,
>> the same issue [1] was dealed and soon dismissed in january 2008
>>
>> [1] http://osgeo-org.1803224.n2.nabble.com/Definition-query-td2010162.html
>>
>> With regard to symbology, definition query  is a different thing,
>> since a change of symbology hides feature visibility in the view (but
>> the correspondent records appears in the attribute table) , while
>> definition query hides unfiltered features at all.
>>
>> Best regards
>> Ernesto
>>
>>>
>>> Flavio Pompermaier wrote:
>>>> Hi to all,
>>>> is there anything like DefinitionExpression of ArcGIS in gvSIG?
>>>> I have to hide to the user some feature that are present instead in
>>>> the data..how can I accomplish this task?
>>>>
>>>> Best regards,
>>>> Flavio
>>>
>>
>>> Jorge Gaspar Sanz Salinas wrote:
>>> Not sure what a DefinitonExpression is (really, I haven't used an ESRI
>>> desktop tool for years) so I assume is the possibility to add a filter
>>> on the data at layer level, right??
>>>
>>> You have that option for databases and WFS in gvSIG 1.x but not for
>>> shapefiles I'm afraid.
>>
>>>
>>
>>> Benjamin Ducke wrote:
>>> [...]
>>> Go to the layer properties.
>>> Go to the "Symbology" page. Switch to the symbology
>>> type "Expression". You can build your expressions
>>> there.
>>
>>
>>
>>
>> --
>> ing. Ernesto Sferlazza
>> responsabile nodo provinciale di Agrigento del SITR Sicilia
>> resp. gruppo Sistema Informativo Territoriale
>> Provincia regionale di Agrigento
>> sede istituzionale: piazza Aldo Moro, 1 - 92100 AGRIGENTO
>> sede operativa: via Acrone, 27 - 92100 AGRIGENTO
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>> tel. uff 0922593752
>>
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