[mapguide-users] Filter features in the viewer

[vittorio]

Where can I find code examples regarding filter on the run-time layer?

I post my code used:

    String whereClause = "FG = '3'";
    String layerNameDaFiltrare = "par10";
    MgFeatureQueryOptions queryOptions = new MgFeatureQueryOptions();
    queryOptions.SetFilter(whereClause);
    MgLayer layer = (MgLayer) map.GetLayers().GetItem(layerNameDaFiltrare);
    MgFeatureReader featureReader = layer.SelectFeatures(queryOptions);

Thanks for your reponse.

Vittorio.



Kenneth Skovhede, GEOGRAF A/S wrote:
> 
> You must set the filter on the RuntimeLayer, not the LayerDefinition.
> Also, look in the server log for clues.
> There is a quirk in MapGuide, that it will render the entire layer 
> without filters, if the filter fails.
> I'm not sure you get a log message in that case, but start out with a 
> simple filter like:
> ID = 3
> 
> Regards, Kenneth Skovhede, GEOGRAF A/S
> 
> 
> 
> Vittorio Ricchiuto skrev:
>>
>> Hi,
>>
>>  
>>
>> I would filter features in the viewer, how can I do? I filter with the 
>> web API by SetFilter, but I do not see the effect on the map 
>> although I refresh the map.
>>
>>  
>>
>> Thank you for your help.
>>
>>  
>>
>> Vittorio.
>>
>>  
>>
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>>
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> 
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