[mapguide-trac] #745: Error Theming Layer using data source with feature joins

[MapGuide Open Source]

#745: Error Theming Layer using data source with feature joins
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 Reporter:  CivilEng                |         Owner:        
     Type:  defect                  |        Status:  closed
 Priority:  high                    |     Milestone:        
Component:  Web API                 |       Version:  2.0.1 
 Severity:  critical                |    Resolution:  fixed 
 Keywords:  Theming, feature joins  |   External_id:        
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Changes (by jng):

  * status:  new => closed
  * resolution:  => fixed


Comment:

 Try this:

 {{{
 MgFeatureAggregateOptions aggregateOptions = new
 MgFeatureAggregateOptions();
 aggregateOptions.AddComputedProperty("UniqueValue", "UNIQUE(" +
 UFunctions.GetParameter(this.args, "PROPERTYNAME") + ")");

 dataReader = featureService.SelectAggregate(resId,
 layer.GetFeatureClassName(), aggregateOptions);
 }}}

 UNIQUE() is an undocumented special function that returns a list of unique
 values for the given property.

 Each unique value will be present under the "UniqueValue" computed
 property as you iterate through the data reader.

 Solution tested on 2.4 preview.

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Ticket URL: <http://trac.osgeo.org/mapguide/ticket/745#comment:5>
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