The GetExpressionCapabilities for sdf provider tells me that it supports
Concat
SpatialExtents
Ceil
Floor
Lower
Upper
Sum
Count
Min
Avg
Max
But i can't make it to works
MgFeatureService featureService =
(MgFeatureService)site.CreateService(MgServiceType.FeatureService);
MgResourceIdentifier resId = new
MgResourceIdentifier("Library://Samples/Sheboygan/Data/Parcels.FeatureSource");
MgFeatureQueryOptions queryOptions = new MgFeatureQueryOptions();
//this one returns : Invalid property name: Count()
//queryOptions.AddFeatureProperty("Count()");
//this one returns : The function 'Count' is not supported by this
provider
queryOptions.AddComputedProperty("Count", "Count()");
MgFeatureReader dataReader = featureService.SelectFeatures(resId,
"SHP_Schema:Parcels", queryOptions);
--
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