The same issue happens in Mapguide Enterprise 2009 and I hope it will be fixed soon. I work with a database that has a lot of null attributes and querying data by attribute is unreliable.
Jackie Ng wrote: > > > I believe it is because the MgFeatureReader now throws exceptions when > accessing null values and that the http handler hasn't been updated to > check > for nulls first. > > I've already made a ticket for this issue here: > > http://trac.osgeo.org/mapguide/ticket/708 > > - Jackie > > > Carl wrote: >> >> I tried Services API 'SelectFeatures' of 'Feature' on >> http://localhost/MapGuide/mapagent/index.html. >> >> fill the Resource id with a MS SQL Server 2008 feature source >> the Class name with a table name >> and left other field as default. >> >> the return is as follows: >> >> Value for Prj_SpatialData property is null. >> Value for Prj_SpatialData property is null. Exception occurred in method >> MgNullableProperty.CheckNull at line 73 in file >> d:\buildforgeprojects\mapguide_open_source_v2.0\build_23.8\mgdev\common\foundation\Data/NullableProperty.cpp >> >> Prj_SpatialData is of nullable varchar(MAX) field. >> >> When I manually update Prj_SpatialData='', OK, no error messages shown. >> >> I tried several tables. Once one table contains a row with null field >> value, the above message will be shown. >> >> It seems SelectFeatures can't accept the null field value. If so, is it a >> bug? >> > > > ----- > http://themapguyde.blogspot.com > > http://www.linkedin.com/in/jackieng > -- > View this message in context: > http://www.nabble.com/Services-API%3A-%27SelectFeatures%27-can%27t-accept-null-properties--tp20057379p20059721.html > Sent from the MapGuide Users mailing list archive at Nabble.com. > > _______________________________________________ > mapguide-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapguide-users > > -- View this message in context: http://n2.nabble.com/Services-API%3A-%27SelectFeatures%27-can%27t-accept-null-properties--tp1352046p1356893.html Sent from the MapGuide Users mailing list archive at Nabble.com. _______________________________________________ mapguide-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapguide-users
