The True Curve feature is not supported by the IQueryFunctionality::Query method. However, if a map control is added to the page, the query function works fine. An explanation is needed.

解决办法

Add the following code before the query() method:

ESRI.ArcGIS.ADF.Web.DataSources.ArcGISServer.QueryFunctionality agsQF =

(ESRI.ArcGIS.ADF.Web.DataSources.ArcGISServer.QueryFunctionality)queryFuncti

onality;

ESRI.ArcGIS.ADF.Web.DataSources.IMapInformation mi = agsQF.MapResource.MapInformation;

重现步骤