topic Re: Set QueryParameters.MaxFeatures and catch a exception in .NET Maps SDK Questions

Set QueryParameters.MaxFeatures and catch a exception

xiaoguangyan — Wed, 07 Jun 2017 02:03:50 GMT

When I set QueryParameters.MaxFeatures execute query then will catch a exception(Unable to complete operation.), but don't set it codes go well

Re: Set QueryParameters.MaxFeatures and catch a exception

xiaoguangyan — Wed, 07 Jun 2017 10:12:39 GMT

I notice that some featureserver with different Advanced Query Capabilities，some having all the Advanced Query Capabilities true supports can ServiceFeatureTable.QueryFeaturesAsync(QueryParameters parameters, QueryFeatureFields queryFeatureFields) with setting QueryParameters.MaxFeatures , does this Advanced Query Capabilities matters?

Re: Set QueryParameters.MaxFeatures and catch a exception

JenniferNery — Fri, 16 Jun 2017 23:15:16 GMT

Is `NAME` a field name in the service? If you use a name that does not exist on server you will get the same error:

For example, when if I mistyped with `NAM` for `NAME`: http://sampleserver6.arcgisonline.com/arcgis/rest/services/Notes/FeatureServer/0/query?where=NAM+LIKE+%27%25o%25%27&objectIds=&time=&geometry=&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&distance=&units=esriSRUnit_Foot&relationParam=&outFields=&returnGeometry=true&maxAllowableOffset=&geometryPrecision=&outSR=&gdbVersion=&returnDistinctValues=false&returnIdsOnly=false&returnCountOnly=false&returnExtentOnly=false&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnZ=false&returnM=false&multipatchOption=&resultOffset=&resultRecordCount=&f=html

FeatureTable.Fields should be able to give you the name to use in your query, it includes the same metadata found on server (i.e. FieldType, Name, Alias, IsEditable, etc).

Re: Set QueryParameters.MaxFeatures and catch a exception

xiaoguangyan — Sat, 17 Jun 2017 11:31:39 GMT

Hi Jennifer

I do have the field "Name", I checked and i did't mistyped either

Thanks for your detail reply