Definition Query for Service Layers?

Question

According to build 1500, you can create a defnition query for a service layer:
http://blogs.esri.com/esri/arcgis/2010/08/24/what-s-new-in-arcgis-explorer-build-1500/

"�?�Definition query on feature and service layers"

I have figure out how to apply a definition query to a feature layer:

Dim theMap As Map = Application.ActiveMapDisplay.Map
Dim fLayer As FeatureLayer = TryCast(theMap.FindByName("CrimePart1_28Days"), FeatureLayer)
fLayer.QueryDefinition = "DIVISION = 'NORTH CENTRAL'"

I just haven't figured out how to apply a definition query to a service child service layer.

Very new to ArcExplorer SDK- any help would be appreciated

Jon Barlett
GIS Analyst
Dallas Police

JonBarlett · Answer

Shannon,

Sorry for the delay, I have been out of pocket for a while.  Just wanted to replay let you know that I did not get this to work.

Thanks

ShannonDeArmond · Answer

Hi Jon. Did you ever find a solution to this problem? I am trying to accomplish the same feat.

-Shannon

T__WayneWhitley · Answer

Looks possible, although I haven't tried any code.  See this doc below for 2500 and try cobbling something similar together for yours.  Actually, this is stated available for 1500 so I haven't a clue why it wouldn't be in the 1500 webhelp --- after the 'this is new' header, there's the statement:

"The API has not been changed for the latest release. This topic lists the new API types and members which were introduced in ArcGIS Explorer 1500."

New API Types and Members
http://help.arcgis.com/en/arcgisexplorer/2500/sdk/conceptualhelp/index.html#//000200000060000000

Search the page for the phrase, "ServiceChildLayer supports queries" which includes this listing for props/methods and you'll probably want to use CanQuery to verify if it's possible:

public sealed class ESRI.ArcGISExplorer.Mapping.ServiceChildLayer
Property: bool CanQuery { public get; }
Method (i): public MapItem Clone ()
Property: ColumnCollection Columns { public get; }
Method: public bool Contains (MapItem item)
Method: public MapItem FindById (Guid id)
Method: public MapItem FindByName (string name)
Method: public ReadOnlyCollection GetMapItems (T)
Property: IEnumerable { Type } Descendants { public get; }
Property: IEnumerable { Type } DescendantsBottomUp { public get; }
Property: Bitmap Icon { public get; public set; }
Property: int QueryFeatureLimit { public get; }
Method: public FeatureLayer Query (string whereClause)
Method: public int QueryFeatureCount (string whereClause)

Hope that steers you correctly!

Wayne