topic Querying multiple/all layers in multiple in multiple mapservers? in ArcGIS API for Flex Questions

Querying multiple/all layers in multiple in multiple mapservers?

psingh — Fri, 06 May 2011 01:53:04 GMT

Hi,

Is it possible to query multiple layers in multiple mapservers?

If someone can help or guide me towards a way to achieve this, I'll greatly appreciate it.

Thanks

Re: Querying multiple/all layers in multiple in multiple mapservers?

BjornSvensson — Fri, 06 May 2011 14:20:00 GMT

Not in one call. You can only query against one layer at a time, but you could send multiple requests to achieve your multiple layer query functionality.

You might also want to look at FindTask and IdentifyTask. They both work with a mapservice (as opposed to a layer within a mapservice like Query). Depending on what/how you want to query, they might be helpful.

Re: Querying multiple/all layers in multiple in multiple mapservers?

psingh — Wed, 11 May 2011 22:29:14 GMT

Hi,

Thanks a lot for response. FindTasks does exactly what I was looking for.

I have one issue though - I have multiple findtasks define in the application and the second one doesn't run at all. The executeComplete method is not returning anything.

If someone can help, I'll greatly appreciate that.

Re: Querying multiple/all layers in multiple in multiple mapservers?

psingh — Wed, 11 May 2011 22:44:51 GMT

I just added a "fault" statement in the call and it is indeed failing.

This is the error:

TypeError: Error #1010: A term is undefined and has no properties.
at FindTask/executeCameras()
at FindTask/__cameraTask_executeComplete()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at com.esri.ags.tasks::FindTask/handleDecodedObject()
at Function/http://adobe.com/AS3/2006/builtin::call()
at com.esri.ags.tasks::BaseTask/handleResult()
at Function/<anonymous>()
at mx.rpc::Responder/result()
at mx.rpc::AsyncToken/http://www.adobe.com/2006/flex/mx/internal::applyResult()
at mx.rpc.events::ResultEvent/http://www.adobe.com/2006/flex/mx/internal::callTokenResponders()
at mx.rpc.http.mxml::HTTPService/http://www.adobe.com/2006/flex/mx/internal::dispatchRpcEvent()
at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::resultHandler()
at mx.rpc::Responder/result()
at mx.rpc::AsyncRequest/acknowledge()
at DirectHTTPMessageResponder/completeHandler()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/onComplete()