topic Re: ArcGIS Services work in Silverlight app but not in the JavaScript API in ArcGIS JavaScript Maps SDK Questions

ArcGIS Services work in Silverlight app but not in the JavaScript API

LawrenceDhliwayo — Fri, 27 May 2011 13:19:38 GMT

Hi collegues,

I have a couple of services created in ArcGIS Server 9.3.1 and they work well in my silverlight application. However trying to use the same services using the JS API, they don't work. I am new to the JS API and am wondering if there is any confuguration which I need to do. I have tried pasting the server url in and clicking the "ArcGIS JavaScript" link and it gives a blank page. My web server is located on the same machine as my GIS server. The machine is a virtual machine running window server 2003.

The services a Dynamic service layers.

I am happy to provide any addition info, otherwise thank you for helping me out.

Lawrence

Re: ArcGIS Services work in Silverlight app but not in the JavaScript API

StephenLead — Mon, 30 May 2011 02:24:48 GMT

Hi Lawrence,

You could try inserting your layer's URL into the Dynamic map sample at http://help.arcgis.com/en/webapi/javascript/arcgis/help/jssamples_start.htm#jssamples/map_dynamic.html

Does anything display? If your server is public-facing, can you tell us the URL so we can test it?

Steve

Re: ArcGIS Services work in Silverlight app but not in the JavaScript API

nicogis — Tue, 31 May 2011 10:53:36 GMT

Have you check using fiddler?

Re: ArcGIS Services work in Silverlight app but not in the JavaScript API

LawrenceDhliwayo — Thu, 02 Jun 2011 10:07:26 GMT

Hi Lawrence,

You could try inserting your layer's URL into the Dynamic map sample at http://help.arcgis.com/en/webapi/javascript/arcgis/help/jssamples_start.htm#jssamples/map_dynamic.html

Does anything display? If your server is public-facing, can you tell us the URL so we can test it?

Steve

Hi Steve,

Many thanks for the reply and apologies for my late response.

I created a new Dynamic map service it works in my JSAPI. I suppose I have to do the same for all my services that work in the Silverlight and not in the JSAPI. I tested the old Dymamic map services using the samples and they dont work. Unfortunately my urls are all private and i am not allowed to publish them outside out intranet.

Thanks,
Lawrence

Re: ArcGIS Services work in Silverlight app but not in the JavaScript API

LawrenceDhliwayo — Thu, 02 Jun 2011 10:30:04 GMT

Have you check using fiddler?

Hi Ciava,

I have test using fiddler, I get "500 Internal Server Error". While investigating this, I stumbled upon a similar thread http://forums.arcgis.com/threads/7349-Cached-map-services-no-tiles-returned-when-accessed-by-JavaScript-in-service-catalog which participated. I looked at my log file C:\inetpub\wwwroot\yourinstancename\rest and found the following;

Log Entry : 02/06/2011 12:11:06
ERROR:Object reference not set to an instance of an object. :: at ESRI.ArcGIS.REST.RequestHandler.ProcessRequest()
at ESRI.ArcGIS.REST.RestHttpHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context)
http://myserver/arcgis/rest/services/myservice/MapServ

I could go on create the services as this appears to solve the problem. Also I have done some further checks and noticed that some services work while others do not. If i find out why I will post the answer here.

Many thanks.
Lawrence