topic Re: querytask proxy using actionscript in ArcGIS Viewer for Flex Questions

querytask proxy using actionscript

LefterisKoumis — Wed, 03 Sep 2014 01:20:36 GMT

Hello.

I have to use proxy for the querytask in the actionscript (not in the xml widget config). What is equivalent to <useproxy>true</useproxy> to actionscript?

Is there a property that I can use with the query? I couldn'r find one. Thanks.

var queryBuffer:Query = new Query();

queryBuffer.spatialRelationship = querySpatialRel;

queryBuffer.geometry = geom;

queryBuffer.returnGeometry = true;

queryBufferTask.url=layerConfig.url;

queryBuffer.outSpatialReference = map.spatialReference;

queryBuffer.outFields = layerConfig.outfields;

Re: querytask proxy using actionscript

RobertScheitlin__GISP — Wed, 03 Sep 2014 01:49:48 GMT

Lefteris,

The QueryTask and Query does not have a proxyURL property or anything that you can set. You have to manually add the proxy url to the map service url like this:

myQueryTask.url = "http://gislap183/Poxy/proxy.ashx?http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Louisville/LOJIC_PublicSafety_Louisville/MapServer/3";

Or use a FeatureLayer instead and it has a proxyURL property.

Re: querytask proxy using actionscript

LefterisKoumis — Wed, 03 Sep 2014 06:25:00 GMT

Thank you for the reply, Robert. I followed the suggestion and now I get the error:

Error #2101: The String passed to URLVariables.decode() must be a URL-encoded query string containing name/value pairs.

Do I need to use escape characters for the slashes?

My url was:

queryBufferTask.url= "http://xxx.xxx.xx.xxx/DotNetProxy/proxy.ashx?https://xxx.xxx.xxx.xxx/arcgis/rest/services/Project_PAD/PAD/MapServer/0";

Thanks.

Re: querytask proxy using actionscript

RobertScheitlin__GISP — Wed, 03 Sep 2014 13:51:02 GMT

Lefteris,

It seems that there is an UNDOCUMENTED property of proxyURL on the QueryTask. So just use proxyURL on your QueryTask

Re: querytask proxy using actionscript

LefterisKoumis — Wed, 03 Sep 2014 14:32:25 GMT

Thank you Robert. I can't believe how did I miss the proxyURL since I was checking each property.

Using queryBufferTask.proxyURL= "http://xxx.xxx.xx.xxx/DotNetProxy/proxy.ashx?https://xxx.xxx.xxx.xxx/arcgis/rest/services/Project_PAD/PAD/MapServer/0";

would draw the same error #2101.

However, using the url and the proxyURL, it works.

queryBufferTask.url="https://xxx.xxx.xxx.xxx/arcgis/rest/services/Project_PAD/PAD/FeatureServer/0"

queryBufferTask.proxyURL = "http://xxx.xxx.xxx.xxxx/DotNetProxy/proxy.ashx?";

Re: querytask proxy using actionscript

BjornSvensson — Tue, 09 Sep 2014 15:46:47 GMT

I'm glad the problem got solved.

Just a quick note that the proxyURL is a property of BaseTask, which QueryTask inherits from. It's listed in the documentation at https://developers.arcgis.com/flex/api-reference/com/esri/ags/tasks/QueryTask.html#propertySummary. Make sure to "Show Inherited Public Properties".

Re: querytask proxy using actionscript

RobertScheitlin__GISP — Tue, 09 Sep 2014 19:21:51 GMT

I should have known that. Thanks for the clarification Bjorn.