topic Re: GP widget does not accept Multivalue parameter, but job thru REST does...why? syn in ArcGIS Viewer for Flex Questions

GP widget does not accept Multivalue parameter, but job thru REST does...why? syntax?

C_EHoward — Thu, 30 Aug 2012 17:13:52 GMT

I have a GP widget that allows a user to select data layers to be clipped and zipped to a particular extent, in my case, by county. I can successfully have this GP service run if i submit the job through the REST endpoint. I have to submit my layers with the following syntax for my 'layers_to_clip' parameter: ['Layer1','Layer2']. The parameter that selects the county, based on an input list, passes fine.

When I try to run the GP service in Flex through the GP widget, it returns an error. My config file has multivalue:string (something I found the hard way) with a choicelist of layers. When I select more than one layer in my Flex widget interface, I get the error "Problem esriJobFailed Failed." message.

The messages XML in the failed job folder has the Layers_to_Clip input parameter as follows: "Layers to Clip: Dataset 'Layer1';'Layer2' does not exist or is not supported". which leads me to believe that the Flex GP widget does not use the correct syntax to pass a multivalue string list. Can anyone confirm this? How can I get around this?

FWIW, I can get the widget to 'work' if I only select one layer from my list. I say 'work' in quotes since I still cannot see/save my output ZIP file. But I will tackle that issue when I can successfully select more than one layer to download.

Charlene

Re: GP widget does not accept Multivalue parameter, but job thru REST does...why? syn

NeoGeo — Sat, 11 Dec 2021 17:47:39 GMT

Here is a working example using a multivalue parameter with Flex and AGS 10.0 (just the applicable code shown). Layoutelements is the multivalue parameter. I have not been able to get it to function under 10.1 because as far as I can tell the only way to create a service now is to run it from the Desktop, but the Desktop won't allow entry of a multivalue parameter (at least it won't for me because it just grays out the add value button, so if you figure out a workaround for that, let me know.)

Here is the Flex portion:

private var printUtil:PrintUtil;
printUtil =  new PrintUtil(map);

printUtil.LayoutElements = [title,author,locateCoordinateString];


var params:Object = printUtil.getPrintParameters();

exportMapGP.submitJob(params);


 <fx:Declarations>
  <esri:Geoprocessor id="exportMapGP" url="{gpServiceURL}" />
 </fx:Declarations>

Here is the Python portion.

    #Create a dictionary with the element name and element value
    elemSettings = params.get_layoutelements()
    i = 0
    dictionary = dict({})
    for subnode in elementNode:
        elemName = subnode.attrib["name"] 
        elemValue = elemSettings.getRow(i)
        elemValue = elemValue[1:]
        elemValue = elemValue[:-1]
        elemValue = elemValue.replace("*","\n")
        i = i + 1
        logging.info(elemName + ": " + elemValue)
        if elemValue:
            dictionary[elemName] = elemValue
            logging.info(elemName + ": " + elemValue)

Re: GP widget does not accept Multivalue parameter, but job thru REST does...why? syn

C_EHoward — Thu, 05 Sep 2013 13:58:36 GMT

Thanks for the code. I got it to work in 10.....have not attempted at 10.1 yet. I had to move onto other things, but I will be revisiting this, so they better make sure all available parameters in 10 are there in 10.1. I am not holding my breath however since it usually takes users trying to do their work to expose shortcomings