Aide

lifeEsri

Bonsoir tt le monde
je voudrai créer un combobox qui contient la liste des couches de mon service publier sous arcgis server et un autre combobox qui contient la liste des fields de chaque couche sélectionnées dans le premier combobox
et merci d'avance .

rscheitlin

Life esri,

   Here is some example code for that:

<?xml version="1.0" encoding="utf-8"?> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"                 xmlns:s="library://ns.adobe.com/flex/spark"                 xmlns:mx="library://ns.adobe.com/flex/mx"                minWidth="955" minHeight="600"                xmlns:esri="http://www.esri.com/2008/ags"                creationComplete="application1_creationCompleteHandler(event)">     <s:layout>         <s:VerticalLayout paddingLeft="20" paddingTop="20" paddingRight="20" paddingBottom="20"/>     </s:layout>     <fx:Declarations>         <!-- Place non-visual elements (e.g., services, value objects) here -->     </fx:Declarations>     <fx:Script>         <![CDATA[             import com.esri.ags.tasks.JSONTask;                          import mx.collections.ArrayCollection;             import mx.events.FlexEvent;             import mx.rpc.AsyncResponder;             import mx.rpc.Fault;                          import spark.events.IndexChangeEvent;                          protected function application1_creationCompleteHandler(event:FlexEvent):void             {                 var jt:JSONTask = new JSONTask("http://server.arcgisonline.com/ArcGIS/rest/services");                 jt.showBusyCursor = true;                 var uv:URLVariables = new URLVariables("f=pjson");                 jt.execute(uv, new AsyncResponder(result,fault));                                  function result(event:Object, token:Object = null):void                 {                     var msArray:ArrayCollection = new ArrayCollection();                     for(var s:int=0; s<event.services.length; s++){                         if(event.services.type == "MapServer"){                             msArray.addItem(event.services.name);                         }                     }                                          MSdropdown.dataProvider = msArray;                 }                                  function fault(event:Fault, token:Object = null):void                 {                     trace(event.faultString);                 }             }                          protected function MSdropdown_changeHandler(event:IndexChangeEvent):void             {                 var jt:JSONTask = new JSONTask("http://server.arcgisonline.com/ArcGIS/rest/services/" + MSdropdown.selectedItem + "/MapServer");                 jt.showBusyCursor = true;                 var uv:URLVariables = new URLVariables("f=pjson");                 jt.execute(uv, new AsyncResponder(result,fault));                                  function result(event:Object, token:Object = null):void                 {                     var msArray:ArrayCollection = new ArrayCollection();                     for(var s:int=0; s<event.layers.length; s++){                         var lo:Object = {                             label: event.layers.name,                             id: event.layers.id                         }                         msArray.addItem(lo);                     }                                          MSLyrsdropdown.dataProvider = msArray;                 }                                  function fault(event:Fault, token:Object = null):void                 {                     trace(event.faultString);                 }             }                                       protected function MSLyrsdropdown_changeHandler(event:IndexChangeEvent):void             {                 var jt:JSONTask = new JSONTask("http://server.arcgisonline.com/ArcGIS/rest/services/" + MSdropdown.selectedItem + "/MapServer/" + MSLyrsdropdown.selectedItem.id);                 jt.showBusyCursor = true;                 var uv:URLVariables = new URLVariables("f=pjson");                 jt.execute(uv, new AsyncResponder(result,fault));                                  function result(event:Object, token:Object = null):void                 {                     var msArray:ArrayCollection = new ArrayCollection();                     for(var s:int=0; s<event.fields.length; s++){                         var fo:Object = {                             label: event.fields.alias,                             name: event.fields.name                         }                         msArray.addItem(fo);                     }                                          MSLyrFldsdropdown.dataProvider = msArray;                 }                                  function fault(event:Fault, token:Object = null):void                 {                     trace(event.faultString);                 }             }                      ]]>     </fx:Script>     <s:HGroup width="100%" gap="20" verticalAlign="middle">         <s:Label text="Map Service:" />         <s:DropDownList id="MSdropdown" width="300" prompt="Choose Map Service" change="MSdropdown_changeHandler(event)"/>     </s:HGroup>     <s:HGroup width="100%" gap="20" verticalAlign="middle">         <s:Label text="Map Service Layers:" />         <s:DropDownList id="MSLyrsdropdown" width="300" prompt="Choose Map Service Layer" change="MSLyrsdropdown_changeHandler(event)"                         labelField="label"/>     </s:HGroup>     <s:HGroup width="100%" gap="20" verticalAlign="middle">         <s:Label text="Map Service Layer Fields:" />         <s:DropDownList id="MSLyrFldsdropdown" width="300" prompt="Choose Map Service Layer Field"/>     </s:HGroup> </s:Application>

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