topic Re: Cancel edit event problem in ArcGIS API for Flex Questions

Cancel edit event problem

Anonymous User — Wed, 05 Sep 2012 10:20:46 GMT

Original User: arslansai

hello.
how correct cancel edit event without undo?

sample

private function editLayerStart(event:FeatureLayerEvent):void {       event.preventDefault(); }

don't work
i use editor component

[ATTACH=CONFIG]17487[/ATTACH]

[ATTACH=CONFIG]17488[/ATTACH]

Re: Cancel any event problem

IvanBespalov — Sun, 12 Dec 2021 02:44:29 GMT

By default this event is not cancelable.
FeatureLayerEvent

FeatureLayerEvent () Constructor
public function FeatureLayerEvent(type:String, featureLayer:FeatureLayer = null, cancelable:Boolean = false)
Creates a new FeatureLayerEvent.

Parameters
type:String â?? The event type; indicates the action that triggered the event.

featureLayer:FeatureLayer (default = null) â?? Reference to the associated layer.

cancelable:Boolean ( default = false) â??   Specifies whether the behavior associated with the event can be prevented.

smthing like this:

protected function onSmthingChange(event:SmthingChangeEvent):void
{
  dispatchEvent(new FeatureLayerEvent(FeatureLayerEvent.EDITS_STARTING, myFeatureLayer, true);
}

protected function editLayerStart(event:FeatureLayerEvent):void
{
  if (event.cancelable)
  {
      event.preventDefault();
  }
  else
  {
      // undo only
  }
}

Re: Cancel edit event problem

Anonymous User — Thu, 06 Sep 2012 04:50:27 GMT

Original User: arslansai

Thank you, that's understandable. I can now cancel the event. Another problem - you can tell how to reset the status of the component editor. I'm canceling the event (add an object for example), but the editor does not respond to it. Sign hanging adding an object.
[ATTACH=CONFIG]17509[/ATTACH][ATTACH=CONFIG]17510[/ATTACH]

Re: Editor not respond when start editing event canceled

IvanBespalov — Sun, 12 Dec 2021 02:44:32 GMT

I have not found a legal way to stop/cancel the action started by Editor component.
The only solution that I see - creating your own Editor componet
or remove/add editor each time you prevent start editing :cool:

<?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:esri="http://www.esri.com/2008/ags"
      initialize="application_initializeHandler(event)">
 <s:layout>
  <s:HorizontalLayout/>
 </s:layout>
 
 <fx:Style>
  @namespace esri "http://www.esri.com/2008/ags";
  
  esri|Editor
  {
   skin-class: ClassReference("assets.skins.EditorSkin"); /* undo/redo buttons commented */
  }
 </fx:Style>
 
 <fx:Script>
  <![CDATA[   
   import com.esri.ags.components.Editor;
   import com.esri.ags.events.FeatureLayerEvent;
   import com.esri.ags.tasks.GeometryService;
   
   import mx.events.FlexEvent;
   
   private var myEditor:Editor;
   private var geometryService:GeometryService = new GeometryService("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer");
   
   protected function application_initializeHandler(event:FlexEvent):void
   {
    myEditor = new Editor();
    myEditor.map = myMap;
    myEditor.featureLayers = [ points, fireAreas ];
    myEditor.geometryService = geometryService;
    myEditor.toolbarVisible = true;
    
    editorHolder.addElement(myEditor);
   }

   protected function editsStartingHandler(event:FeatureLayerEvent):void
   {
    var addingDisabled:Boolean = Math.random() > 0.5;
    
    if (event.adds && event.adds.length > 0 && addingDisabled && event.cancelable)
    {
     event.preventDefault();
     
     editorHolder.removeAllElements();
     
     myEditor = new Editor();
     myEditor.map = myMap;
     myEditor.featureLayers = [ points, fireAreas ];
     myEditor.geometryService = geometryService;
     myEditor.toolbarVisible = true;
     
     editorHolder.addElement(myEditor);
    }
   }

  ]]>
 </fx:Script>
 
 <s:VGroup width="328" height="100%" id="editorHolder" />
 <esri:Map id="myMap" wrapAround180="true">
  <esri:extent>
   <esri:Extent id="sheepfire"
       xmin="-13144000" ymin="4033000" xmax="-13066000" ymax="4099000">
    <esri:SpatialReference wkid="102100"/>
   </esri:Extent>
  </esri:extent>
  <esri:ArcGISTiledMapServiceLayer url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer"/>
  <esri:FeatureLayer id="fireAreas"
         editsStarting="editsStartingHandler(event)"
         mode="snapshot"
         outFields="*"
         url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Fire/Sheep/FeatureServer/2"/>
  <esri:FeatureLayer id="points"
         mode="snapshot"
         editsStarting="editsStartingHandler(event)"
         outFields="*"
         url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Fire/Sheep/FeatureServer/0"/>
 </esri:Map> 
</s:Application>

Re: Cancel edit event problem

Anonymous User — Tue, 11 Sep 2012 05:29:44 GMT

Original User: arslansai

i did it.

(EditorSkin)(myEditor.getChildAt(0)).currentState = "normal"

it is reset editor status to normal.