<?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"> <s:layout> <s:VerticalLayout gap="10" paddingBottom="10" paddingLeft="10" paddingRight="10" paddingTop="10" /> </s:layout> <fx:Script> <![CDATA[ import com.esri.ags.events.LayerEvent; import com.esri.ags.layers.FeatureLayer; import com.esri.ags.layers.supportClasses.Field; import com.esri.ags.layers.supportClasses.LayerDetails; import mx.controls.Alert; import mx.controls.Label; import spark.components.HGroup; private var fLayer:FeatureLayer = null; protected function onInitLayerClick(event:MouseEvent):void { fLayer = new FeatureLayer(txtUrl.text); fLayer.outFields = new Array("*"); fLayer.addEventListener(LayerEvent.LOAD, onLayerLoad); fLayer.addEventListener(LayerEvent.LOAD_ERROR, onLayerLoadError); dispatchEvent(new LayerEvent(LayerEvent.LOAD, fLayer)); } protected function onLayerLoad(event:LayerEvent):void { var layerDetails:LayerDetails = fLayer.layerDetails; var fields:Array = layerDetails.fields; groupContainer.removeAllElements(); for each (var field:Field in fields) { var hGroup:HGroup = new HGroup(); hGroup.gap = 5; var lblName:Label = new Label(); lblName.width = 200; lblName.text = "Name: " + field.name + ";"; hGroup.addElement(lblName); var lblAlias:Label = new Label(); lblAlias.width = 200; lblAlias.text = "Alias: " + field.alias + ";"; hGroup.addElement(lblAlias); var lblNullable:Label = new Label(); lblNullable.width = 100; lblNullable.text = field.nullable ? "Nullable" : "Not nullable;"; hGroup.addElement(lblNullable); var lblType:Label = new Label(); lblType.width = 100; switch (field.type) { case Field.TYPE_BLOB: lblType.text = "Is Blob;"; break; case Field.TYPE_DATE: lblType.text = "Is date;"; break; case Field.TYPE_DOUBLE: lblType.text = "Is double;"; break; case Field.TYPE_GEOMETRY: lblType.text = "Is geometry;"; break; case Field.TYPE_GUID: lblType.text = "Is GUID;"; break; case Field.TYPE_GLOBAL_ID: lblType.text = "Is global id;"; break; case Field.TYPE_INTEGER: lblType.text = "Is integer;"; break; case Field.TYPE_OID: lblType.text = "Is object id;"; break; case Field.TYPE_RASTER: lblType.text = "Is raster;"; break; case Field.TYPE_SINGLE: lblType.text = "Is single;"; break; case Field.TYPE_SMALL_INTEGER: lblType.text = "Is short;"; break; case Field.TYPE_STRING: lblType.text = "Is text;"; break; case Field.TYPE_XML: lblType.text = "Is xml;"; break; } hGroup.addElement(lblType); var lblEditable:Label = new Label(); lblEditable.width = 100; lblEditable.text = field.editable ? "Editable" : "Not editable;"; hGroup.addElement(lblEditable); if (field.length > 0) { var lblLength:Label = new Label(); lblLength.width = 100; lblLength.text = "Field length: " + field.length; hGroup.addElement(lblLength); } groupContainer.addElement(hGroup); } } protected function onLayerLoadError(event:LayerEvent):void { Alert.show(event.fault.message.toString(), "Layer is not loaded"); } ]]> </fx:Script> <s:TextInput id="txtUrl" width="100%" text="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Network/USA/MapServer/67"/> <s:Button label="Initialize layer" click="onInitLayerClick(event)"/> <s:VGroup width="100%" height="100%" gap="5"> <s:Scroller width="100%" height="100%"> <s:VGroup height="100%" width="100%" id="groupContainer"/> </s:Scroller> </s:VGroup> </s:Application>
P.S. SDK 4.9.0; ArcGIS API for FLEX 3.2
