FindTask练习

<?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">
    <fx:Script>
        <![CDATA[
            import com.esri.ags.Graphic;
            import com.esri.ags.events.FindEvent;
            import com.esri.ags.geometry.Geometry;

            private function doFind():void
            {
                findTask.execute(myFindParams);

            }
            private function executeCompleteHandler(event:FindEvent):void 
            {
                myGraphicsLayer.clear();
                var graphic:Graphic;
                resultSummary.text = "找到" + event.findResults.length + "结果.";
                var resultCount:int = event.findResults.length;
                for (var i:Number = 0; i < resultCount; i++)
                {
                    graphic = event.findResults[i].feature;
                    graphic.toolTip = event.findResults[i].foundFieldName + ": " + event.findResults[i].value;
                    
                    switch (graphic.geometry.type)
                    {
                        case Geometry.MAPPOINT:
                        {
                            graphic.symbol = sms;
                            break;
                        }
                        case Geometry.POLYLINE:
                        {
                            graphic.symbol = sls;
                            break;
                        }
                        case Geometry.POLYGON:
                        {
                            graphic.symbol = sfs;
                            break;
                        }
                    }
                    myGraphicsLayer.add(graphic);
                }

            }
        ]]>
    </fx:Script>
    <fx:Declarations>
        <!-- 将非可视元素（例如服务、值对象）放在此处 -->
        <!-- Symbol for Find Result as Polyline -->
        <esri:SimpleLineSymbol id="sls"
                               width="3"
                               alpha="0.9"
                               color="0xFFFF00"
                               style="solid"/>
        
        <!-- Symbol for Find Result as Point -->
        <esri:SimpleMarkerSymbol id="sms"
                                 alpha="0.9"
                                 color="0xFFFF00"
                                 size="11"
                                 style="cross">
            <esri:SimpleLineSymbol color="0x000000"/>
        </esri:SimpleMarkerSymbol>
        
        <!-- Symbol for Find Result as Polygon -->
        <esri:SimpleFillSymbol id="sfs"
                               alpha="0.7"
                               color="0xFFFF00"/>

        <esri:FindTask id="findTask" executeComplete="executeCompleteHandler(event)"
                       url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer"/>
        <esri:FindParameters id="myFindParams" returnGeometry="true" contains="true"
                              searchText="{qText}" layerIds="[0,1,2]" searchFields="[CITY_NAME,NAME,SYSTEM,STATE_ABBR,STATE_NAME]"/>
                            
        
    </fx:Declarations>
    <s:layout>
        <s:VerticalLayout paddingTop="10" paddingLeft="10" paddingRight="10"/>
    </s:layout>
    <s:BorderContainer width="100%" height="40" backgroundColor="0xDDDDFF" borderVisible="false">
        <s:layout>
            <s:HorizontalLayout horizontalAlign="center"
                                paddingLeft="20"
                                paddingTop="10"/>
        </s:layout>
        <s:TextInput id="qText" text="Paradise" enter="doFind()"/>
        <s:Button label="查询" click="doFind()"/>
    </s:BorderContainer>
    <s:Label id="resultSummary" height="15"/>
    <mx:HDividedBox width="100%" height="100%">
        <esri:Map id="myMap">
            <esri:ArcGISDynamicMapServiceLayer
                url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer"/>
            <esri:GraphicsLayer id="myGraphicsLayer"/>
        </esri:Map>
        <mx:DataGrid width="40%" height="100%" dataProvider="{findTask.executeLastResult}">
            <mx:columns>
                <mx:DataGridColumn width="70"
                                   dataField="layerId"
                                   headerText="图层ID" />
                <mx:DataGridColumn dataField="layerName" headerText="图层名字"/>
                <mx:DataGridColumn dataField="foundFieldName" headerText="已找到图层"/>
                <mx:DataGridColumn dataField="value" headerText="图层值"/>
            </mx:columns>

        </mx:DataGrid>
            
        
    </mx:HDividedBox>
</s:Application>