Solved! Go to Solution.
<s:TextInput id="qText" width="100%" enter="doSearch()" text="AU" toolTip="You may use % as a wildcard, e.g., A%"/> <s:Button click="doSearch()" label="Search"/>
 {
   
   
     var urltable:String = "http://tfsgis-iisd01:6080/arcgis/rest/services/SARS_WILSON/RELATED_TABLES/FeatureServer/1" //or you can use your feature layer layerDetails informations to get the related table Id.
     var yourTable:FeatureLayer; //Here you're casting the table as a FeatureLayer so it's editable
    yourTable = new FeatureLayer(urltable, null, null) as FeatureLayer;
    yourTable.outFields = ["*"];
    yourTable.definitionExpression = "Office like '" + qText.text + "'";
    myAttributeTable.featureLayer = yourTable
   }
					
				
			
			
				
			
			
				
			
			
			
			
			
			
		
<?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"
      xmlns:esri="http://www.esri.com/2008/ags"
      pageTitle="Related records">
 
 
 <s:layout>
  <s:VerticalLayout gap="0"/>
 </s:layout>
 
 <fx:Script>
  <![CDATA[
   import com.esri.ags.FeatureSet;
   import com.esri.ags.events.FeatureLayerEvent;
   import com.esri.ags.events.MapMouseEvent;
   import com.esri.ags.geometry.Extent;
   import com.esri.ags.tasks.supportClasses.Query;
   import com.esri.ags.tasks.supportClasses.RelationshipQuery;
   
   import mx.controls.Alert;
   import mx.rpc.AsyncResponder;
   
   [Bindable]
   private var selectedObjectID:Number;
   [Bindable]
   private var relatedRecordsCount:Number;
   
   
   
   private function findWells(event:MapMouseEvent):void
   {
    // find wells near the mouse click
    var tol:Number = map.extent.width / map.width * 5;
    var x:Number = event.mapPoint.x;
    var y:Number = event.mapPoint.y;
    var queryExtent:Extent = new Extent(x - tol, y - tol, x + tol, y + tol, event.mapPoint.spatialReference);
    var thisSelectionQuery:Query = new Query();
    thisSelectionQuery.geometry = queryExtent;
    wellsLayer.selectFeatures(thisSelectionQuery, FeatureLayer.SELECTION_NEW);
   }
   
   private function wellsLayer_selectionCompleteHandler(event:FeatureLayerEvent):void
   {
    relatedDatagrid.dataProvider = null;
    // check the first return feature to see if it has any related features
    if (event.features.length > 0)
    {
     relatedTopsQuery.objectIds = [ event.features[0].attributes.OBJECTID ];
     selectedObjectID = event.features[0].attributes.OBJECTID;
     wellsLayer.queryRelatedFeatures(relatedTopsQuery, new AsyncResponder(onResult, onFault));
     function onResult(relatedRecords:Object, token:Object = null):void
     {
      // get related records for the first feature
      var fset:FeatureSet = (relatedRecords[event.features[0].attributes.OBJECTID]);
      if (fset is FeatureSet)
      {
       relatedDatagrid.dataProvider = new ArrayCollection(fset.attributes)
       relatedRecordsCount = fset.attributes.length;
      }
      else
      {
       Alert.show("No related records for well #" + event.features[0].attributes.OBJECTID, "No related records");
       relatedRecordsCount = 0;
      }
     }
     function onFault(info:Object, token:Object = null):void
     {
      map.infoWindow.hide();
      Alert.show(info.toString(), "queryRelatedFeatures Problem");
     }
    }
    else
    {
     map.infoWindow.hide();
     Alert.show("No wells found here, please try somewhere else.", "No features");
    }
   }
   
   protected function saveRelatedRecordsForObjectID(event:MouseEvent):void
   {
    
   }
   
   protected function deleteRelatedRecordsForObjectID(event:MouseEvent):void
   {
    
   }
  ]]>
 </fx:Script>
 
 <fx:Declarations>
  <esri:RelationshipQuery id="relatedTopsQuery"
        outFields="[OBJECTID,API_NUMBER,ELEVATION,FORMATION,TOP]"
        relationshipId="3"/>
 </fx:Declarations>
 
 <s:controlBarLayout>
  <s:VerticalLayout gap="10"
        paddingBottom="7"
        paddingLeft="10"
        paddingRight="10"
        paddingTop="7"/>
 </s:controlBarLayout>
 <s:controlBarContent>
 
  <s:Button click="saveRelatedRecordsForObjectID(event)"
      label="Save"
      visible="{relatedRecordsCount > 0}"/>
  
  <s:Button
   click="deleteRelatedRecordsForObjectID(event)"
   label= "Delete Records"
   visible="{relatedRecordsCount > 0}"/>
  
 </s:controlBarContent>
 
 <esri:Map id="map" mapClick="findWells(event)">
  <esri:extent>
   <esri:Extent xmin="-10854000" ymin="4502000" xmax="-10829000" ymax="4524000">
    <esri:SpatialReference wkid="102100"/>
   </esri:Extent>
  </esri:extent>
  <esri:ArcGISTiledMapServiceLayer url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer"/>
  <esri:ArcGISDynamicMapServiceLayer url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Petroleum/KSPetro/MapServer">
   <esri:visibleLayers>
    <s:ArrayCollection>
     <fx:Number>0</fx:Number>
     <fx:Number>1</fx:Number>
    </s:ArrayCollection>
   </esri:visibleLayers>
  </esri:ArcGISDynamicMapServiceLayer>
  <esri:FeatureLayer id="wellsLayer"
         mode="selection"
         outFields="[completion,plug_date]"
         selectionComplete="wellsLayer_selectionCompleteHandler(event)"
         url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Petroleum/KSPetro/MapServer/0">
   <esri:infoWindowRenderer>
    <fx:Component>
     <esri:LabelDataRenderer>
      <esri:layout>
       <s:VerticalLayout/>
      </esri:layout>
      <esri:label>Well ID {data.OBJECTID}</esri:label>
      <s:Label text="Plug date: {data.plug_date ? new Date(data.plug_date) : 'No date available'}"/>
      <s:Label text="Completion: {data.completion ? new Date(data.completion) : 'No date available'}"/>
     </esri:LabelDataRenderer>
    </fx:Component>
   </esri:infoWindowRenderer>
  </esri:FeatureLayer>
 </esri:Map>
 <s:DataGrid id="relatedDatagrid"
    width="100%" height="45%">
  <s:columns>
   <s:ArrayList>
    <s:GridColumn dataField="OBJECTID" headerText="ID"/>
    <s:GridColumn dataField="API_NUMBER" headerText="API Number"/>
    <s:GridColumn dataField="ELEVATION" headerText="Elevation"/>
    <s:GridColumn dataField="FORMATION" headerText="Formation"/>
    <s:GridColumn dataField="TOP" headerText="Top"/>
   </s:ArrayList>
  </s:columns>
 </s:DataGrid>
 
</s:Application>
					
				
			
			
				
			
			
				
			
			
			
			
			
			
		