<?xml version="1.0" encoding="utf-8"?>
<mx:Application
  xmlns:mx="http://www.adobe.com/2006/mxml"
  creationComplete="initApp()"
  layout="absolute">

  <mx:Script>
  <![CDATA[
    import mx.events.ListEvent;
    import mx.collections.ArrayCollection;

    private var pList:ArrayCollection = null;
  
    private function initApp():void
    {
      pList = new ArrayCollection();
      pList.addItem({
          name: "太郎",
          adrs: "東京"
      });
      pList.addItem({
          name: "花子",
          adrs: "長崎"
      });
      pList.addItem({
          name: "ああ",
          adrs: "福岡"
      });
      cDataGrid.dataProvider = pList;
    }
    
    private function onItemClick(e:ListEvent):void
    {
      var _s:String = cDataGrid.selectedItem.adrs as String;
      if (_s.indexOf(cText.text) != -1)
      {
        cDataGrid.selectedIndex = -1;
        trace("選択できません");
      }
    }
  ]]>
  </mx:Script>
  
  <mx:TextInput x="196" y="10" id="cText" text="長崎" width="238"/>
  <mx:Text x="10" y="12" text="住所に次の文字を含む時は選択できない"/>
  
  <mx:DataGrid
    x="10" y="40" width="424" height="200"
    itemClick="onItemClick(event)"
    id="cDataGrid">
    <mx:columns>
      <mx:DataGridColumn headerText="氏名" dataField="name"/>
      <mx:DataGridColumn headerText="住所" dataField="adrs"/>
    </mx:columns>
  </mx:DataGrid>

</mx:Application>

private function onRollOut(e:Event):void
{
  if (cDataGrid.selectedIndex == -1)
    return;
  
  var _s:String = cDataGrid.selectedItem.adrs as String;
  if (_s.indexOf(cText.text) != -1)
  {
    cDataGrid.selectedIndex = -1;
    trace("選択できません");
  }
}