flex调用webservice中的自定义类

public class ReturnResult
    {
        public int curIndex { get; set; }
        public DataTable idxList { get; set; }
    }
    //测试数据库连接
    [WebMethod(Description = "！！！测试数据库连接,链接字符串在web.config中")]
    public bool conectDB()
    {
        strCon = ConfigurationSettings.AppSettings["sqlConDuke"];
        conn = new SqlConnection(strCon);
        try
        {
            conn.Open();
            return true;
        }
        catch (Exception)
        {
            return false;
        }
        finally
        {
            conn.Close();
        }
    }

[WebMethod(Description = "根据 <b>照片名</b> 获得详细数据(DataTable)，strTb,eg:PanView;strImgName,eg:20131019072740-0000150")]
? ? public DataTable getInfoByImgName(string strTb,string strImgName)
? ? {
? ? ? ? bool ifCon = conectDB();
? ? ? ? if (ifCon)
? ? ? ? {
? ? ? ? ? ? string sql_BfCar = "SELECT * FROM dbo." + strTb + " where ImageName LIKE '%" + strImgName + "%'";
? ? ? ? ? ? da = new SqlDataAdapter(sql_BfCar,conn);
? ? ? ? ? ? myds = new DataSet();
? ? ? ? ? ? da.Fill(myds);
? ? ? ? ? ? return myds.Tables[0];
? ? ? ? }
? ? ? ? else
? ? ? ? {
? ? ? ? ? ? return null;
? ? ? ? }
? ? }


? ? [WebMethod(Description = "根据 <b>照片名</b> 获得所在Link的所有数据(ReturnResult)，strTb,eg:20131019072740-0000150")]
? ? public ReturnResult getLinkDTByImgName(string strTb,string strImgName)
? ? {
? ? ? ? ReturnResult returnResult = new ReturnResult();
? ? ? ? bool ifCon = conectDB();
? ? ? ? if (ifCon)
? ? ? ? {
? ? ? ? ? ? returnResult.curIndex = Convert.ToInt32(getInfoByImgName(strTb,strImgName).Rows[0][0]);
? ? ? ? ? ? string strLinkGuid = getInfoByImgName(strTb,strImgName).Rows[0][1].ToString();
? ? ? ? ? ? string sql_BfCar = "SELECT * FROM dbo." + strTb + " where LinkGuid LIKE '%" + strLinkGuid + "%'";
? ? ? ? ? ? da = new SqlDataAdapter(sql_BfCar,conn);
? ? ? ? ? ? myds = new DataSet();
? ? ? ? ? ? da.Fill(myds);
? ? ? ? ? ? returnResult.idxList = myds.Tables[0];
? ? ? ? ? ? return returnResult;
? ? ? ? }
? ? ? ? else
? ? ? ? {
? ? ? ? ? ? return null;
? ? ? ? }
? ? }

<?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" creationComplete="application1_creationCompleteHandler(event)">
	<fx:Script>
		<![CDATA[
			import mx.collections.ArrayCollection;
			import mx.controls.Alert;
			import mx.events.FlexEvent;
			import mx.rpc.events.FaultEvent;
			import mx.rpc.events.ResultEvent;

			public var arr:ArrayCollection=new ArrayCollection();
			public var aaa:String=new String();
			
			protected function webservice1_faultHandler(event:FaultEvent):void
			{
				Alert.show(event.fault.toString());
			}
			protected function getLinkDTByImgNameHandler(event:ResultEvent):void
			{
//				aaa=this.myweb.getLinkDTByImgName.lastResult.curIndex;
//				arr=this.myweb.getLinkDTByImgName.lastResult.idxList.Tables.Table.Rows;
				
				aaa=event.result.curIndex;
				arr=event.result.idxList.Tables.Table.Rows;
				Alert.show(aaa+" "+arr.length.toString());
			}


			protected function application1_creationCompleteHandler(event:FlexEvent):void
			{
				myweb.getLinkDTByImgName("PanView","20131019072740-0000150");
			}

		]]>
	</fx:Script>
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
		<s:WebService id="myweb" wsdl="http://10.19.1.55/serverPano/WebServiceDuke.asmx?WSDL" fault="webservice1_faultHandler(event)">
			<s:operation name="getLinkDTByImgName" result="getLinkDTByImgNameHandler(event)"></s:operation>
		</s:WebService>
	</fx:Declarations>
</s:Application>