flexはwebserviceのカスタムクラスを呼び出す方法です。

 
public class ReturnResult 
{ 
public int curIndex { get; set; } 
public DataTable idxList { get; set; } 
} 
//        
[WebMethod(Description = "！！！       ,      web.config ")] 
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 = "   <b>   </b>       (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 = "   <b>   </b>     Link     (ReturnResult)，strTb,eg:PanView;strImgName,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> 
<!--       （    、   ）     --> 
<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>