Simple chart data tip question

Question

Hi,
If i have a graph with let's say month names on x-axis and some numeric values on y-axis, when over specific chart item tooltip displays both month name and numeric value. How can i achive that tooltip displays only let's say numeric value (y-axis value) and not also month name (x-axis value)?
Thanks in advance,
Best regards

Answer 1

Yes as above and as below.  Calling you dataTipFunction from the Chart tag, whatever type of chart it may be.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" >
    <mx:Script>
        <![CDATA[
        import mx.charts.HitData;
import mx.collections.ArrayCollection;
        [Bindable]
        private var expensesAC:ArrayCollection = new ArrayCollection( [
            { Month: "Jan", Profit: 2000, Expenses: 1500, Amount: 450 },
            { Month: "Feb", Profit: 1000, Expenses: 200, Amount: 600 },
            { Month: "Mar", Profit: 1500, Expenses: 500, Amount: 300 },
            { Month: "Apr", Profit: 1800, Expenses: 1200, Amount: 900 },
            { Month: "May", Profit: 2400, Expenses: 575, Amount: 500 } ]);
             private function myDataTipFxn(hd:HitData):String {
                    var dt:String = "Profit = " + hd.item.Profit;
                    return dt;
        ]]>
    </mx:Script>
    <mx:LineChart id="linechart" color="0x323232" height="259"
       showDataTips="true" dataProvider="{expensesAC}"
       dataTipFunction="myDataTipFxn" x="88.5" y="63">
       <mx:horizontalAxis>
           <mx:CategoryAxis categoryField="Month"/>
       </mx:horizontalAxis>
       <mx:series>
           <mx:LineSeries yField="Profit" form="curve" displayName="Profit"/>
           <mx:LineSeries yField="Expenses" form="curve" displayName="Expenses"/>
           <mx:LineSeries yField="Amount" form="curve" displayName="Amount"/>
       </mx:series>
    </mx:LineChart>
</mx:Application>