RE: [flexcoders] Is there an easy way to do this

Tracy Spratt Fri, 20 May 2005 10:06:21 -0700

Here is an example app:

Tracy

<?xml version="1.0" encoding="utf-8"?>

<mx:Application xmlns:mx="http://www.macromedia.com/2003/mxml"

initialize="sortSetDP()">

<mx:Script>

<![CDATA[

/*************************************************************************************

private function sortSetDP(sMode:String):Void

{

var aTemp:Array = aApplesMaster.concat();

switch (sMode)

{

case "top":

aTemp.sort(cfAppleSales,Array.DESCENDING );

dgAppleSales.dataProvider = aTemp.splice(0,3);

dgAppleSales.rowCount = aTemp.length;

break;

case "bottom":

aTemp.sort(cfAppleSales );

dgAppleSales.dataProvider = aTemp.splice(0,3);

dgAppleSales.rowCount = aTemp.length;

break;

default:

dgAppleSales.dataProvider = aApplesMaster;

dgAppleSales.rowCount = aApplesMaster.length;

break;

}

}//sortSetDP

/*************************************************************************************

Compare function. Receives two array elements as arguments

private function cfAppleSales(oElementA:Object,oElementB:Object):Number

{

var nQtyA:Number = oElementA.qty; //get the A element quantity value

var nQtyB:Number = oElementB.qty; //get the B element quantity value

if (nQtyA > nQtyB) { //compare the quantity values, and return the appropriate value

return 1;

}

else if (nQtyB > nQtyA) {

return -1;

}

return 0;

}//cfAppleSales

]]>

</mx:Script>

<mx:Array id="aApplesMaster">

<mx:Object>

<label>Shopper1</label>

</mx:Object>

<mx:Object>

<label>Shopper2</label>

</mx:Object>

<mx:Object>

<label>Shopper3</label>

</mx:Object>

<mx:Object>

<label>Shopper4</label>

</mx:Object>

<mx:Object>

<label>Shopper5</label>

</mx:Object>

<mx:Object>

<label>Shopper6</label>

</mx:Object>

<mx:Object>

<label>Shopper7</label>

</mx:Object>

<mx:Object>

<label>Shopper8</label>

</mx:Object>

</mx:Array>

<mx:HBox>

<mx:VBox>

<mx:Button label="Show Top Three Customers" height="30" click="sortSetDP('top')"/>

<mx:Button label="Show Bottom Three Customers" height="30" click="sortSetDP('bottom')"/>

<mx:Button label="Show All Customers" height="30" click="sortSetDP('all')"/>

</mx:VBox>

<mx:DataGrid id="dgAppleSales" >

<mx:columns>

<mx:Array>

<mx:DataGridColumn headerText="Shopper" columnName="label" />

<mx:DataGridColumn headerText="Apples Purchased" columnName="qty" />

</mx:Array>

</mx:columns>

</mx:DataGrid>

</mx:HBox>

</mx:Application>

From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Wednesday, May 18, 2005 9:29 PM
To: [email protected]
Subject: Re: [flexcoders] Is there an easy way to do this

I tried what you said and what I thought was the Array.sort command but I can not get it to work. What I am trying to do in a nutshell is sort the array by showing the top three numbers in order on either a button or a label next to there respective Shoppers. I looked online for info on the Array.sort() function but I could not see a good example of it in use?

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.macromedia.com/2003/mxml">
<mx:Array id="apples">
  <mx:Object>
   <label>Shopper1</label>
   <Number>5</Number>
  </mx:Object>
  <mx:Object>
   <label>Shopper2</label>
   <Number>7</Number>
  </mx:Object>
<mx:Object>
   <label>Shopper3</label>
   <Number>0</Number>
  </mx:Object>
<mx:Object>
   <label>Shopper4</label>
   <Number>4</Number>
  </mx:Object>
  <mx:Object>
   <label>Shopper5</label>
   <Number>1</Number>
  </mx:Object>
<mx:Object>
   <label>Shopper6</label>
   <Number>0</Number>
  </mx:Object>

<mx:Object>
   <label>Shopper7</label>
   <Number>0</Number>
  </mx:Object>
<mx:Object>
   <label>Shopper8</label>
   <Number>0</Number>
  </mx:Object>

</mx:Array>
<mx:Script>
  <![CDATA[
   public function getorder():Void
   {
    Array.apples.sort(label,Number)
firstplaceshopper.label=apples[0].label
mostapples.label=apples[0].Number
secondplaceshopper.label=apples[1].label
secondmostapples.label=apples[1].Number
thirdplaceshopper.label=apples[2].label
thirdmostapples.label=apples[2].Number
   }
  ]]>
</mx:Script>


<mx:HBox id="whohasthemost" visible="true">

<mx:Button label="firstshopper" />
<mx:Button width="100" id="firstplaceshopper" />
<mx:Button label="Number of apples" />
<mx:Button width="30" id="mostapples"/>

<mx:Button label="secondshopper" />
<mx:Button width="100" id="secondplaceshopper" />
<mx:Button label="Number of apples" />
<mx:Button width="30" id="secondmostapples"/>
<mx:Button label="thirdshopper" />
<mx:Button width="100" id="thirdplaceshopper" />
<mx:Button label="Number of apples" />
<mx:Button width="30" id="thirdmostapples"/>

<mx:Button label="gettopthree" click="getorder()"/>

</mx:HBox>
</mx:Application>

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RE: [flexcoders] Is there an easy way to do this

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