ItemRenderer for access in the spark list

Similar Questions

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  By default the spark list supports virtualization (which is cool), but I came across a problem with the list create all of the itemrenderers even when useVirtualization is set to true. After some debugging and the samples I made, it became clear he did not define the width and height on the image within the itemRenderer.

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  <?xml version="1.0" encoding="utf-8"?>
  <s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009" 
                      xmlns:s="library://ns.adobe.com/flex/spark" 
                      xmlns:mx="library://ns.adobe.com/flex/mx" 
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       <fx:Script>
            <![CDATA[
                 import mx.events.FlexEvent;
  
                 protected function itemrenderer1_creationCompleteHandler(event:FlexEvent):void
                 {
                      trace("created " + this.data);
                 }
  
            ]]>
       </fx:Script>
       
       <!-- Without setting a specific height it will not work in virtualization! -->
       
       <mx:Image height="187" width="280" source="{data}" />
       
  </s:ItemRenderer>
  
  

  https://bugs.Adobe.com/jira/browse/SDK-23621

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  Hello

  I enclose the screenshot and the code snippet, as a result of the screenshot, I explain my problem.

  

  Here you can see two panels with the same data, but each Panel is to have his own dataprovider. I used for combobox itemRenderer. When the type of the parameter 'Date' is selected in one of the row of each Panel, then at that time date combobox must become visible, as I'll have different date formats in the comboxbox. I used the outerDocument to call the method in the actionscript code, but I cannot access the id of the combobox of date format. As I rolled alert to check is I am able to call the method, tht works very well. Please help me how to control the visibility(visible=true/visible=false) of the list box dropdown date format on the choice of date in the parameter type combo box. Also, I paste the snippet of code here...

  < mx:Script >
  <! [CDATA]
  Import mx.controls.Alert;
  Import mx.controls.ComboBox;
  Import mx.events.CloseEvent;
  TO check the status on ComboBox
  public void closeHandler(event:Event):void {}
  Alert.Show ('Hello');
  If (SelectedIndex of the ComboBox (event.target) == 1)
  Alert.Show ('parentApplication.paramType')
  
  inputGrid.paramType.visible = true;
  parentApplication.comboD.visible = true;
  on the other
  parentApplication.comboD.visible = false;
  }
  []] >
  < / mx:Script >
  < mx:XMLList id = 'service' xmlns = "" >
  < parameter >
  < parameterName > Param - 1 < / parameterName >
  < comboSlctIdx > 0 < / comboSlctIdx >
  < validSlctIdx > 0 < / validSlctIdx >
  
  < / parameter >
  
  < parameter >
  < parameterName > Param - 2 < / parameterName >
  < comboSlctIdx > 0 < / comboSlctIdx >
  < validSlctIdx > 0 < / validSlctIdx >
  < dtSlctIdx > 0 < / dtSlctIdx >
  
  < / parameter >
  < / mx:XMLList >
  < mx:XMLList id = "comboDS" xmlns = "" >
  < parameter >
  < label > String < / label >
  < data > true < / data >
  < / parameter >
  < parameter >
  < label > Date < / label >
  < data > true < / data >
  < / parameter >
  < parameter >
  < label > Integer < / label >
  < data > true < / data >
  < / parameter >
  < / mx:XMLList >

  < mx:XMLList id = "comboV" xmlns = "" >
  < parameter >
  < label > required < / label >
  < data > true < / data >
  < / parameter >
  < parameter >
  < label > not required < / label >
  < data > true < / data >
  < / parameter >
  
  < / mx:XMLList >

  < mx:XMLList id = "comboD" xmlns = "" >
  < parameter >
  < label > JJ/MM/AAAA < / label >
  < data > true < / data >
  < / parameter >
  < parameter >
  < label > JJ/MM/AAAA < / label >
  < data > true < / data >
  < / parameter >
  < parameter >
  < label > AAAA/MM/JJ < / label >
  < data > true < / data >
  < / parameter >
  < / mx:XMLList >

  < mx:XMLList id = "service1" xmlns = "" >
  < parameter >
  < parameterName > Param - 1 < / parameterName >
  < comboSlctIdx > 0 < / comboSlctIdx >
  < validSlctIdx > 0 < / validSlctIdx >
  < / parameter >
  
  < parameter >
  < parameterName > Param - 2 < / parameterName >
  < comboSlctIdx > 0 < / comboSlctIdx >
  < validSlctIdx > 0 < / validSlctIdx >
  < dtSlctIdx > 0 < / dtSlctIdx >
  < / parameter >
  < / mx:XMLList >

  < mx:XMLList id = "comboDS1" xmlns = "" >
  < parameter >
  < label > String < / label >
  < data > true < / data >
  < / parameter >
  < parameter >
  < label > Date < / label >
  < data > true < / data >
  < / parameter >
  < parameter >
  < label > Integer < / label >
  < data > true < / data >
  < / parameter >
  < / mx:XMLList >

  < mx:XMLList id = "comboV1" xmlns = "" >
  < parameter >
  < label > required < / label >
  < data > true < / data >
  < / parameter >
  < parameter >
  < label > not required < / label >
  < data > true < / data >
  < / parameter >
  
  < / mx:XMLList >

  < mx:XMLList id = "comboD1" xmlns = "" >
  < parameter >
  < label > JJ/MM/AAAA < / label >
  < data > true < / data >
  < / parameter >
  < parameter >
  < label > JJ/MM/AAAA < / label >
  < data > true < / data >
  < / parameter >
  < parameter >
  < label > AAAA/MM/JJ < / label >
  < data > true < / data >
  < / parameter >
  < / mx:XMLList >

  < mx:DataGrid id = "inputGrid" width = "100%" dataProvider = "{services}" >
  < mx:columns >
  < mx:DataGridColumn headerText = "Parameter name" dataField = "parameterName" fontFamily = "Arial" letterSpacing = "1" textAlign = "center" / >
  < mx:DataGridColumn headerText = "Parameter Type" fontFamily = "Arial" letterSpacing = "1" textAlign = "center" >
  < mx:itemRenderer >
  < mx:Component >
  < mx:HBox horizontalAlign = "center" >
  
  < mx:ComboBox id = dataProvider = "{parentApplication.comboDS"paramType"}" selectedIndex = "{data.comboSlctIdx}"close = "outerDocument.closeHandler (event);" / >
  
  < / mx:HBox >
  < / mx:Component >
  < / mx:itemRenderer >
  < / mx:DataGridColumn >
  
  < mx:DataGridColumn headerText = "Validation" fontFamily = "Arial" letterSpacing = "1" textAlign = "center" >
  < mx:itemRenderer >
  < mx:Component >
  < mx:HBox horizontalAlign = "center" >
  < mx:ComboBox dataProvider = "{parentApplication.comboV}" selectedIndex = "{data.validSlctIdx}" / > "
  < / mx:HBox >
  
  < / mx:Component >
  < / mx:itemRenderer >
  < / mx:DataGridColumn >
  < mx:DataGridColumn headerText = "" >
  < mx:itemRenderer >
  < mx:Component >
  < mx:HBox horizontalAlign = "center" >
  "< mx:ComboBox id = dataProvider =" {parentApplication.comboD "dtType"} "selectedIndex =" {data.dtSlctIdx} "visible ="false"/ >
  < / mx:HBox >
  
  < / mx:Component >
  < / mx:itemRenderer >
  < / mx:DataGridColumn >
  
  < / mx:columns >
  < / mx:DataGrid >

  Thanxs

  Gerard

  follow these steps:

  -the change of Manager from the drop-down list type, change a property of the row (data)

  change = "{Data .selectedParamType = paramType.SelectedItem.Label.ToString () ;} ', for

  -Change the visible property of the combo of date:

  visible = "{Data .selectedParamType =='Date ' '} ', for"

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