How to add a data driven background colour to spark Datagrid

Here is how one would go about adding a data-driven row background colour to spark DataGrid.

Spark DG defines a rowBackground property, an IGridVisualElement, called to draw each row default's background. That is usually null and gives you a white background.

You can easily override it in mxml, with something like this:

<flex44d:FLEX44DNewDataGrid blah...>

 <flex44d:rowBackground>

  <fx:Component>

   <s:Rect implements="spark.components.gridClasses.IGridVisualElement" width="100%" height="100%">

    <fx:Script>

     <![CDATA[

      import spark.components.DataGrid;

      import spark.components.Grid;

      

      /**

       * @private

       */

      public function prepareGridVisualElement(grid:Grid, rowIndex:int, columnIndex:int):void

      {

       if (!grid.dataProvider || rowIndex >= grid.dataProvider.length)

        rowBackgroundFillColor.color = 0xffffff;

       else {

        rowBackgroundFillColor.color = outerDocument.rowColorFunction(grid.dataProvider.getItemAt(rowIndex));

       } 

      }

      

     ]]>

    </fx:Script>  

    <s:fill>

     <!--- @private -->   

     <s:SolidColor id="rowBackgroundFillColor"/>

    </s:fill>

   </s:Rect>

  </fx:Component>

 </flex44d:rowBackground>

</flex44d:FLEX44DNewDataGrid>

Your rowColorFunction should take the grid data as a parameter and return a uint for the background color to draw. Somewhat like this:

 public function rowColorFunction(data:*):uint

 {

  if (!data) return 0xffffff; // no data, leave blank, or maybe some other default value

  ........  

  return ....;

 }

Using LiveCycle Assembler to Create a PDF Portfolio via Webservices

Introduction

This post is about using Adobe LiveCycle ES2.5 Assembler services to create dynamic PDF Portfolios via Webservices (SOAP).

My actual  implementation is done in 4th Dimension but the technique works from any language/environment that provides access to external SOAP services. In fact, the only reference to 4D is the one above, no 4D code will be shown/covered here.

Additional documentation on LCES2.5 services can be found here:

• Invoking LiveCycle ES Using Webservices
• Assembling PDF Portfolios
• Assembler Service and DDX Reference