Question

I need to format the column with a currency formatter. I know how to do currency formatting I just need an example on how to implement it into the datagrid column.

Answer 1

No need to use an itemRenderer. Just use a labelFunction. Example:

The DataGridColumn:

<mx:DataGridColumn headerText="Total Cost" dataField="TotalCost" labelFunction="LabelFormatter"/>

LabelFormatter label function:

protected function LabelFormatter(item:Object, column:DataGridColumn):String
{
  var returnLabel:String = "";
  var header:String = column.headerText;

  switch (header)
  {                 
    case "Total Cost":
      returnLabel = currencyFormat.format(item.TotalCost.toString());
      break;
  }

  return returnLabel;
}

The Currency Formatter:

<mx:CurrencyFormatter id="currencyFormat" precision="2" />