Iterate single Column in a Datagrid

Question

How to iterate single column of datagrid using flex3.
i want to iterate only one column.for eg  say column-5.
and sum of all the data in col-5.

Answer 1

Here is an example for enumerating the datagrid.  You can easily change it to do selected items instead.  You could also access the dataprovider source directly vs going through datagrid.
//Summary function
protected function UpdateTotal():void
   var fRunningTotal:Number = 0.0;
   var nNodeCount:int = 0;
   //Check if the dataprovider is empty.
   if (dgMyDatagrid.dataProviderLength == 0)
      //Nothing to total, return out.
      return;
   //Loop through all the nodes
   for (nCount = 0; nCount < dgMyDatagrid.dataProviderLength; nCount++)
       //At the current row in the dataprovider convert the 5th object (0 index = start).
       //Add to the running total.
       //If the dataprovider is an XMLListCollection you could address it by name.
       fRunningTotal += Number(dgMyDatagrid.dataProvider.getItemAt(nCount)[4])
   //Do something with the total here... like store it for displaying in a label.