Adding Total Row at the end of DataGrid

Algo:
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1. Create two datagrids and put both in a VBox. Set the 'verticalGap' of the VBox to zero.
2. First datagrid contains all the rows while the second one contains only the total row.
3. Second datagrid has
a) showHeaders = false
b) rowCount = 1
4. Dataprovider of the First datagrid is the arraycollection containing the Objects/data representing various rows
5. Dataprovider of the Second datagrid is the arraycollection containing ONLY one item which contains the total dataobject.

e.g.
The code would be something like :


Click here for demo
Click here for the source code

Approach 2
Another approach has been mentioned at:
http://blogs.adobe.com/aharui/2007/04/datagrid_footers.html

But the above implementation doesn't take care of resizing columns. In order to add that support:
1. add following function to FooterDataGrid
public function recreateBorder() : void
{
removeChild(DisplayObject(border));
border = null;
createBorder();
}

2. call this function on the "columnStretch" event i.e.

columnStretch="{dg1.recreateBorder()}" >

Click here to see the demo.