dataGrid multiple selectedItems problem

programming flash
1 
 
import fl.controls.*;
import fl.controls.dataGridClasses.DataGridColumn;
import fl.data.DataProvider;
 
var dp:DataProvider = new DataProvider();
dp.addItem({col1:"item 1.A", col2:"item 1.B", col3:"item 1.C"});
dp.addItem({col1:"item 2.A", col2:"item 2.B", col3:"item 2.C"});
dp.addItem({col1:"item 3.A", col2:"item 3.B", col3:"item 3.C"});
dp.addItem({col1:"item 4.A", col2:"item 4.B", col3:"item 4.C"});
 
var myDataGrid:DataGrid = new DataGrid();
myDataGrid.addColumn("col1");
myDataGrid.addColumn("col2");
myDataGrid.addColumn("col3");
myDataGrid.dataProvider = dp;
myDataGrid.setSize(300, 110);
myDataGrid.move(10, 10);
myDataGrid.allowMultipleSelection = true;
addChild(myDataGrid);
 
var resultButton = new Button();
resultButton.move(10, 130);
addChild(resultButton);
resultButton.label = "Result";
resultButton.addEventListener(MouseEvent.CLICK, getResult);
 
function getResult(e:Event){
 //here i need multiple selected item data
 trace("result: " + myDataGrid.selectedItem.col2);
}

[COLOR=red]here iam trying to trace multiple seleted items data, i tried myDataGrid.selectedItems.col2, but its not working… How can i do this ?..[/COLOR]
[COLOR=red]Could u please help me…[/COLOR]

thanks in advance,
shabeer…