[flexcoders] Screen Refresh function??

[Dan Pride]

I have a screen with datagrid lists which list the basics.
Users double click list items to display and enter further data.
The screen does not display the values on the first change of the selected 
child canvas. After the first attempt it always does, but the "first 
impression" bites. Is there a way to get this to display first and every time???

Basic function I am using on the doubleclick on the datagrid is:

private function displayLoca():void{
        applicationScreens.selectedChild = locaScreen;
        locaName.text = locaGrid.selectedItem.NameCol;
        locaField.text = locaGrid.selectedItem.FieldCol;
        locaSquare.text = locaGrid.selectedItem.SquareCol;
}

Thanks
Dan Pride