             const shiftKey:Boolean = mouseEvent.shiftKey;
             const buttonDown:Boolean = mouseEvent.buttonDown;
             const delta:int = mouseEvent.delta;        
-            
+
             const event:GridEvent = new GridEvent(
                 type, bubbles, cancelable, 
                 gridXY.x, gridXY.y, rowIndex, columnIndex, column, item, itemRenderer, 
                 relatedObject, ctrlKey, altKey, shiftKey, buttonDown, delta);
             dispatchEvent(event);
         }
-                
+            
         //--------------------------------------------------------------------------
         //
         //  IList listeners: columns, dataProvider

            }
        }
        
        /**
         *  This method is called whenever a CLICK MouseEvent occurs on the grid if both
         *  the corresponding down and up events occur within the same grid cell.

            var gridEventType:String;
            switch(event.type)
            {
                case MouseEvent.MOUSE_MOVE: 
                    gridEventType = GridEvent.GRID_MOUSE_DRAG; 
                    break;
                case MouseEvent.MOUSE_UP: 
                    gridEventType = GridEvent.GRID_MOUSE_UP;
                    break;
                case MouseEvent.MOUSE_DOWN: 
                    gridEventType = GridEvent.GRID_MOUSE_DOWN;
                    mouseDownRowIndex = eventRowIndex;
                    mouseDownColumnIndex = eventColumnIndex;
                    dragInProgress = true;
                    break;
            }
            
