How to get column header name in Pivot Table

asked 2011-06-21 07:38:00 +0800

abb222222
30

I have the following function to get the column header name when mouse over the pivot table.

public void onPivotTooltip(PivotUIEvent event) {
if (event.getFieldType() == PivotField.AREA_ROW) {
rawDataLayout.appendChild(new Label(event.getRowContext().getNode().getField().getTitle()));
popup.open(pivot, "overlap");
} else {
popup.close();
}
}

This works well for a few number of rows. If the number of rows increases, "event.getRowContext().getNode()" obtains null in some rows.