Bug 193828 message should not be popped when adding group level to cross tab
In a cross tab click on an aggregation type data cell and select 'show/hide Group Levels'. If I want to add a level, A message dialog pops up. Expected: No message dialog should pop up when adding a level. The dialog should appear only when a level in unchecked.
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/editors/model/CrosstabAdaptUtil.java
public static ExtendedItemHandle getExtendedItemHandle( DesignElementHandle handle )
	{
		while ( handle != null )
		{
			if ( handle instanceof ExtendedItemHandle )
			{
				return (ExtendedItemHandle) handle;
			}
			handle = handle.getContainer( );
		}
		return null;
	}
	
	/**
	 * @param extendedHandle
	 * @return
	 */
	public static LevelViewHandle getLevelViewHandle(
			ExtendedItemHandle extendedHandle )
	{
		AbstractCrosstabItemHandle handle = (AbstractCrosstabItemHandle) CrosstabUtil.getReportItem( extendedHandle );
		while ( handle != null )
		{
			if ( handle instanceof LevelViewHandle )
			{
				return (LevelViewHandle) handle;
			}
			handle = handle.getContainer( );
		}