Bug 136045 the display name does not work
Description: the display name does not work Steps to reproduce: 1. new a datasource and a dataset 2. In the window 'Edit dataset'. click the tab 'Output columns' 3. set a display name on a column Actual result: The display name does not work, however, it is still the column name
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dnd/InsertInLayoutUtil.java
}
		if ( handle instanceof GroupHandle )
		{
			return (GroupHandle) handle;
		}
		return null;
	}
	/**
	 * Inserts invalid column string into the target. Add label if possible
	 * 
	 * @param expression
	 *            invalid column or other expression
	 * @param target
	 *            insert target like cell or ListBandProxy
	 * @return to be inserted data item
	 * @throws SemanticException
	 */
	protected static DesignElementHandle performInsertString(
			String expression, Object target ) throws SemanticException
	{
		
		
		
		
		DataItemHandle dataHandle = DesignElementFactory.getInstance( )
				.newDataItem( null );
		dataHandle.setValueExpr( expression );
		InsertInLayoutRule rule = new LabelAddRule( target );
		if ( rule.canInsert( ) )
		{