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
}
	/**
	 * Validates drop target from scalar parameter in data view.
	 * 
	 * @return validate result
	 */
	protected static boolean handleValidateParameter( EditPart target )
	{
		return handleValidateParameterDropContainer( target )
				&& DNDUtil.handleValidateTargetCanContainType( target.getModel( ),
						ReportDesignConstants.DATA_ITEM );
	}
	/**
	 * Validates drag source from data view to layout. Support the multiple.
	 * 
	 * @return validate result
	 */
	public static boolean handleValidateInsert( Object insertObj )
	{
		if ( insertObj instanceof Object[] )
		{
			Object[] array = (Object[]) insertObj;
			if ( array.length == 0 )
			{
				return false;
			}
			for ( int i = 0; i < array.length; i++ )
			{
				if ( !handleValidateInsert( array[i] ) )
					return false;