Bug 192347 [acceptance]Theme cannot be deleted[01]
Description: [acceptance]Theme cannot be deleted Build number:2.2.0.v20070613 Steps to reproduce: 1. New a library. 2. New a theme and delete it. Expected result: Theme can be deleted Actual result: Delete key doesn't work and no delete item in context menu. Error log:n/a
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DNDUtil.java
* @param isNew
	 *            true: insert and paste; false: override and paste
	 * @return paste succeed or fail
	 */
	protected static boolean copyColumn( ColumnBandData transferData,
			Object targetObj, boolean isNew )
	{
		try
		{
			int columnNumber = HandleAdapterFactory.getInstance( )
					.getColumnHandleAdapter( targetObj )
					.getColumnNumber( );
			Object parent = ( (ColumnHandle) targetObj ).getContainer( );
			if ( parent instanceof TableHandle )
			{
				if ( isNew )
				{
					( (TableHandle) parent ).insertAndPasteColumn( transferData.copy( ),
							columnNumber );
				}
				else
				{
					( (TableHandle) parent ).pasteColumn( transferData.copy( ),
							columnNumber,
							true );
				}
			}
			else if ( parent instanceof GridHandle )
			{
				if ( isNew )