Bug 134988 [regression]Available items in Query didn't change when change data source in Edit Data Set Dialog.
Description: Available items in Query didn't change when change data source in Edit Data Set Dialog. Steps to reproduce: 1. New two different data sources. 2. New a dataset, change data source, view Available Items in Query pane. Expected result: Available Items in Query pane changed according to new Data source. Actual result: Available Items in Query pane kept unchanged.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
}
						}
						Utility.createTreeItems( item,
								columnList,
								SWT.NONE,
								columnImage );
					}
				}
			}
		});
	}
	
	/**
	 * Adds drag support to tree..Must set tree before execution.
	 */
	public void addDragSupportToTree( )
	{
		DragSource dragSource = new DragSource( availableDbObjectsTree, DND.DROP_COPY );
		dragSource.setTransfer( new Transfer[]{TextTransfer.getInstance( )} );
		dragSource.addDragListener( new DragSourceAdapter( ) {
			public void dragStart( DragSourceEvent event )
			{
				TreeItem[] selection = availableDbObjectsTree.getSelection( );
				if ( selection.length > 0 )
				{
					if ( selection[0].getData( ) instanceof DbObject )
					{
						if ( ( (DbObject) selection[0].getData( ) ).getType( ) == DbObject.PROCEDURE_TYPE )
						{
							event.doit = false;