Bug 190957 The cancel button in group level dialog in cube take no effect[1101]
Description: The cancel button in group level dialog in cube take no effect[1101] Build number: 2.2.0.v20070605-0630 Steps to reproduce: 1, New a cube 2, New a level 3, Do some operations on the level 4, Click cancel button Expected result: The cancel button can take effect to cancel all the operations Actual result: The cancel button take no effect and all the operations have done
UI/org.eclipse.birt.report.designer.ui.cubebuilder/src/org/eclipse/birt/report/designer/ui/cubebuilder/page/CubeGroupContent.java
{
	private TreeItem[] dragSourceItems = new TreeItem[1];
	class CustomDragListener implements DragSourceListener
	{
		private TreeViewer viewer;
		CustomDragListener( TreeViewer viewer )
		{
			this.viewer = viewer;
		}
		public void dragFinished( DragSourceEvent event )
		{
		};
		public void dragSetData( DragSourceEvent event )
		{
			event.data = dragSourceItems[0].getText( );
		}
		public void dragStart( DragSourceEvent event )
		{
			TreeItem[] selection = viewer.getTree( ).getSelection( );
			if ( selection.length > 0 )
			{