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
{
		super( parent, style );
		this.builder = builder;
		GridLayout layout = new GridLayout( 4, false );
		layout.marginTop = 0;
		this.setLayout( layout );
		createContent( );
	}
	public void dispose( )
	{
		if ( visitor != null )
		{
			if ( input != null )
				visitor.removeListener( input );
			visitor.dispose( );
			visitor = null;
		}
		super.dispose( );
	}
	private TabularCubeHandle input;
	private TreeViewer groupViewer;
	public void setInput( TabularCubeHandle cube )
	{
		if ( input != null )
			getListenerElementVisitor( ).removeListener( input );
		this.input = cube;
	}
	private DataSetHandle[] datasets = new DataSetHandle[1];
	public void setInput( TabularCubeHandle cube, DataSetHandle dataset )
	{