Bug 120216 Group dialog should be showed even dataset is not set.
- Add a table report item - do not set the data set - try creating a new table group. - An error is shown Expected behavior - As part of the template requirements, we dont want UI to do the validation. User should be able to go and define a group, even if the dataset is not defined.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/util/UIUtil.java
else if ( parent instanceof ListHandle )
		{
			groupHandle = factory.newListGroup( );
			slotHandle = ( (ListHandle) parent ).getGroups( );
		}
		if ( groupHandle != null && slotHandle != null )
		{
			slotHandle.add( groupHandle, position );
			if ( !DEUtil.getDataSetList( parent ).isEmpty( ) )
			{
				GroupDialog dialog = new GroupDialog( getDefaultShell( ),
						GroupDialog.GROUP_DLG_TITLE_NEW );
				dialog.setDataSetList( DEUtil.getDataSetList( parent ) );
				dialog.setInput( groupHandle );
				if ( dialog.open( ) == Window.CANCEL )
				{
					return false;
				}
			}
			return true;
		}
		return false;
	}
	/**
	 * Gets the first selected edit part in layout editor. Whenever the user has
	 * deselected all edit parts, the contents edit part should be returned.
	 * 
	 * @return the first selected EditPart or root edit part
	 */
	public static EditPart getCurrentEditPart( )