Bug 147604 Value in parameter list displays incorrectly with paramter group
Steps to reproduce: 1.Add a parameter group "pg" in report1, add a parameter"p" in the group 2.Add a label in report2, set a drill-through hyperlink, set target report is "report1", click parameter Expected result: Only one "p" lists in the value list Actual result: Two "p" appear
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HyperlinkBuilder.java
{
					deleteRow( );
				}
			}
		} );
		paramBindingTable.setColumnProperties( new String[]{
				COLUMN_PARAMETER, COLUMN_REQUIRED, COLUMN_VALUE
		} );
		parameterChooser = new ComboBoxCellEditor( table,
				new String[0],
				SWT.READ_ONLY );
		ExpressionCellEditor valueEditor = new ExpressionCellEditor( table );
		valueEditor.setExpressionProvider( new ExpressionProvider( inputHandle.getElementHandle( ) ) );
		paramBindingTable.setCellEditors( new CellEditor[]{
				parameterChooser, null, valueEditor
		} );
		paramBindingTable.setContentProvider( contentProvider );
		paramBindingTable.setLabelProvider( labelProvider );
		paramBindingTable.setCellModifier( cellModifier );
		paramBindingTable.setInput( bindingList );
	}
	private void clearArea( )
	{
		Control[] controls = displayArea.getChildren( );
		for ( int i = 0; i < controls.length; i++ )
		{
			controls[i].dispose( );
		}
	}
	private void createExpressionButton( Composite parent, final Text text )