Bug 153391 Some Options in Edit Parameter dialog haven't been saved.
Description: Some Options in Edit Parameter dialog haven't been saved. Steps to reproduce: 1. new a parameter, boolean type, tick AllowNUll and sort alphabetically... 2. Close the dialog and reopen it. 3. new a parameter, string, combo-box, tick AllowNull. 4. Close the dialog and reopen it. Expected result: Ticked options' status are saved Actual result: After reopen parameter dialog, options are unticked.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
createLabel( composite, null );
		createLabel( composite, LABEL_SELECT_DISPLAY_TEXT );
		displayTextChooser = new Combo( composite, SWT.BORDER | SWT.READ_ONLY );
		displayTextChooser.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		createLabel( composite, null );
		createDefaultEditor( );
		listLimit.setEditable( true );
	}
	private void createDefaultEditor( )
	{
		createLabel( valueArea, LABEL_DEFAULT_VALUE );
		defaultValueEditor = new Text( valueArea, SWT.BORDER );
		defaultValueEditor.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		defaultValueEditor.addModifyListener( new ModifyListener( ) {
			public void modifyText( ModifyEvent e )
			{
				defaultValue = UIUtil.convertToModelString( defaultValueEditor.getText( ),
						false );
				if ( isStatic( ) )
				{
					refreshValueTable( );
				}
				updateFormatField( );
				updateMessageLine( );
			}
		} );
	}
	private void createPromptLine( Composite parent )
	{
		promptMessageLine = new Label( parent, SWT.NONE );