Bug 180864 Change Allow Null option in Cascading Group.[0705]
Description: Change Allow Null option in Cascading Group. Build number:2.2.0.v20070404 Steps to reproduce: 1. New a cascading group and add sub parameter. Expected result: Is Required option in cascading group definition dialog. Actual result: Allow null value option in Cascading Group definition dialog Error log:N/A
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
updateButtons( );
					}
				}
			}
		} );
	}
	private void createPropertiesPart( Composite parent )
	{
		propertiesGroup = new Group( parent, SWT.NULL );
		propertiesGroup.setText( LABEL_GROUP_PROPERTIES );
		propertiesGroup.setLayout( new GridLayout( 2, false ) );
		propertiesGroup.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		createLabel( propertiesGroup, LABEL_PARAM_NAME, maxStrLengthProperty );
		paramNameEditor = new Text( propertiesGroup, SWT.BORDER | SWT.READ_ONLY );
		paramNameEditor.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		paramNameEditor.addModifyListener( new ModifyListener( ) {
			public void modifyText( ModifyEvent e )
			{
				valueTable.refresh( selectedParameter );
			}
		} );
		createLabel( propertiesGroup,
				LABEL_PARAMTER_PROMPT_TEXT,
				maxStrLengthProperty );
		promptText = new Text( propertiesGroup, SWT.BORDER );
		promptText.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		createLabel( propertiesGroup, LABEL_DATA_TYPE, maxStrLengthProperty );
		dataTypeChooser = new Combo( propertiesGroup, SWT.DROP_DOWN
				| SWT.READ_ONLY );
		dataTypeChooser.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );