Bug 131628 Dynamic pick list enhancements - BIRT designer UI changes
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
private Text formatField;
	private Text listLimit;
	private Text promptText;
	private Combo dataSetsCombo;
	private Combo dataTypeChooser;
	private Combo displayTypeChooser;
	private Button createDSButton;
	private Button changeFormat;
	private Label previewLable;
	private Table table;
	private TableViewer valueTable;
	private CellEditor[] cellEditors;
	private static IChoiceSet dataType = DesignEngine.getMetaDataDictionary( )
			.getChoiceSet( DesignChoiceConstants.CHOICE_PARAM_TYPE );
	private CascadingParameterGroupHandle inputParameterGroup;
	private DataSetHandle dataSet;
	private ScalarParameterHandle selectedParameter;
	
	protected ScalarParameterHandle newParameter = null;
	private String defaultValue;
	private String formatPattern;
	private String formatCategroy;
	private boolean loading = true;
	private Button allowNull;
	/**
	 * 
	 * Constructor.
	 * 
	 * @param parentShell
	 * @param title