Bug 177439 Need an easy way to determine default value for a dynamic parameter
Currently, I have to bring up the data set editor, preview the results in the data set and make a mental note of the value to use for a report parameter that depends on a data set. It would be nice to have a drop down on the default value field, such as <Select value> which when selected queries the data set and presents me with a list to select from.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
private static final String LABEL_DEFAULT_VALUE = Messages.getString( "CascadingParametersDialog.Label.defaultValue" ); 
	private static final String LABEL_GROUP_MORE_OPTIONS = Messages.getString( "CascadingParametersDialog.Label.group.moreOptions" ); 
	private static final String LABEL_HELP_TEXT = Messages.getString( "CascadingParametersDialog.Label.helpText" ); 
	private static final String LABEL_FORMAT_AS = Messages.getString( "CascadingParametersDialog.Label.formatAs" ); 
	private static final String LABEL_CHANGE_FORMAT_BUTTON = Messages.getString( "CascadingParametersDialog.Label.button.changeFormat" ); 
	private static final String LABEL_PREVIEW_WITH_FORMAT = Messages.getString( "CascadingParametersDialog.Label.preview" ); 
	private static final String LABEL_CREATE_NEW_PARAMETER = Messages.getString( "CascadingParametersDialog.Label.createNewParam" ); 
	private static final String LABEL_SELECT_DATA_SET = Messages.getString( "CascadingParametersDialog.Label.selectDataSet" ); 
	private static final String LABEL_SELECT_DISPLAY_COLUMN = Messages.getString( "CascadingParametersDialog.Label.selectDisplayColumn" ); 
	private static final String LABEL_SELECT_VALUE_COLUMN = Messages.getString( "CascadingParametersDialog.Label.selectValueColumn" ); 
	private static final String LABEL_NO_COLUMN_AVAILABLE = Messages.getString( "CascadingParametersDialog.Label.NoColumnAvailable" ); 
	private static final String BUTTON_IS_REQUIRED = Messages.getString( "CascadingParametersDialog.Button.isRequired" ); 
	private static final String LABEL_SELECT_DATA_SET_MODE = Messages.getString( "CascadingParametersDialog.Label.SelectDataSetMode" ); 
	private static final String RADIO_SINGLE = Messages.getString( "CascadingParametersDialog.Radio.Single" ); 
	private static final String RADIO_MULTIPLE = Messages.getString( "CascadingParametersDialog.Radio.Mutli" ); 
	private static final String COLUMN_NAME = Messages.getString( "CascadingParametersDialog.Label.column.name" ); 
	private static final String COLUMN_DATA_SET = Messages.getString( "CascadingParametersDialog.Label.column.dataSet" ); 
	private static final String COLUMN_VALUE = Messages.getString( "CascadingParametersDialog.Label.column.value" ); 
	private static final String COLUMN_DISPLAY_TEXT = Messages.getString( "CascadingParametersDialog.Label.column.displayText" ); 
	private static final String PARAM_CONTROL_LIST = DesignChoiceConstants.PARAM_CONTROL_LIST_BOX
			+ "/List"; 
	private static final String PARAM_CONTROL_COMBO = DesignChoiceConstants.PARAM_CONTROL_LIST_BOX
			+ "/Combo"; 
	private static final String DISPLAY_NAME_CONTROL_LIST = Messages.getString( "CascadingParametersDialog.display.controlType.listBox" ); 
	private static final String DISPLAY_NAME_CONTROL_COMBO = Messages.getString( "CascadingParametersDialog.display.controlType.comboBox" ); 
	private static final double DEFAULT_PREVIEW_NUMBER = Double.parseDouble( "1234.56" ); 
	private static final int DEFAULT_PREVIEW_INTEGER_NUMBER = 123456;
	private static final String DEFAULT_PREVIEW_STRING = Messages.getString( "CascadingParametersDialog.default.preview.string" ); 
	private static final String ERROR_TITLE_INVALID_LIST_LIMIT = Messages.getString( "ParameterDialog.ErrorTitle.InvalidListLimit" ); 
	private static final String ERROR_MSG_INVALID_LIST_LIMIT = Messages.getString( "ParameterDialog.ErrorMessage.InvalidListLimit" );