Bug 190727 [regression]Default value issue when switch report parameter from textbox to listbox.[0705]
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.ISharedImages;
import com.ibm.icu.util.ULocale;
/**
 * The dialog used to create or edit a parameter
 */
public class ParameterDialog extends BaseDialog
{
	private static final String CHOICE_NO_DEFAULT = Messages.getString( "ParameterDialog.Choice.NoDefault" ); 
	private static final String CHOICE_NULL_VALUE = Messages.getString( "ParameterDialog.Choice.NullValue" );
	private static final String CHOICE_NONE = Messages.getString( "ParameterDialog.Choice.None" );
	private static final String CHOICE_DISPLAY_TEXT = Messages.getString( "ParameterDialog.Choice.DisplayText" );
	private static final String CHOICE_VALUE_COLUMN = Messages.getString( "ParameterDialog.Choice.ValueColumn" );
	private static final String CHOICE_ASCENDING = Messages.getString( "ParameterDialog.Choice.ASCENDING" );
	private static final String CHOICE_DESCENDING = Messages.getString( "ParameterDialog.Choice.DESCENDING" );
	private static final String CHOICE_SELECT_VALUE = Messages.getString( "ParameterDialog.Choice.SelectValue" );
	private static final String CHOICE_BLANK_VALUE = Messages.getString( "ParameterDialog.Choice.BlankValue" );
	private static final String GROUP_MORE_OPTION = Messages.getString( "ParameterDialog.Group.MoreOption" ); 
	private static final String LABEL_NAME = Messages.getString( "ParameterDialog.Label.Name" ); 
	
	
	private static final String LABEL_DATETIME_PROMPT = Messages.getFormattedString( "ParameterDialog.datetime.prompt", new String[]{"MM/DD/YYYY hh:mm:ss AM/PM"} );