Bug 191685 [regression]Set default value doesn't work in Report Parameter[0705]
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
defaultValueChooser.addModifyListener( new ModifyListener( ) {
			public void modifyText( ModifyEvent e )
			{
				String value = defaultValueChooser.getText( );
				if ( value.equals( CHOICE_NULL_VALUE )
						|| value.equals( CHOICE_BLANK_VALUE ) )
					return;
				changeDefaultValue( UIUtil.convertToModelString( value, false ) );
				if ( isStatic( ) )
				{
					refreshValueTable( );
				}
			}
		} );
	}
	private void createPromptLine( Composite parent )
	{
		promptMessageLine = new Label( parent, SWT.NONE );
		promptMessageLine.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
	}
	protected void okPressed( )
	{
		try
		{
			
			inputParameter.setName( nameEditor.getText( ) );
			inputParameter.setPromptText( UIUtil.convertToModelString( promptTextEditor.getText( ),
					true ) );
			String newControlType = getSelectedControlType( );
			if ( PARAM_CONTROL_COMBO.equals( newControlType ) )