N/ui/serverWidget Module
Sublist.addRefreshButton()
Method Description: Adds a Refresh button to a LIST type of sublist.
Returns: serverWidget.Button object
Supported Script Types: SuiteScript 2.0 Suitelet Script Type and SuiteScript 2.0 User Event Script Type (beforeLoad(scriptContext))
Governance: None
Module: N/ui/serverWidget Module
Since: 2015.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=Sublist.addRefreshButton()

// Code Example 1

//Add additional code

//...

var form = serverWidget.createForm({

    title : 'Simple Form'

});

var sublist = form.addSublist({

    id : 'sublist',

    type : serverWidget.SublistType.LIST,

    label : 'List Sublist'

});

sublist.addRefreshButton();

//...

//Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_458060852050.html