Answers for "how to see the value of custom attribute in html element jquery"

jquery get custom attribute

var userType = $("input[name=ctrl_CustomerType]:checked").attr('xmlvalue');

custom attribute jquery selector

$("ul[data-group='Companies'] li[data-company='Microsoft']") //Get all elements with data-company="Microsoft" below "Companies"

$("ul[data-group='Companies'] li:not([data-company='Microsoft'])") //get all elements with data-company!="Microsoft" below "Companies"