problem with calling remote ASMX using jQuery

Question

Been trying my best to understand this correctly. What is the difference between an XML, SOAP and JSON response? And how does one know how to call a web service whose response i

Answer 1

in page load function add the next lines for a client ....

        base.Response.AddHeader("Access-Control-Allow-Origin", "*");
        base.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST, OPTIONS");
        base.Response.AddHeader("Access-Control-Allow-Headers", "X-Requested-With");
        base.Response.AddHeader("Access-Control-Max-Age", "86400");