Is there a way to invoke web service functions using JavaScript?

How can I access web services from JavaScript? I understand that adding a script manager is one way to pull in the web services, but I'm struggling to figure out how to use the functions in JavaScript once they're added.

Thank you,
Matt

Answer №1

For detailed instructions on how to call Web Services from client script using ASP.NET AJAX, please refer to this guide:

This comprehensive guide walks you through the process of calling a Web service from ECMAScript (JavaScript). By leveraging the server asynchronous communication layer, JavaScript proxy classes are automatically generated to facilitate application access to ASP.NET AJAX Web services using client script. Each Web service included under the `<asp:ServiceReference>` element within the `<asp:ScriptManager>` control on the page is assigned its own proxy class.

Answer №2

Check out this helpful tutorial on Using jQuery to Consume ASP.NET JSON Web Services by Dave Ward.

$(document).ready(function() {
  $.ajax({
    type: "POST",
    url: "RSSReader.asmx/GetRSSReader",
    data: "{}",
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    success: function(msg) {
      // Removing the fake loading indicator graphic.
      $('#RSSContent').removeClass('loading');

      // Adding the received HTML content into the <div>.
      $('#RSSContent').html(msg.d);
    }
  });
});

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