HTML5 for ASP.NET Developers: Listing 2.

Using the postMessage method for data retrieval.

window.addEventListener(
  "message",
  retrieveData, 
  false
);

function retrieveData (msg) 
{
  if (msg.origin == "http://localsite.com") 
  {
    var custData;
    $.getJSON(
      "Customers/" + msg.data,
      function (data) 
      {
        msg.source.postMessage(data, msg.origin);
      }
    );
  }
}

About the Author

Peter Vogel is a system architect and principal in PH&V Information Services. PH&V provides full-stack consulting from UX design through object modeling to database design. Peter tweets about his VSM columns with the hashtag #vogelarticles. His blog posts on user experience design can be found at http://blog.learningtree.com/tag/ui/.

comments powered by Disqus

Featured

  • Death of the Dev Machine?

    Here's a takeaway from this week's Ignite 2020 event: An advanced Azure cloud portends the death of the traditional, high-powered dev machine packed with computing, memory and storage components.

  • COVID-19 Is Ignite 2020's Elephant in the Room: 'Frankly, It Sucks'

    As in all things of our new reality, there was no escaping the drastic changes in routine caused by the COVID-19 pandemic during Microsoft's big Ignite 2020 developer/IT pro conference, this week shifted to an online-only event after drawing tens of thousands of in-person attendees in years past.

  • Visual Studio 2019 v16.8 Preview Update Adds Codespaces

    To coincide with the Microsoft Ignite 2020 IT pro/developer event, the Visual Studio dev team shipped a new update, Visual Studio 2019 v16.8 Preview 3.1, with the main attraction being support for cloud-hosted Codespaces, now in a limited beta.

  • Speed Lines Graphic

    New for Blazor: Azure Static Web Apps Support

    With Blazor taking the .NET web development world by storm, one of the first announcements during Microsoft's Ignite 2020 developer/IT event was its new support in Azure Static Web Apps.

  • Entity Framework Core 5 RC1 Is Feature Complete, Ready for Production

    The first release candidate for Entity Framework 5 -- Microsoft's object-database mapper for .NET -- has shipped with a go live license, ready for production.

Upcoming Events