IDataContext Interface

Current information about Live Connect is now available in the Windows Live Developer Center. The information in the following sections is provided for legacy purposes only.

Declares the IDataContext interface.

Feature:  Microsoft.Live
Namespace:  Microsoft.Live

The JavaScript Library for Windows Live Messenger Connect is built by using the Microsoft Ajax Library. Microsoft Ajax exposes a type system that enables you to add object-oriented capabilities to your JavaScript code. To learn more about creating and implementing interfaces, see Creating Custom Client Script by Using the Microsoft Ajax Library.

Microsoft.Live.IDataContext = function();

The IDataContext interface provides support for accessing Windows Live user data. The IDataContext type is the return type for the dataContext property of the App class.

The examples in this section demonstrate how to get an instance of DataContext from the dataContext property of the App class, and how to load contacts. After the application has loaded, a sign-in function is called. When sign in is complete, a data context is available.

var sb = "", outputElem, dataContext;
function appLoaded(applicationLoadCompletedEventArgs) {
    outputElem = $get("Output");

function signInComplete(signInCompletedEventArgs) {
    if (signInCompletedEventArgs.get_resultCode() !== Microsoft.Live.AsyncResultCode.success) {
        alert("Sign in failed.");
    else {
        dataContext = Microsoft.Live.App.get_dataContext();
        dataContext.loadAll(Microsoft.Live.DataType.contacts, contactsLoaded);
function contactsLoaded(dataLoadCompletedEventArgs) {
    if (dataLoadCompletedEventArgs.get_resultCode() !== Microsoft.Live.AsyncResultCode.success) {
        alert("Contacts failed to load.");
    contactsCollection = dataLoadCompletedEventArgs.get_data();
    var contact;
    for (var i = 0; i < contactsCollection.get_length(); i++) {
        contact = contactsCollection.get_item(i);
        sb += contact.get_firstName() + ", " + contact.get_lastName() + "<br/>";
    outputElem.innerHTML += sb;

Windows Live Messenger Connect

Supported in: 4.1

Internet Explorer 8.0, Internet Explorer 7.0, Internet Explorer 6.0, Firefox 3.6, Firefox 3.5, Firefox 3.0, Firefox 2.0, Firefox 1.5, Chrome 4.0, Chrome 3.0, Chrome 2.0, Chrome 1.0, Safari 4.0, Safari 3.0