How to update data of a VueJS instance from a jQuery AJAX call?

You have a scope issue of this.name in your AJAX success handler.

The this.name inside is not the same as this.name in your Vue component. So your name is not getting set in the Vue component.

You may use arrow functions to get around this issue:

$.ajax({
    url: 'http://elk.example.com:9200/users/user/' + this.id
    }).done(data => {
        this.name = data._source;  // 'this' points to outside scope
        this.name.valueset = true;
    });

Similar answer: https://stackoverflow.com/a/40200989/654825

More info on Arrow functions: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Functions/Arrow_functions

not same scope for this.name

create_casenr: function(event) {
// update the full name of user
$.ajax({
    url: 'http://elk.example.com:9200/users/user/' + this.id
})
.done(function(data) {
    console.log(data);
    this.name = data._source;
    this.name.valueset = true;
    console.log(this.name);
}.bind(this))

add a bind(this)