Question

JqueryUI:
The code below fires an alert every time the box is closed, but how can I make it so it only does this for once and not every time.

$("#box").dialog({
    close: function () {
            alert(999);
    }
});

This was how I did it before using jQueryUi:

$("#box").one("click", function () {
    alert(999);
    return false
});

Answer 1

According to the docs, the .close() method also has a corresponding event: dialogclose. So you should be able to do this:

$("#box").one("dialogclose",function() {
    alert(999);
});