jquery ui Dialog: cannot call methods on dialog prior to initialization

Question

I have an app on jquery 1.5 with dialogs worked fine. While I have a lot of .live handlers, I changed this to .on. For that, I have to update jquery (now 1.8.3 an jquerui 1.

Answer 1

The new jQuery UI version will not allow you to call UI methods on dialog which is not initialized. As a workaround, you can use the below check to see if the dialog is alive.

if (modalDialogObj.hasClass('ui-dialog-content')) {
    // call UI methods like modalDialogObj.dialog('isOpen')
} else {
    // it is not initialized yet
}