Get created item's ID created using NewForm.aspx in modal dialog

Question

I am creating a new item using NewForm.aspx opened using SP showModalDialog. How can I get the ID of created item after form is saved?

I need to get the ID to do some processing.

Answer 1

I solved this using SPServices

var lastID = $().SPServices.SPGetLastItemId({
    listName:'List 1'
});

this will get last inserted item's id which was created by same user.

List 1 is list's name

Answer 2

You can try running a SP2013 REST api and

get top 1 item while they are sorted by Created date in descending order

once your model dialog saves data in the list. Please refer this:

 _api/web/Lists/GetByTitle('your_List_title')/items?$top=1&$select=ID&$orderby=Created desc