Is there a way to get current item Id in Edit form

Question

I open a list item for editing and want to execute some JavaScript for this but I can't retrieve the item Id in the Edit form.

I use following code:

var context = SP.ClientContext.get_current();
var items = SP.ListOperation.Selection.getSelectedItems(context);

But the items collection is empty. On "View all" List form this code works well. The problem exists only in the EditForm. Can anyone help me?

Answer 1

The Item ID is passed via url to the Edit Form. so you cab get it using this : _spGetQueryParam('id') Let me know if this works.

Answer 2

The JSRequest class is a JavaScript object that lives on all SharePoint Pages, and allows us to simply and quickly get query string values using JavaScript.

//First we must call the EnsureSetup method
JSRequest.EnsureSetup(); 

//Get a query string parameter called Id. i.e - "page.aspx?Id=11" will return 11
var itemId = JSRequest.QueryString["ID"];

Answer 3

This is my answer with jQuery.

 $(document).ready(function() {
   var vars = [], hash;  
   var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
   for(var i = 0; i < hashes.length; i++){     
     hash = hashes[i].split('=');
     vars.push(hash[0]);
     vars[hash[0]] = hash[1];
  }   


   var Id = vars["ID"].toString();

   alert(Id);

Best Regards.

Answer 4

var pairs = window.location.search.substring(1).split('&');
var pair = pairs[0].split('=');
var ID = pair[1];

Answer 5

var itemID = getParameterByName('ID');    

var getParameterByName = function(parameter) {
    parameter = parameter.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
    var regex = new RegExp("[\\?&]" + parameter + "=([^&#]*)");
    resultArr = regex.exec(location.search);
    return resultArr === null ? "" : decodeURIComponent(resultArr[1].replace(/\+/g, " "));
}

Answer 6

JavaScript will parse the URL for you.

const url = new URL(location.href);
url.searchParams.get('ID');

Here's a good reference for using the output of the URL() constructor.