How to Check User already created list items and enable other fields in New Item form?

Question

I created a custom list with some fields & Users will fill enter the data. Custom fields: Employee Name Department City Change Department (Yes/No drop down) (disabled when the first entry in NewItem form) Reason

What I want that when the same user (logged in User) enters the data a second time here one Popup or message should show to the user and Enable the field 'Change Department' and when the user selects 'Yes', 'Reason' filed should be enabled and he will 'Save' the list item. In case 'No' User can not save the list item & 'Save' button not enabled for this user and he will only close the form.

Here

How I check the condition that when the same logged-in user already created a list of items?
and show the message to user & Enable Change Department field & based on the value of this field enable Reason field and Enable the Save button.

Answer 1

Hi, @adil

You could use cutom code(Rest API) to check when the same logged-in user already created a list of items.

Using the rest api to get the listitems created by current user, alert message if the items.length >0, for example:

var userId = _spPageContextInfo.userId;  
var requestUri = _spPageContextInfo.webAbsoluteUrl + "/_api/Web/Lists/getbytitle('ListName')/Items?$filter=AuthorId eq " + userId;  
$.ajax  
    ({  
        url: requestUri,  
        type: "GET",  
        headers: {  
            "ACCEPT": "application/json;odata=verbose"  
        },  
        success: function (data) {  
            if ($(data.d.results).length == 0) { }  
            else { //popup message here }  
        },  
        error: function () {  
        }  
    });  

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