How to check attachment before on submit client script in catalog item

[dheeru_1994]

Hii All 
i am writing this script in catalog item to know that item has attachment attached or not  on submit client script but 
error getting 
below is the code 

function onSubmit() {
    // Check if attachments exist
    var attachment = g_form.getAttachmentList();
    
    if (attachment.length > 0) {
        // If attachments are found, allow submission
        alert('Attachments found.');
        return true;
    } else {
        // If no attachments found, prevent submission and prompt user
        alert('Please attach a file.');
        return false;
    }
}

when i order item   error occure  Error MessageonSubmit   script error: TypeError: g_form.hasAttachmentList is not a function:
function () { [native code] }
glide record and script include not to use  is here anyone who can solve the issue now 

[Service_RNow]

Hi @dheeru_1994 

(A)Try to this code

function onSubmit() {
   //Type appropriate comment here, and begin script below
   
	var count = getSCAttachmentCount();//Checking attachment count.
	if(count <= 0) {
		alert('You must attach this item');//If there is no any attachment, it will show alert message and abort to submit form. 
		return false;
	}
}

Second Approach

(B) For example: You need to ensure there are exact 1 attachment added before submission

Script: onSubmit

Note: Ensure Isolate Script field is set to False for this Catalog Client Script to ensure DOM manipulation works

function onSubmit() {
	//Type appropriate comment here, and begin script below

var countRequired = 1;
	if(window == null){
		// portal
		if(this.document.getElementsByClassName('get-attachment').length != countRequired) {
			alert('You must add 1 attachments before submitting this request.');
			return false;
		}
	}
	else{
		// native view
         var length = $j("li.attachment_list_items").find("span").length;
		if(length != countRequired){
			alert('You must add 1 attachments before submitting this request.');
			return false;
		}
	}
}

Isolate Script: Set to False

Please mark reply as Helpful/Correct, if applicable. Thanks!

[dheeru_1994]

function onSubmit() {
   //Type appropriate comment here, and begin script below
   
	var count = getSCAttachmentCount();//Checking attachment count.
	if(count <= 0) {
		alert('You must attach this item');//If there is no any attachment, it will show alert message and abort to submit form. 
		return false;
	}
}

this is not working error giving 

[Service_RNow · Accepted solution]

HI @dheeru_1994 please try to second approach

Script: onSubmit

Note: Ensure Isolate Script field is set to False for this Catalog Client Script to ensure DOM manipulation works

function onSubmit() {
	//Type appropriate comment here, and begin script below

var countRequired = 1;
	if(window == null){
		// portal
		if(this.document.getElementsByClassName('get-attachment').length != countRequired) {
			alert('You must add 1 attachments before submitting this request.');
			return false;
		}
	}
	else{
		// native view
         var length = $j("li.attachment_list_items").find("span").length;
		if(length != countRequired){
			alert('You must add 1 attachments before submitting this request.');
			return false;
		}
	}
}

Please mark reply as Helpful/Correct, if applicable. Thanks!

[dheeru_1994]

i can not use dom manipulation   now how can i achieve this here