External JavaScript file not functioning for Bootstrap modal

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1

Hey guys, I’m having trouble with my JavaScript code for a Bootstrap modal. It was working fine when I had it in my layout page, but now that I’ve moved it to a separate file, it’s not doing its job anymore. The popup shows up when I click the button, but I can’t interact with it.

I’ve double-checked the file path and added this to my layout’s head section:

<script type="text/javascript" src="~/Script/Modal.js"></script>

Here’s what’s in my Modal.js file:

$(function() {
  $('#popupWindow').on('hidden.bs.modal', function () {
    $('#newItemCheck').prop('checked', true);
    $('#parentInput, #parentInputLabel').show();
    $('#parentInput').val($('#popupTextInput').val());
    $('#popupWindow').modal('hide');
  });

  $('#popupWindow').on('click', '#findParent', function () {
    $('#parentInput').val($('#popupTextInput').val());
    $('#popupWindow').modal('hide');
  });

  if ($checkBox.data('wasSelected') && $('#parentInput').val()) {
    $('#newItemCheck').on('click', function () {
      $(this).prop('checked', false);
    });
  }
});

Am I missing something? The checkbox in my view looks like this:

<input type="checkbox" name="newItem" id="newItemCheck" data-toggle="modal" data-target="#popupWindow" data-wasSelected="false"> New

Any ideas what might be going wrong?

2

I encountered a similar issue when moving my JavaScript to an external file. Have you verified that jQuery is properly loaded before your Modal.js? Also, ensure your script references are in the correct order: jQuery first, then Bootstrap’s JavaScript, and finally your Modal.js.

Another potential issue could be the file path. Try using an absolute path instead of a relative one. Replace:

<script type="text/javascript" src="~/Script/Modal.js"></script>

with:

<script type="text/javascript" src="/Script/Modal.js"></script>

If these don’t resolve the issue, consider using browser developer tools to check for any console errors that might provide more insight into what’s going wrong.

3

I’ve run into this exact problem before, and it can be frustrating. One thing that helped me was using the browser’s console to debug. Open your developer tools and check for any error messages - they can be really revealing.

Also, make sure your Modal.js file is actually being loaded. Sometimes, especially with ASP.NET, the ‘~’ in the file path doesn’t resolve correctly. Try using a direct path like ‘/Scripts/Modal.js’ instead.

Another trick that worked for me was to add ‘defer’ to the script tag:

This ensures the script runs after the HTML is fully loaded.

Lastly, double-check that your modal ID in the HTML matches exactly what’s in your JavaScript. Even a small typo can cause issues. Good luck troubleshooting!

4

hey bob, sounds like a classic js loading issue. try moving ur script tag to the bottom of the body instead of the head. that way it loads after the dom is ready. also, make sure jquery is loaded before ur Modal.js file. if that doesnt work, try wrapping ur code in $(document).ready() function. good luck!