Topic: Stepper validation issue with ASP.Net Core unobtrusive validation

Jeffrey Hermosa free asked 4 years ago

I am using jquery mdboostrap pro for my core project

I am using jquery unobtrusive validation to validate my fields, and it is working fine. but when I add stepper.cs & stepper.js files, the validation does not re-validate when I type in data on the field and the instant feedback that jquery unobtrusive provides does not work anymore.

Validation rules comes from my data-annotation on my domain classes

Expected behavior With out adding stepper.cs & stepper.js

1) enter image description here 2) enter image description here 3) enter image description here

Actual behavior after adding stepper.cs and stepper.js

1) enter image description here 2) enter image description here 3) enter image description here

Resources (screenshots, code snippets etc.)

enter image description here

MDBootstrap staff commented 4 years ago

Can you please post your HTML code in our snippet environment with the js initialization of MDB components? I will help you prepare the proper structure of our stepper validation.

Best Regards, Piotr

Jeffrey Hermosa free commented 4 years ago

I created a snippet. the HTML you see there is the generated HTML by core

MDBootstrap staff commented 4 years ago

The problem is in the js initialization I am 100% sure. I can not post the premium add-on code (obvious reasons) to our snippets to show you that but I tested this element and it behaves exactly like on the demo page. There has to be an issue with the implementation. Can you give us the source of the js that conduct validation of this form?

Jeffrey Hermosa free commented 4 years ago

I am not sure what you mean by giving you the js source that conduct validation. because in we don't write validation code with js. we just decorate our domain classes with data annotations, and let this package write the needed client validation code in js.

Jeffrey Hermosa free commented 4 years ago


I managed to make unobtrusive work, I took your comment regarding initialization and I tried to load stepper.js before jquery.validate.unobtrusive.js and validation worked.

Bartłomiej Malanowski staff commented 4 years ago

@Jeffrey Hermosa do you still need help from our team?

Jeffrey Hermosa free commented 4 years ago

for this particular issue no need, thanks.

Jeffrey Hermosa free answered 4 years ago


I came across this post from 2 years ago by this user: kinetiq and I'm wondering if this issue that he found was addressed already with latest version of mdb pro. I suspect my validation issue is similar to what he experienced.

In ASP.Net Core MVC, we write .chtml code or razor pages as they call it. these razor pages allows you to write both HTML and C# code that can be embedded within the html, and with .net core 3 there these tag is a screenshot of what it looks like:this is the code that we write on a razor pageenter image description here

Then when you Build and run the projectthe actual HTML will be rendered like thisenter image description here

For reference on how Validation works on ASP.Net Core, maybe you can check out these videos, as I think this guy can explain better than me.ASP NET Core model validation

and this one that actually discuss what jquery unobtrusive validation do.ASP NET Core client side validation

And also when I run the project, and typed in a value on the input field, I get this error from the console: enter image description here

Please insert min. 20 characters.


Hire our experts to build a dedicated project. We'll analyze your business requirements, for free.



Specification of the issue

  • User: Free
  • Premium support: No
  • Technology: MDB jQuery
  • MDB Version: 4.8.10
  • Device: PC
  • Browser: Chrome
  • OS: Windows 10
  • Provided sample code: No
  • Provided link: No