Validation In ASp.net Core

Validation for already exist User

already exist validation done using asp.net core

        [Required]
      
        [Remote(action: "IsEmailInUse", controller: "Home")]
       
        public string JobName { get; set; }
        
        controller method
        [AcceptVerbs("Get", "Post")]
[AllowAnonymous]
public async Task<IActionResult> IsJobNameInUse(string JobName)
{

ScheduleDapper group = ScheduleDapper.CheckDuplicateJobName(JobName);


if (group == null)
{
return Json(true);
}
else
{
return Json($"JobName {JobName} is already in use.");
}
}

Html
@Html.TextBoxFor(model => model.JobName, new {placeholder="Job Name", htmlAttributes = new { @class = "form-control" } })


script files

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.2/jquery.validate.min.js"></script>



	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validation-unobtrusive/3.2.12/jquery.validate.unobtrusive.min.js"></script>
  
  Note: here order of script is importent