jQuery to pass data in Ajax call to MVC action method

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I have two lists (list-left and list-right) prepared and populate. Then I have this JS code to move elements from one list to another. And it works fine.

$(function () {
    $('body').on('click', '.list-group .list-group-item', function () {
        $(this).toggleClass('active');
    });
    $('.list-arrows button').click(function () {
        var $button = $(this), actives = '';
        if ($button.hasClass('move-left')) {
            actives = $('.list-right ul li.active');
            actives.clone().appendTo('.list-left ul');
            actives.remove();
        } else if ($button.hasClass('move-right')) {
            actives = $('.list-left ul li.active');
            actives.clone().appendTo('.list-right ul');
            actives.remove();
        }        
    });
});

But honestly I don’t know how to pass the result back to codebehind when user clicks the submit button on the form?

This is my cshtml code:

@using AuthDatabase.Entities
@using Identity.Models
@model RoleEdit

@{
    ViewData["Title"] = "Edit role";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

<h1>@ViewData["Title"]</h1>
<br />
<h4>Roles</h4>
<hr />
<div asp-validation-summary="All" class="text-danger"></div>

<form method="post">
    <input type="hidden" name="roleName" value="@Model.Role.Name" />
    <input type="hidden" name="roleId" value="@Model.Role.Id" />
    <div class="row">
        <div class="dual-list list-left col-md-5">
            <h5>No roles</h5>
            <div class="well text-right">
                <div class="row">
                    <div class="col-md-10">
                        <div class="input-group">
                            <span class="input-group-addon glyphicon glyphicon-search"></span>
                            <input type="text" name="SearchDualList" class="form-control" placeholder="search" />
                        </div>
                    </div>
                </div>
                <ul class="list-group">
                    @foreach (AppUser user in Model.NonMembers)
                    {
                        <li class="list-group-item">@user.UserName</li>
                    }
                </ul>
            </div>
        </div>
        <div class="list-arrows col-md-1 text-center">
            <button class="btn btn-default btn-sm move-left" type="button">
                <span class="btn btn-primary"><</span>
            </button>

            <button class="btn btn-default btn-sm move-right" type="button">
                <span class="btn btn-primary">></span>
            </button>
        </div>
        <div class="dual-list list-right col-md-5">
            <h5>With roles</h5>
            <div class="well">
                <div class="row">
                    <div class="col-md-10">
                        <div class="input-group">
                            <input type="text" name="SearchDualList" class="form-control" placeholder="search" />
                            <span class="input-group-addon glyphicon glyphicon-search"></span>
                        </div>
                    </div>
                </div>
                <ul class="list-group">
                    @foreach (AppUser user in Model.Members)
                    {
                        <li class="list-group-item">@user.UserName</li>
                    }
                </ul>
            </div>
        </div>
    </div>
    <br />
    <a asp-action="Index" class="btn btn-secondary">Back to List</a>
    <button type="submit" class="btn btn-primary">Save</button>
</form>

@section Scripts
{
    <script src="~/js/lists.js" asp-append-version="true"></script>
}

And my controller:

       public async Task<IActionResult> Edit(string id)
        {
            IdentityRole role = await _roleManager.FindByIdAsync(id);
            List<AppUser> members = new List<AppUser>();
            List<AppUser> nonMembers = new List<AppUser>();
            foreach (AppUser user in _userManager.Users)
            {
                var list = await _userManager.IsInRoleAsync(user, role.Name) ? members : nonMembers;
                list.Add(user);
            }
            return View(new RoleEdit
            {
                Role = role,
                Members = members,
                NonMembers = nonMembers
            });
        }



        [HttpPost]
        public async Task<IActionResult> Edit(RoleModification model)
        {
            IdentityResult result;
            if (ModelState.IsValid)
            {
                foreach (string userId in model.AddIds ?? new string[] { })
                {
                    AppUser user = await _userManager.FindByIdAsync(userId);
                    if (user != null)
                    {
                        result = await _userManager.AddToRoleAsync(user, model.RoleName);
                        if (!result.Succeeded)
                            Errors(result);
                    }
                }
                foreach (string userId in model.DeleteIds ?? new string[] { })
                {
                    AppUser user = await _userManager.FindByIdAsync(userId);
                    if (user != null)
                    {
                        result = await _userManager.RemoveFromRoleAsync(user, model.RoleName);
                        if (!result.Succeeded)
                            Errors(result);
                    }
                }
            }

            if (ModelState.IsValid)
                return RedirectToAction(nameof(Index));
            else
                return await Edit(model.RoleId);
        }

The [HttpPost] Edit action requires RoleModification object with two arrays of strings (changes on the lists -> it is now based on previous solution without jquery). It would be also suitable to have only one list-right passed.

 public class RoleModification
    {
        [Required]
        public string RoleName { get; set; }
        public string RoleId { get; set; }
        public string[] AddIds { get; set; }
        public string[] DeleteIds { get; set; }
    }

Answer

  $('#submitBtn').on('click', function () {           
  let addIds = [];            
 $('.list-right ul li').each(function (index) {                
 addIds.push($(this).text());             
});  
ajaxSubmit(addIds);          
       });     
});
function ajaxSubmit(input){
$.ajax({
url:'/controller/action',
method:'POST',
data:input --- or {input}
success:function(){
console.log('success');},
error:function(x,y,z){
console.log(x,y,z)};}
}); 
}

and your controller muset be like this

public ActionResult Edit(List<string> input)


Source: stackoverflow