pass value from MVC View to MVC Controller depending on checkbox checked

in a MVC C# View I show the records of specifics employees, for that I use MVCScaffolding and the model below

 public class Developer
    {
        public int code { get; set; }
        public string areaDev { get; set; }
        public string nameDev { get; set; }
        public string expDev { get; set; }
        public string langDev { get; set; }
    }

the view uses razor and for every record there is a checkbox input

@model IEnumerable<WebApplication1.Models.Developer>

@using(Html.BeginForm("ShowRecords","Home"))
{

<table class="table">
    <tr>
        <th>@Html.DisplayNameFor(model => model.code)</th>
        <th>@Html.DisplayNameFor(model => model.areaDev)</th>
        <th>@Html.DisplayNameFor(model => model.nameDev)</th>
        <th>@Html.DisplayNameFor(model => model.expDev)</th>
        <th>@Html.DisplayNameFor(model => model.langDev)</th>
        <th>select</th>
    </tr>

@foreach (var item in Model) {
    <tr>
        <td>@Html.DisplayFor(modelItem => item.code)</td>
        <td>@Html.DisplayFor(modelItem => item.areaDev)</td>
        <td>@Html.DisplayFor(modelItem => item.nameDev)</td>
        <td>@Html.DisplayFor(modelItem => item.expDev)</td>
        <td>@Html.DisplayFor(modelItem => item.langDev)</td>
        <td><input type="checkbox" name="code" value="@item.code" /></td>
    </tr>
}
</table>
<input type="submit" value="SEND" />
}

and what I want is to retrieve the information of code(integer code) when the user click the checkbox of one/many specific records displayed in the view,

for that in my controller I receive a int[] as shown below

  public ActionResult ShowRecords(int[] datos)
    {
        {
            foreach(var item in datos)  
            {  ... some code goes here ... }     
            return View(); 
        }

But I don't receive anything from the view, always receive NULL

could you please help me and tell how to retrieve the code info of the due checked row in my controller?