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here's the code dropdown and textbox:

<form id="myForm">
<label for="departmentsDropdown">Department</label>
<select class="form-control" onchange="getValue()"
        id="numero_control" name="numero_control">
</select><br />
<input type="text" value="" id="Nombre" /><br>
<input type="text" value="" id="id" /><br>

function onchange:
<script src="~/Scripts/jquery-3.4.1.min.js"></script>

     <div class="jumbotron">

    <script type="text/javascript">
    $(document).ready(function () {
            type: "GET",
            url: "/Home/GetData",
            data: "{}",
            success: function (data) {
                var s = '<option value="-1">Porfavor selecciona algun valor</option>';
                for (var i = 0; i < data.length; i++) {

                    s += '<option value="' + data[i].Nombre + data[i].id + '">' + 
            data[i].numero_control + '</option>';


    function getValue() {
        var myVal = $("#numero_control").val();


Controller action method:

crudEntities db = new crudEntities();
    public ActionResult Index()
        return View();

    public ActionResult GetData()
        var data = from als in
    db.registro select new 
     {, als.Nombre,als.numero_control };
        return Json(data.ToList(),

What I have tried:

my error is I have two value in the dropdown i was load in two textbox the problem is if i run the project watch the two value in one textbox input:

Image of the error

I would like it to come out like this: I have information such as id, Nombre, numero_control. When I choose the numero_control from the dropdown, I want to print id on one of the 2 textboxes and id on the other textbox.

I followed this video to do it.
Updated 22-Aug-21 1:39am

1 solution

Haha same problem i have i follow the same tutorial
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Richard Deeming 23-Aug-21 4:50am    
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