Pass parameter to a C# MVC Controller

Question

I am learning programs in ASP.NET MVC C# and would like to know how I pass a data from a textbox to a controller. That is, I want to enter a value(id) in the View Index in a textbox and when I click Submit it returns me to View Details with the id I typed in the Index view. This example is that it takes by the Name, Tel and CPF through the id I type in the view index. The Details view is working perfectly, when I pass the id by url it shows me the person’s data.

Controller

public class HomeController : Controller
{
    //
    // GET: /Home/

    public ActionResult Index()
    {
        return View();
    }

    public ViewResult Details(int id )
    {
        ClienteEntity cliente = new ClienteEntity(id);
      //  var cli = cliente.FetchUsingPK(id);
        return View(cliente);
    }

}



    {
        ClienteEntity cliente = new ClienteEntity(id);
      //  var cli = cliente.FetchUsingPK(id);
        return View(cliente);
    }

}

Index View

@{
ViewBag.Title = "Index";
}
<h2>Digite um Numero: @Html.TextBox("id")</h2>
<input type="submit" value="Enviar" />

View from the Details

<h2>Dados Do Cliente</h2>
<h2>Nome: @Model.NomeCliente</h2>
<h2>CPF: @Model.Cpf</h2>
<h2>Tel: @Model.Tel</h2>

Answer 1

Some things were missing:

In his View Index:

@{
    ViewBag.Title = "Index";
}

@using (Html.BeginForm()) 
{
    <h2>Digite um Numero: @Html.TextBox("id")</h2>
    <input type="submit" value="Enviar" />
}

This is because you will send information to a Controller, so it doesn’t make sense to have a TextBox without a form containing it.

In the Controller, add a method that accepts the POST of the information sent, as below:

public class HomeController : Controller
{
    //
    // GET: /Home/

    public ActionResult Index()
    {
        return View();
    }

    [HttpPost]
    public ActionResult Index(int id)
    {
        return RedirectToAction("Details", new { id = id });
    }

    public ViewResult Details(int id)
    {
        ClienteEntity cliente = new ClienteEntity(id);
      //  var cli = cliente.FetchUsingPK(id);
        return View(cliente);
    }

}


    /* Comentei esta parte porque ela não faz sentido no seu código.
    {
        ClienteEntity cliente = new ClienteEntity(id);
      //  var cli = cliente.FetchUsingPK(id);
        return View(cliente);
    } */

}