Create a dropdownlist and get the selected id Asp.net MVC

Question

I need to create a Dropdownlist at runtime with 2 choices. With this, I need to do a check taking the selected record and then accessing such method. This after clicking on a ActionLink.

How to set an id for this dropdownlist to touch it? How can I do this?

So far I’ve done so:

<td>
    @Html.DropDownListFor(modelItem => item.EscolhaBanco, new SelectList(new List<Object>
    {
         new {value = 0, text = ""},
         new {value = 1, text = "Bradesco"},
         new {value = 2, text = "Santander"}
    }, "value", "text", 0))
</td>

 <td>@Html.ActionLink("Imprimir", "ImprimirBoleto", new { Fatura = item.NumeroDocumento }, new { target = "_blank" })</td>

Answer 1

Set an anonymous object in the argument HtmlAttributes as follows:

@Html.DropDownListFor(modelItem => item.EscolhaBanco, new SelectList(new List<Object>
{
     new {value = 0, text = ""},
     new {value = 1, text = "Bradesco"},
     new {value = 2, text = "Santander"}
}, new { id = "IdDoMeuDropDownList" }))

---

EDIT

To pass the selected value to the Controller, you’ll have to use a <button> instead of a ActionLink. It would look like this:

@using (Html.BeginForm()) 
{
    <td>
        @Html.DropDownListFor(modelItem => item.EscolhaBanco, new SelectList(new List<Object>
    {
        new {value = 0, text = ""},
        new {value = 1, text = "Bradesco"},
        new {value = 2, text = "Santander"}
    }, "value", "text", 0))
    </td>

    <input type="submit" value="Enviar" class="btn btn-default" />
}

I don’t know if you’ve defined a Viewmodel for this, but the correct is to define the Viewmodel and make the View use it:

namespace MeuProjeto.ViewModels
{
    public class EscolhaBancoViewModel 
    {
        public int EscolhaBanco { get; set; }
    }
}

To View gets like this:

@model MeuProjeto.ViewModels.EscolhaBancoViewModel

@using (Html.BeginForm()) 
{
    <td>
        @Html.DropDownListFor(modelItem => item.EscolhaBanco, new SelectList(new List<Object>
    {
        new {value = 0, text = ""},
        new {value = 1, text = "Bradesco"},
        new {value = 2, text = "Santander"}
    }, "value", "text", 0))
    </td>

    <input type="submit" value="Enviar" class="btn btn-default" />
}

And the Controller:

public ActionResult MinhaAction(EscolhaBancoViewModel viewModel) 
{
    // O valor vai aparecer em viewModel.EscolhaBanco
}