public class PersonController : Controller {
    public ActionResult Buscar(int id)
    {
        var mm = DataBase.getById(id);
        return View(mm);
    }
 }

public class DataBase
{
    private static List<Person> people = new List<Person>();
    private static int _nextId = 1;
    public static List<Person> getAll() {
        return people;}
    public static Person getById(int id)
    {
        var buscar = people.Find(x => x.Id == id);
        if (buscar == null)
        {
            throw new ArgumentNullException("id");
        }
        return buscar;}

@using (Html.BeginForm("Buscar", "Person",FormMethod.Get))
  {
 <form>
 Title: @Html.TextBox("id");
 <input type="submit"
 name="name"value="Buscar"/>
 </form>
   }
  <p>@Html.ActionLink("Create New",
 "Create")
  </p>
  <table class="table">
  <tr>
  <th>
 @Html.DisplayNameFor(model => model.Id)
</th>
 <th>@Html.DisplayNameFor(model =>
  model.Name)
    </th>
 <th>@Html.DisplayNameFor(model =>
   model.Age)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.Street)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.City)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.State)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.Zipcode)
    </th>
    <th></th>
</tr>

@foreach (var item in Model)
{
<tr>
    <td>
        @Html.DisplayFor(modelItem => item.Id)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.Name)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.Age)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.Street)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.City)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.State)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.Zipcode)
    </td>
    <td>
        @Html.ActionLink("Edit", "Edit", new { id = item.Id }) |
        @Html.ActionLink("Details", "Details", new { id = item.Id }) |
        @Html.ActionLink("Delete", "Delete", new { id = item.Id })
    </td>
</tr>
}

public class RouteConfig
{
    public static void RegisterRoutes(RouteCollection routes)
    {
        routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
        );
    }
}

@using (Html.BeginForm("Buscar", "Person",FormMethod.Post))
{

    Title: @Html.TextBox("id");
    <input type="submit" name="name"value="Buscar"/>

}

@using (Html.BeginForm("xx", "Person", FormMethod.Post))
  {
      <p>@Html.ActionLink("Create New", "Create")
      </p>
      <table class="table">
      <tr>
      <th>
     @Html.DisplayNameFor(model => model.Id)
    </th>
     <th>@Html.DisplayNameFor(model =>
      model.Name)
        </th>
     <th>@Html.DisplayNameFor(model =>
       model.Age)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Street)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.City)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.State)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Zipcode)
        </th>
        <th></th>
    </tr>

    @foreach (var item in Model)
    {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.Id)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Name)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Age)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Street)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.City)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.State)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Zipcode)
        </td>
        <td>
            @Html.ActionLink("Edit", "Edit", new { id = item.Id }) |
            @Html.ActionLink("Details", "Details", new { id = item.Id }) |
            @Html.ActionLink("Delete", "Delete", new { id = item.Id })
        </td>
    </tr>
    }
}

public class PersonController : Controller {

    [HttpPost]
    public ActionResult Buscar(int id)
    {
        var mm = DataBase.getById(id);
        return View(mm);
    }

 }