ASP MVC does not validate model - asp.net

Question

There is a simple view:
#model Bla.SomeModel
<div class="soket-item">
<form>
<div class="form-group socket-info-group">
<label asp-for="Count" class="control-label"></label>
<input name="Sockets[#index].Count" asp-for="Count" class="form-control" />
<span asp-validation-for="Count" class="text-danger"></span>
</div>
<input type="submit" value="Push!" />
</form>
</div>
And there is a simple model :
public class SomeModel
{
[Required]
[Display(Name = "Charge Count")]
[Range(1, 10)]
public int Count { get; set; }
}
As I set Range attribute I expect a warning to appear when a negative value entering. But that doesn't happen.
Why ?
UPD Controller :
namespace Bla.Controllers
{
[Route("Socket")]
public class MyController : Controller
{
[Route("New")]
public ActionResult NewSocketForm()
{
return View();
}
}
}

Answer 1

Here is the updated code:
Code for UI
#model SomeModel
<div class="soket-item">
<form asp-controller="Home" asp-action="New" method="post" >
<div class="form-group socket-info-group">
<label asp-for="Count" class="control-label"></label>
<input name="Count" type="text" asp-for="Count" class="form-control" />
<span asp-validation-for="Count" class="text-danger"></span>
</div>
<input type="submit" value="Push!" />
</form>
</div>
Code for Controller
[HttpPost]
public IActionResult New(SomeModel someModel)
{
if (!ModelState.IsValid)
{
ViewBag.ErrorMessage = "Invalid Input";
}
// do your things
return View("Index");
}