How to POST in .Net Core MVC - asp.net

Question

i have a login page with Username and Password inputs and also a submit button. I want to call a method in my Controller that checks if the data matches and shows the result. how do i call that method? I tried the following but it didnt work it passes those as parameters
#using (Html.BeginForm("Logmein", "LoginController", FormMethod.Post))
{
<form method="post">
<div class="input-group mt-3">
<div class="input-group-prepend">
</div>
<input type="text" class="form-control" placeholder="Username" asp-for="Userusername">
</div>
<div id="login_usernametxt" class="input-group mt-2">
<input id="login_passwordtxt" type="password" class="form-control" placeholder="Password" asp-for="Userpassword">
</div>
<button id="login_signinbtn" class="mt-3 btn bg-warning text-light" style="float: right;" formmethod="post">Sign in</button>
</form>
}
here is my controller.
public class LoginController : Controller
{
public LoginInfo Logininformation { get; set; }
public IActionResult Userlogin()
{
return View();
}
[HttpPost]
public IActionResult Logmein()
{
//checks if the data matches....
return RedirectToPage("/Home/Index");
}
}

Answer 1

Tyr to include model with following properties Userusername,Userpassword in Logmein() method
Also u can remove html helper method ( #using (Html.BeginForm("Logmein", "LoginController", FormMethod.Post)))
Ex:
<form method = "post" asp-controller = "Login" asp-action = "Logmein" >
<div class="input-group mt-3">
<div class="input-group-prepend">
</div>
<input type="text" class="form-control" placeholder="Username" asp-for="Userusername">
</div>
<div id="login_usernametxt" class="input-group mt-2">
<input id="login_passwordtxt" type="password" class="form-control" placeholder="Password" asp-for="Userpassword">
</div>
<input type = "submit" value = "Login" />
</form>
Model Class
public class Login
{
public string Userusername { get; set; }
public string Userpassword { get; set; }
}
Controller Method:
[HttpPost]
public IActionResult Logmein(LoginModel login)
{
//checks if the data matches....
return RedirectToPage("/Home/Index");
}