i get Error executing child request for handler - asp.net-mvc

Question

my LogIn is partial view. i pass a model that contain some fields of tbl_profile to partial view and fill it and then i pass filled model to a actionresult in [HttpPost] part and ...
but now i'm trouble in [HttpGet] part . i get this error on this line of cod " *#Html.Action("LogOn","Account")"*.
my code :
[HttpGet]
public ActionResult LogOn(string returnUrl)
{
using (var db = new MyContext())
{
var AllFeatureToLog = db.tbl_profile.Select(u => new UsersClass.LogOn { username = u.username, password_User = u.password_User }).ToList();
return PartialView(AllFeatureToLog);
}
}
class:
public class UsersClass
{
public class LogOn
{
public string username { get; set; }
public string password_User { get; set; }
}
}
LogOn.cshtml:
#model MyProject.Models.UsersClass.LogOn
#using (Html.BeginForm())
{
#Html.AntiForgeryToken()
<form class="signin-form">
#Html.TextBoxFor(m => m.username, new { #id = "username", #class = "input-block- level", #placeholder = "* enter username" })
#Html.TextBoxFor(m => m.password_User, new { #id = "password", #class = "input-block-level", #placeholder = "* enter pass" })
#Html.ValidationMessage("LoginError")
<label class="checkbox">
<input type="checkbox">remember me</label>
<button class="btn btn-medium btn-general input-block-level" type="submit"> enter</button>
</form>
}
error:
Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'

Answer 1

Use this instead ::
#{ Html.RenderAction("LogOn","Account"); }
This will fix your issue.

Answer 2

You sending List:
var AllFeatureToLog = db.tbl_profile.Select(u => new UsersClass.LogOn { username = u.username, password_User = u.password_User }).ToList();
return PartialView(AllFeatureToLog);
But your View expectiong only one model:
#model MyProject.Models.UsersClass.LogOn
Change: your ActionResult on sending one: var AllFeatureToLog = db.tbl_profile.Select(u => new UsersClass.LogOn { username = u.username, password_User = u.password_User }).Fist();
or View for getting List: #model IENumerable<MyProject.Models.UsersClass.LogOn>