Я новичок в ASP. NET, я пытаюсь выяснить, есть ли способ манипулирования отдельным столбцом данных в таблице столбцов оценок. Я работаю над системой скоринга и пытаюсь выяснить, есть ли способ, которым я получаю один балл, который не влияет на остальные, как только данные меняются, новый номер остается на странице, не оставляя того же значения после перезагрузки. , Использование как может быть, как локальное хранилище. 
Вид
@model List<UNFHackAThon.Models.ViewModels.OrderDetailsViewModel>
@using UNFHackAThon.Utility
@{
ViewData["Title"] = "ManageOrder";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<form method="post">
<br /><br />
<br />
<div>
<input class="btn btn-primary" value="Export Analytics" onclick="fnExcelReport();" />
<iframe id="txtArea1" style="display:none"></iframe>
</div>
<br />
<br />
<div class="border backgroundWhite">
<div class="row">
<div class="col-6">
<h2 class="text-info"> Leader Board</h2>
</div>
</div>
<br />
<div>
@if (Model.Count() > 0)
{
<table class="table" id="headerTable">
<thead>
<tbody id="tbody">
<tr class="table-secondary">
<th>
Paticipant Name
</th>
<th>
Competition Time
</th>
<th>
Competition(s) Participated in.
</th>
<th>
Scores
</th>
</tr>
<thead>
@foreach (var item in Model)
{
<tr>
<td>
@Html.DisplayFor(m => item.OrderHeader.PickupName)
</td>
<td>
@Html.DisplayFor(m => item.OrderHeader.PickUpTime)
</td>
<td>
<ul>
@foreach (var details in item.OrderDetails)
{
<li>@details.Name</li>
}
</ul>
<td>
<h6>@item.OrderDetails.Count</h6>
@if (User.IsInRole(SD.ManageUser))
{
<div class="col-6 col-sm-4 col-lg-6">
<div class="float-right mx-1">
<button type="submit" class="btn btn-primary" asp-action="add" asp-controller="OrderController" asp-route-cartsId="@item.OrderDetails.Count">
<i class="fas fa-plus"></i>
</button>
</div>
<div class="float-right mx-1">
<button type="submit" class="btn btn-danger" asp-action="decrease" asp-controller="OrderController" asp-route-cartsId="@item.OrderDetails.Count">
<i class="fas fa-minus"></i>
</button>
</div>
</div>
}
</td>
</tr>
}
<tbody>
</table>
}
else
{
<p>No competition history exists...</p>
}
</div>
</div>
</form>
@section scripts{
<script>
function fnExcelReport() {
var tab_text = "<table border='2px'><tr bgcolor='#87AFC6'>";
var textRange; var j = 0;
tab = document.getElementById('headerTable'); // id of table
for (j = 0; j < tab.rows.length; j++) {
tab_text = tab_text + tab.rows[j].innerHTML + "</tr>";
}
tab_text = tab_text + "</table>";
tab_text = tab_text.replace(/<A[^>]*>|<\/A>/g, "");//remove if u want links in your table
tab_text = tab_text.replace(/<img[^>]*>/gi, ""); // remove if u want images in your table
tab_text = tab_text.replace(/<input[^>]*>|<\/input>/gi, ""); // reomves input params
var ua = window.navigator.userAgent;
var msie = ua.indexOf("MSIE ");
if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./)) // If Internet Explorer
{
txtArea1.document.open("txt/html", "replace");
txtArea1.document.write(tab_text);
txtArea1.document.close();
txtArea1.focus();
sa = txtArea1.document.execCommand("SaveAs", true, "Say Thanks to Sumit.xls");
}
else //other browser not tested on IE 11
sa = window.open('data:application/vnd.ms-excel,' + encodeURIComponent(tab_text));
return (sa);
}
</script>
}
Модель
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using UNFHackAThon.Models;
namespace UNFHackAThon.Models.ViewModels
{
public class OrderDetailsViewModel
{
public OrderHeader OrderHeader { get; set; }
public List<OrderDetails> OrderDetails { get; set; }
public IEnumerable<ApplicationUser> ApplicationUser { get; set; }
public List<CompetitionCart> listCart { get; set; }
}
}
Контроллер
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using System.Collections.Generic;
using UNFHackAThon.Data;
using UNFHackAThon.Models;
using UNFHackAThon.Models.ViewModels;
using UNFHackAThon.Utility;
using Microsoft.AspNetCore.Http;
//
namespace UNFHackAThon.Areas.Customer.Controllers
{
[Area("Participants")]
public class OrderController : Controller
{
private ApplicationDbContext _db;
public OrderController(ApplicationDbContext db)
{
_db = db;
}
[Authorize]
public async Task<IActionResult> Confirm(int id)
{
var claimsIdentity = (ClaimsIdentity)User.Identity;
var claim = claimsIdentity.FindFirst(ClaimTypes.NameIdentifier);
OrderDetailsViewModel orderDetailsViewModel = new OrderDetailsViewModel()
{
OrderHeader = await _db.OrderHeader.Include(o => o.ApplicationUser).FirstOrDefaultAsync(o => o.Id == id && o.UserId == claim.Value),
OrderDetails = await _db.OrderDetails.Where(o => o.OrderId == id).ToListAsync()
};
return View(orderDetailsViewModel);
}
public IActionResult Index()
{
return View();
}
[Authorize]
public async Task<IActionResult> OrderHistory()
{
var claimsIdentity = (ClaimsIdentity)User.Identity;
var claim = claimsIdentity.FindFirst(ClaimTypes.NameIdentifier);
List<OrderDetailsViewModel> orderList = new List<OrderDetailsViewModel>();
List<OrderHeader> OrderHeaderList = await _db.OrderHeader.Include(o => o.ApplicationUser).Where(u => u.UserId == claim.Value).ToListAsync();
foreach (OrderHeader item in OrderHeaderList)
{
OrderDetailsViewModel individual = new OrderDetailsViewModel
{
OrderHeader = item,
OrderDetails = await _db.OrderDetails.Where(o => o.OrderId == item.Id).ToListAsync()
};
orderList.Add(individual);
}
return View(orderList);
}
// May add admin and participant user
[Authorize]
public async Task<IActionResult> ManageOrder()
{
var claimsIdentity = (ClaimsIdentity)User.Identity;
var claim = claimsIdentity.FindFirst(ClaimTypes.NameIdentifier);
List<OrderDetailsViewModel> orderDetailsVM = new List<OrderDetailsViewModel>();
List<OrderHeader> OrderHeaderList = await _db.OrderHeader.Include(o => o.ApplicationUser).Where(u => u.UserId != claim.Value).ToListAsync();
List<OrderHeader> OrderHeaderLists = await _db.OrderHeader.Include(o => o.ApplicationUser).Where(u => u.UserId == claim.Value).ToListAsync();
foreach (OrderHeader item in OrderHeaderList)
{
OrderDetailsViewModel individual = new OrderDetailsViewModel
{
OrderHeader = item,
OrderDetails = await _db.OrderDetails.Where(o => o.OrderId == item.Id).ToListAsync()
};
orderDetailsVM.Add(individual);
foreach (OrderHeader items in OrderHeaderLists)
{
OrderDetailsViewModel individuals = new OrderDetailsViewModel
{
OrderHeader = items,
OrderDetails = await _db.OrderDetails.Where(o => o.OrderId == item.Id).ToListAsync()
};
orderDetailsVM.Add(individuals);
}
}
return View(orderDetailsVM);
}
public async Task<IActionResult> GetOrderDetails(int Id)
{
OrderDetailsViewModel orderDetailsViewModel = new OrderDetailsViewModel()
{
OrderHeader = await _db.OrderHeader.FirstOrDefaultAsync(m => m.Id == Id),
OrderDetails = await _db.OrderDetails.Where(m => m.OrderId == Id).ToListAsync()
};
orderDetailsViewModel.OrderHeader.ApplicationUser = await _db.ApplicationUser.FirstOrDefaultAsync(u => u.Id == orderDetailsViewModel.OrderHeader.UserId);
return PartialView("_IndividualOrderDetails", orderDetailsViewModel);
}
public async Task<IActionResult> Add(int cartsId)
{
var cart = await _db.OrderDetails.FirstOrDefaultAsync(c => c.Count == cartsId);
cart.Count += 1;
await _db.SaveChangesAsync();
return RedirectToAction(nameof(Index));
}
public async Task<IActionResult> Decrease(int cartsId)
{
var cart = await _db.OrderDetails.FirstOrDefaultAsync(c => c.Count == cartsId);
if (cart.Count == 1)
{
_db.OrderDetails.Remove(cart);
await _db.SaveChangesAsync();
var cnt = _db.OrderDetails.Where(u => u.Name == cart.Name).ToList().Count;
HttpContext.Session.SetInt32(SD.ssCompetitionCartCount, cnt);
}
else
{
cart.Count -= 1;
await _db.SaveChangesAsync();
}
return RedirectToAction(nameof(Index));
}
}
}