NToastNotify 不在异步帖子上显示消息

问题描述

我在 Get（甚至异步）toast 上实现了 NToastNotify。但是在发布时我无法获得吐司。

然而，一旦我返回页面，消息就会显示...

如何在帖子中直接获取数据保存或错误消息？

==========这里是我的页面 C# 代码

using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.EntityFrameworkCore;
using Microsoft.AspNetCore.Mvc.Rendering;
using NToastNotify;
using WorkCollaboration.Data;
using WorkCollaboration.Models;

namespace WorkCollaboration.Pages.Contacts
{ 
    public class CreateModel : PageModel
    {
        private readonly WorkCollaboration.Data.WorkCollaborationContext _context;
        private readonly IToastNotification toastNotification;
        public CreateModel(WorkCollaboration.Data.WorkCollaborationContext context,IToastNotification toastNotification)
        {
            _context = context;
            this.toastNotification = toastNotification;
        }

        public async Task<IActionResult> OnGetAsync()
        {
            CustomerDropDowndisp = await _context.CustomerDropDown.ToListAsync();  // Added for DropDown
            supplierDropDowndisp = await _context.supplierDropDown.ToListAsync();  // Added for DropDown

            //Success
            toastNotification.AddSuccesstoastMessage("Data Loaded successful");
            
            return Page();
        }


        [BindProperty]
        public Contact Contact { get; set; }
        public IEnumerable<CustomerDropDown> CustomerDropDowndisp { get; set; }
        public IEnumerable<supplierDropDown> supplierDropDowndisp { get; set; }

        // To protect from overposting attacks,enable the specific properties you want to bind to,for
        // more details,see https://aka.ms/RazorPagesCRUD.
        public async Task<IActionResult> OnPostAsync()
        {

            if (!ModelState.IsValid)
            {
                //Error
                toastNotification.AddErrorToastMessage("Model State is invalid");

                return Page();
            }

            _context.Contact.Add(Contact);

            //Success
            toastNotification.AddSuccesstoastMessage("Successfully saved");

            await _context.SaveChangesAsync();

            return RedirectToPage("/ContactsOverview/Index");
        }
    }
}

==== 这是我的页面代码 ========

我没有在这里实现任何东西（以防万一）

@page
@using WorkCollaboration.Models
@using Microsoft.AspNetCore.Localization
@using Microsoft.AspNetCore.Mvc.Localization
@model WorkCollaboration.Pages.Contacts.CreateModel

@{
    ViewData["Title"] = "Create";
    ViewData["RandomId"] = Guid.NewGuid().GetHashCode();
}

@inject IViewLocalizer Localizer
@await Component.InvokeAsync("NToastNotify")

<h1>@Localizer["Create"]</h1>
<h4>@Localizer["Contact"]</h4>
<p>
    <a asp-page="/ContactsOverview/Index">@Localizer["Back to Index"]</a>
</p>
<hr />
<div class="row">
    <div class="col-md-4">
        <form method="post">
            <div asp-validation-summary="ModelOnly" class="text-danger"></div>
            <div class="form-group">
                <label asp-for="Contact.ContactId" class="control-label"></label>
                <input asp-for="Contact.ContactId" value='@ViewData["RandomId"]' readonly="readonly" class="form-control" />
                <span asp-validation-for="Contact.ContactId" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.LastName" class="control-label"></label>
                <input asp-for="Contact.LastName" class="form-control" />
                <span asp-validation-for="Contact.LastName" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.FirstName" class="control-label"></label>
                <input asp-for="Contact.FirstName" class="form-control" />
                <span asp-validation-for="Contact.FirstName" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.CustomerId" class="control-label"></label>
            </div>
            <select id="CusId" asp-for="CustomerDropDowndisp" asp-items="@(new SelectList(Model.CustomerDropDowndisp,"CusId","CusName"))">
                <option value="" selected disabled>--Choose Customer--</option>
            </select>
            <div class="form-group">
                <input asp-for="Contact.CustomerId" readonly="readonly" class="form-control" />
                <span asp-validation-for="Contact.CustomerId" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.supplierId" class="control-label"></label>
            </div>
            <select id="SupId" asp-for="supplierDropDowndisp" asp-items="@(new SelectList(Model.supplierDropDowndisp,"SupId","SupName"))">
                <option value="" selected disabled>--Choose supplier--</option>
            </select>
            <div class="form-group">
                <input asp-for="Contact.supplierId" readonly="readonly" class="form-control" />
                <span asp-validation-for="Contact.supplierId" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.PrivateStreet" class="control-label"></label>
                <input asp-for="Contact.PrivateStreet" class="form-control" />
                <span asp-validation-for="Contact.PrivateStreet" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.PrivateStreetNo" class="control-label"></label>
                <input asp-for="Contact.PrivateStreetNo" class="form-control" />
                <span asp-validation-for="Contact.PrivateStreetNo" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.PrivateStreetAdditionalInfo" class="control-label"></label>
                <input asp-for="Contact.PrivateStreetAdditionalInfo" class="form-control" />
                <span asp-validation-for="Contact.PrivateStreetAdditionalInfo" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.PrivateZip" class="control-label"></label>
                <input asp-for="Contact.PrivateZip" class="form-control" />
                <span asp-validation-for="Contact.PrivateZip" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.Privatetown" class="control-label"></label>
                <input asp-for="Contact.Privatetown" class="form-control" />
                <span asp-validation-for="Contact.Privatetown" class="text-danger"></span>
            </div>
            <div class="form-group">
                @Html.LabelFor(model => model.Contact.PrivateCountry,htmlAttributes: new { @class = "form-group" })
                <div class="form-group">
                    @Html.DropDownListFor(model => model.Contact.PrivateCountry,new List<SelectListItem>
                    {
                        new SelectListItem {Text = "CH",Value = "CH",Selected = true },new SelectListItem {Text = "D",Value = "D" },new SelectListItem {Text = "FL",Value = "FL" },},new { @class = "form-control" })
                    @Html.ValidationMessageFor(model => model.Contact.PrivateCountry,"",new { @class = "text-danger" })
                </div>
            </div>
            <div class="form-group">
                <label asp-for="Contact.PrivatePhone" class="control-label"></label>
                <input asp-for="Contact.PrivatePhone" class="form-control" />
                <span asp-validation-for="Contact.PrivatePhone" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.BusinessPhone" class="control-label"></label>
                <input asp-for="Contact.BusinessPhone" class="form-control" />
                <span asp-validation-for="Contact.BusinessPhone" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.MobilePhone" class="control-label"></label>
                <input asp-for="Contact.MobilePhone" class="form-control" />
                <span asp-validation-for="Contact.MobilePhone" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.Mail" class="control-label"></label>
                <input type="email" asp-for="Contact.Mail" class="form-control" />
                <span asp-validation-for="Contact.Mail" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.Cusrating" class="control-label"></label>
                <input asp-for="Contact.Cusrating" value="0" class="form-control" />
                <span asp-validation-for="Contact.Cusrating" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.Suprating" class="control-label"></label>
                <input asp-for="Contact.Suprating" value="0" class="form-control" />
                <span asp-validation-for="Contact.Suprating" class="text-danger"></span>
            </div>
            <div class="form-group">
                @Html.LabelFor(model => model.Contact.CusBadges,htmlAttributes: new { @class = "form-group" })
                <div class="form-group">
                    @Html.DropDownListFor(model => model.Contact.CusBadges,new List<SelectListItem>
                    {
                        new SelectListItem {Text = "None",Value = "None",new SelectListItem {Text = "Iron",Value = "Iron" },new SelectListItem {Text = "bronze",Value = "bronze" },new SelectListItem {Text = "Silver",Value = "Silver" },new SelectListItem {Text = "Gold",Value = "Gold" },new SelectListItem {Text = "Platin",Value = "Platin" },new { @class = "form-control" })
                    @Html.ValidationMessageFor(model => model.Contact.CusBadges,new { @class = "text-danger" })
                </div>
            </div>
            <div class="form-group">
                @Html.LabelFor(model => model.Contact.SupBadges,htmlAttributes: new { @class = "form-group" })
                <div class="form-group">
                    @Html.DropDownListFor(model => model.Contact.SupBadges,new { @class = "form-control" })
                    @Html.ValidationMessageFor(model => model.Contact.SupBadges,new { @class = "text-danger" })
                </div>
            </div>
            <div class="form-group">
                <label asp-for="Contact.CusPoints" class="control-label"></label>
                <input asp-for="Contact.CusPoints" value="0" class="form-control" />
                <span asp-validation-for="Contact.CusPoints" class="text-danger"></span>
            </div>
            <div class="form-group">
                <label asp-for="Contact.SupPoints" class="control-label"></label>
                <input asp-for="Contact.SupPoints" value="0" class="form-control" />
                <span asp-validation-for="Contact.SupPoints" class="text-danger"></span>
            </div>
            <div class="form-group">
                <input type="submit" value="Create" class="btn btn-primary" />
                <a href="/ContactsOverview/Index" class="btn btn-primary">@Localizer["Back to List"]</a>
            </div>
        </form>
    </div>
</div>
<script src="~/lib/jquery/dist/jquery.min.js"></script>
<script src="~/lib/jquery-validation/dist/jquery.validate.min.js"></script>
<script src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"></script>
<script>
    $("#CusId").on("change",function () {
        $("#Contact_CustomerId").val($("#CusId").val());
    });
    $("#SupId").on("change",function () {
        $("#Contact_supplierId").val($("#SupId").val());
    });
</script>

@section Scripts {
    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
}

感谢您的支持

解决方法

您可以将此行移动到布局页面。

@await Component.InvokeAsync("NToastNotify")

因此，即使您重定向到另一个页面，通知仍会显示。