使用兩個獨立模型在ASP.NET上創建表單

我使用的是Visual Studio 2017，其中包含最新更新的所有內容。我想輸入一些正常的文本框回答問題以及複選框答案問題，並將所有答案記錄在同一個數據庫中。我的問題的一部分是如何獲得兩個單獨的模型，使用單獨的數據庫將單獨的數據庫作爲單個控制器的參考，以及一個數據庫記錄中所有問題答案的列表的視圖？也許我正在以這種錯誤的方式進行討論，因爲我對ASP.NET很陌生，所以這很有可能。任何輸入到這個問題，將不勝感激......使用兩個獨立模型在ASP.NET上創建表單

下面是我的兩個型號代碼：

型號I：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Threading.Tasks; 
using Microsoft.EntityFrameworkCore; 

namespace TessituraForm 
{ 
    public class TessituraFormContext : DbContext 
    { 
     public TessituraFormContext(DbContextOptions<TessituraFormContext> options) : base(options) 
     { 

     } 
     public DbSet<Models.Roles> Roles { get; set; } 
    } 
}

模式二：

using System; 
using System.ComponentModel.DataAnnotations; 
using Microsoft.EntityFrameworkCore; 

namespace TessituraForm.Models 
{ 
    public class Applicant 
    { 
     public int ID { get; set; } 

     [Display(Name = "Full Name:")] 
     [DataType(DataType.Text)] 
     [Required] 
     public string FullName { get; set; } 

     [Display(Name = "SI User Name:")] 
     [StringLength(10)] 
     [DataType(DataType.Text)] 
     [Required] 
     public string SIUserName { get; set; } 

     [Display(Name = "Supervisor:")] 
     [Required] 
     public string Supervisor { get; set; } 

     [Display(Name = "Badge Number:")] 
     [StringLength(8)] 
     [DataType(DataType.Text)] 
     [Required] 
     public string BadgeNumber { get; set; } 

     [Display(Name = "Badge Expiration Date:")] 
     [DataType(DataType.Date)] 
     [DisplayFormat(DataFormatString = "{0:MM-dd-yyyy}", ApplyFormatInEditMode = true)] 
     [Required] 
     public DateTime BadgeExpirationDate { get; set; } 


     [Display(Name = "Applicant is a(n):")] 
     [DataType(DataType.Text)] 
     [Required] 
     public string ApplicantIsAn { get; set; } 

    } 
    public class Roles 
    { 
     [Key] 
     public int ID { get; set; } 
     public string AdvancementFundraising { get; set; } 
     public string CustomerService { get; set; } 
     public string DiscoveryTheater { get; set; } 
     public string BusinessOffice { get; set; } 
     public string CustomerServiceSupport { get; set; } 
     public string ExecutiveStaff { get; set; } 
     public string Marketing { get; set; } 
     public string Programming { get; set; } 
     public string VolunteerCoordinator { get; set; } 

     public bool CheckboxAnswer { get; set; } 
    } 
}

控制器代碼：

using Microsoft.AspNetCore.Mvc; 
using Microsoft.EntityFrameworkCore; 
using System.Linq; 
using System.Threading.Tasks; 
using TessituraForm.Models; 

namespace Applicant.Controllers 
{ 
    public class ApplicantController : Controller 
    { 
     private readonly TessituraFormContext _context; 

     public ApplicantController(TessituraFormContext context) 
     { 
      _context = context;  
     } 

     // GET: Applicants 
     public async Task<IActionResult> Index() 
     { 
      return View(await _context.Applicant.ToListAsync()); 
     } 

     // GET: Applicants/Details/5 
     public async Task<IActionResult> Details(int? id) 
     { 
      if (id == null) 
      { 
       return NotFound(); 
      } 

      var applicant = await _context.Applicant 
       .SingleOrDefaultAsync(m => m.ID == id); 
      if (applicant == null) 
      { 
       return NotFound(); 
      } 

      return View(applicant); 
     } 

     // GET: Applicants/Create 
     public IActionResult Create() 
     { 
      return View(); 
     } 

     // POST: Applicants/Create 
     // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
     // more details see http://go.microsoft.com/fwlink/?LinkId=317598. 
     [HttpPost] 
     [ValidateAntiForgeryToken] 
     public async Task<IActionResult> Create([Bind("ID,FullName,SIUserName,Supervisor,BadgeNumber,BadgeExpirationDate,ApplicantIsAn,Roles")] Applicant applicant) 
     { 
      if (ModelState.IsValid) 
      { 
       _context.Add(applicant); 
       await _context.SaveChangesAsync(); 
       return RedirectToAction("Index"); 
      } 
      return View(applicant); 
     } 

     // GET: Applicants/Edit/5 
     public async Task<IActionResult> Edit(int? id) 
     { 
      if (id == null) 
      { 
       return NotFound(); 
      } 

      var applicant = await _context.Applicant.SingleOrDefaultAsync(m => m.ID == id); 
      if (applicant == null) 
      { 
       return NotFound(); 
      } 
      return View(applicant); 
     } 

     // POST: Applicants/Edit/5 
     [HttpPost] 
     [ValidateAntiForgeryToken] 
     public async Task<IActionResult> Edit(int id, [Bind("ID,FullName,SIUserName,Supervisor,BadgeNumber,BadgeExpirationDate,ApplicantIsAn,Roles")] Applicant applicant) 
     { 
      if (id != applicant.ID) 
      { 
       return NotFound(); 
      } 

      if (ModelState.IsValid) 
      { 
       try 
       { 
        _context.Update(applicant); 
        await _context.SaveChangesAsync(); 
       } 
       catch (DbUpdateConcurrencyException) 
       { 
        if (!ApplicantExists(applicant.ID)) 
        { 
         return NotFound(); 
        } 
        else 
        { 
         throw; 
        } 
       } 
       return RedirectToAction("Index"); 
      } 
      return View(applicant); 
     } 

     // GET: Applicants/Delete/5 
     public async Task<IActionResult> Delete(int? id) 
     { 
      if (id == null) 
      { 
       return NotFound(); 
      } 

      var applicant = await _context.Applicant 
       .SingleOrDefaultAsync(m => m.ID == id); 
      if (applicant == null) 
      { 
       return NotFound(); 
      } 

      return View(applicant); 
     } 

     // POST: Applicants/Delete/5 
     [HttpPost, ActionName("Delete")] 
     [ValidateAntiForgeryToken] 
     public async Task<IActionResult> DeleteConfirmed(int id) 
     { 
      var applicant = await _context.Applicant.SingleOrDefaultAsync(m => m.ID == id); 
      _context.Applicant.Remove(applicant); 
      await _context.SaveChangesAsync(); 
      return RedirectToAction("Index"); 
     } 

     private bool ApplicantExists(int id) 
     { 
      return _context.Applicant.Any(e => e.ID == id); 
     } 
    } 
} 
namespace DatabaseContext.Controllers 
{ 
    public class DatabaseContextController : Controller 
    { 
     public ActionResult Index() 
     { 
      return View(); 
     } 
     public ActionResult Roles() 
     { 
      Applicant objApplicant = newApplicant(); 
     } 
    } 
}

並查看指數代碼：

@model IEnumerable<TessituraForm.Models.Applicant> 

@{ 
    ViewData["Title"] = "Index"; 
} 
<style> 
    body { 
     background-color: lightgray; 
    } 

    h2 { 
     color: black; 
     margin-left: 5px; 
    } 
</style> 

<img src="~/Images/TSA.jpg" alt="TSA" style="position:absolute;left:1372px;top:57px;width:150px;height:75px;" /> 

<h2>Index</h2> 

<p> 
    <a asp-action="Create" style="margin-left:20px;">Create New</a> 
</p> 
<table class="table" border="1"> 
    <thead> 
     <tr> 
       <th> 
        @Html.DisplayNameFor(model => model.FullName) 
       </th> 
       <th> 
        @Html.DisplayNameFor(model => model.SIUserName) 
       </th> 
       <th> 
        @Html.DisplayNameFor(model => model.Supervisor) 
       </th> 
       <th> 
        @Html.DisplayNameFor(model => model.BadgeNumber) 
       </th> 
       <th> 
        @Html.DisplayNameFor(model => model.BadgeExpirationDate) 
       </th> 
       <th> 
        @Html.DisplayNameFor(model => model.ApplicantIsAn) 
       </th> 
       <th> 
        @Html.DisplayNameFor(model => model.Roles) 
       </th> 
      <th></th> 
     </tr> 
    </thead> 
    <tbody> 
@foreach (var item in Model) { 
     <tr> 
      <td> 
       @Html.DisplayFor(modelItem => item.FullName) 
      </td> 
      <td> 
       @Html.DisplayFor(modelItem => item.SIUserName) 
      </td> 
      <td> 
       @Html.DisplayFor(modelItem => item.Supervisor) 
      </td> 
      <td> 
       @Html.DisplayFor(modelItem => item.BadgeNumber) 
      </td> 
      <td> 
       @Html.DisplayFor(modelItem => item.BadgeExpirationDate) 
      </td> 
      <td> 
       @Html.DisplayFor(modelItem => item.ApplicantIsAn) 
      </td> 
      <td> 
       @Html.DisplayFor(modelItem => item.Roles) 
      </td> 
      <td> 
       <a asp-action="Edit" asp-route-id="@item.ID">Edit</a> | 
       <a asp-action="Details" asp-route-id="@item.ID">Details</a> | 
       <a asp-action="Delete" asp-route-id="@item.ID">Delete</a> 
      </td> 
     </tr> 
} 
    </tbody> 
</table>

同樣，我的目標很簡單，就是有網頁與普通文本框答案和一個複選框部分相當的部分，以及在一種形式。任何幫助深表感謝。

來源

2017-06-12 A. B.

您可以將模型1和模型2組合成一個模型3，作爲有效載荷交付到前端。或者您可以執行單獨的控制器調用或ajax調用來獲取模型1，因爲它似乎試圖從數據庫中獲取數據。如果它是一個單獨的控制器調用，那麼它將與其自己的觀點相關聯。 –

如果你想將兩個不同的模型合併成一個，那麼你可以使用viewmodel的概念：//tutlane.com/tutorial/aspnet-mvc/how-to-use-viewmodel-in-asp-net-mvc-例如 –

你可以做的是創建一個新的Model，然後將其他兩個在一個象下面這樣：

public class YourNewModel 
{ 
    public Applicant Applicant {get;set;} //note you can declare it here as a List or any how you want 
    public Roles Roles {get;set;} 
}

注意這只是給你一個想法，並開始你的，這也意味着改變你的Controller方法。您還必須將此Model傳遞給您的視圖，這樣您可以將兩個模型放在同一個位置，就像您想要的一樣。

我希望這可以幫助

來源

2017-06-13 08:03:07 jamiedanq

我想我已經正確地完成了這一步，現在只是在更換控制器時遇到了麻煩。有什麼建議來解決這個問題？我認爲使這個實例如此複雜以找到解決方案的部分原因是我正在使用普通的文本框問題以及複選框問題。 –

使用文本框和複選框問題不應該是一個問題，只要你知道你想實現什麼 – jamiedanq

使用兩個獨立模型在ASP.NET上創建表單

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