如何解决在列表中添加表单数据点网核心
我正在尝试将表单数据添加到列表中,并通过控制器将其显示在表格中以查看但无法访问值。我为表单视图学生模型类和 studentrepo 和 istudentrepo 创建了一个索引文件,它返回列表但如何在该列表中添加表单值以便它们呈现。下面是我的代码
private readonly IStudentRepository _studentRepository;
public HomeController(ILogger<HomeController> logger,IStudentRepository studentRepository)
{
_logger = logger;
_studentRepository = studentRepository;
}
public ActionResult Index()
{
return View();
}
public ActionResult StudentDetails()
{
var data = _studentRepository.GetStudents();
return View(data);
}
Student details -
@{
ViewBag.Title = "StudentDetails";
}
@model List<DotNetdemo.Models.Student>
<div>
<table id="tab" class="table">
<thead>
<tr>
<th scope="col">Name</th>
<th scope="col">School</th>
<th scope="col">Address</th>
<th scope="col">Gender</th>
<th scope="col">Standard</th>
</tr>
@foreach(var item in Model)
{
<tr>
<td>@item.name</td>
<td>@item.school</td>
<td>@item.address</td>
<td>@item.gender</td>
<td>@item.standard</td>
</tr>
Index -
@model DotNetdemo.Models.Student
<div class="card">
<form asp-controller="Home" asp-action="StudentDetails" method="post">
<div class="heading">
<h2>REGISTRATION FORM</h2>
</div>
<div class="row mb-3">
<label asp-for="name" class="col-sm-3 col-form-label"></label>
<div class="col-sm-9">
<input asp-for="name" class="form-control"/>
<span style="color:red" id="username"></span>
</div>
</div>
<div class="row mb-3">
<label asp-for="school" class="col-sm-3 col-form-label"></label>
<div class="col-sm-9">
<input asp-for="school" class="form-control" />
</div>
</div>
解决方法
这是一个完整的工作演示,您可以参考:
型号:
public class Student
{
public int Id { get; set; }
public string name { get; set; }
public string school { get; set; }
public string address { get; set; }
public string gender { get; set; }
public string standard { get; set; }
}
Index.cshtml:
@model Student
<div class="row">
<div class="col-md-4">
<form asp-controller="Home" asp-action="StudentDetails" method="post">
<div class="heading">
<h2>REGISTRATION FORM</h2>
</div>
<div asp-validation-summary="ModelOnly" class="text-danger"></div>
<div class="form-group">
<label asp-for="name" class="control-label"></label>
<input asp-for="name" class="form-control" />
<span asp-validation-for="name" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="school" class="control-label"></label>
<input asp-for="school" class="form-control" />
<span asp-validation-for="school" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="address" class="control-label"></label>
<input asp-for="address" class="form-control" />
<span asp-validation-for="address" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="gender" class="control-label"></label>
<input asp-for="gender" class="form-control" />
<span asp-validation-for="gender" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="standard" class="control-label"></label>
<input asp-for="standard" class="form-control" />
<span asp-validation-for="standard" class="text-danger"></span>
</div>
<div class="form-group">
<input type="submit" value="Create" class="btn btn-primary" />
</div>
</form>
</div>
</div>
StudentDetails.cshtml:
@model List<Student>
<div>
<table id="tab" class="table">
<thead>
<tr>
<th scope="col">Name</th>
<th scope="col">School</th>
<th scope="col">Address</th>
<th scope="col">Gender</th>
<th scope="col">Standard</th>
</tr>
@foreach (var item in Model)
{
<tr>
<td>@item.name</td>
<td>@item.school</td>
<td>@item.address</td>
<td>@item.gender</td>
<td>@item.standard</td>
</tr>
}
</thead>
</table>
</div>
回购:
public interface IStudentRepository
{
List<Student> GetStudents();
Task CreateStudent(Student student);
}
public class StudentRepository : IStudentRepository
{
private readonly YourDbcontext _context;
public StudentRepository(YourDbcontext context)
{
_context = context;
}
public async Task CreateStudent(Student student)
{
_context.Add(student);
await _context.SaveChangesAsync();
}
public List<Student> GetStudents()
{
var students = _context.Student.ToList();
return students;
}
}
控制器:
public class HomeController : Controller
{
private readonly ILogger<HomeController> _logger;
private readonly IStudentRepository _studentRepository;
public HomeController(IStudentRepository studentRepository,ILogger<HomeController> logger)
{
_logger = logger;
_studentRepository = studentRepository;
}
public IActionResult Index()
{
return View();
}
public async Task<IActionResult> StudentDetails()
{
var data = _studentRepository.GetStudents();
return View(data);
}
[HttpPost]
public async Task<IActionResult> StudentDetails(Student student)
{
await _studentRepository.CreateStudent(student);
return RedirectToAction(nameof(StudentDetails));
}
}
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