c# - 如何将数据传递给 Controller ​​-一对多关系.net core

Question

我想把这些数据保存到数据库

有两个模型。运动员和客户

关系是客户有很多运动员

我想知道如何将客户详细信息与运动员详细信息一起传递

public class Athlete
{
    [Key]
    public string ID { get; set; } = Guid.NewGuid().ToString();
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Email { get; set; }
    public string Description { get; set; }
    public Client Client { get; set; }
}



public class Client
{
    [Key]
    public string ID { get; set; } = Guid.NewGuid().ToString();
    public string CompanyName { get; set; }
    public string ApplicationUserId { get; set; }
    public List<Athlete> Athletes { get; set; }
}

//这是HTML表单

<li>
        <label>First Name</label>
        @Html.TextBoxFor(x => x.FirstName, new { maxlength = 100 })
    </li>
    <li>
        <label>Last Name</label>
        @Html.TextBoxFor(x => x.LastName, new { maxlength = 100 })
    </li>
    <li>
        <label>Email</label>
        @Html.TextBoxFor(x => x.Email, new { maxlength = 100 })
    </li>
    <li>
        <label>Address Line 3</label>
         @Html.TextBoxFor(x => x.AddressLine3, new { maxlength = 100 })
    </li>
</ul>

Answer 1

I want to know how to pass client details with Athlete details

您可以在添加客户端详细信息时使用 javascript 添加多个运动员详细信息，并在 Controller 中更新数据库，如下所示:

模型

public class Client
{
    [Key]
    public string ID { get; set; } = Guid.NewGuid().ToString();
    public string CompanyName { get; set; }
    public string ApplicationUserId { get; set; }
    public List<Athlete> Athletes { get; set; }
}
public class Athlete
{
    [Key]
    public string ID { get; set; } = Guid.NewGuid().ToString();
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Email { get; set; }
    public string Description { get; set; }
    //public Client Client { get; set; }
}

查看

@model WebApplication1.Models.Clients.Client

<div class="row">
  <div class="col-md-4">
    <form asp-action="Create">
        <div asp-validation-summary="ModelOnly" class="text-danger"></div>
        <div class="form-group">
            <label asp-for="CompanyName" class="control-label"></label>
            <input asp-for="CompanyName" class="form-control" />
            <span asp-validation-for="CompanyName" class="text-danger"></span>
        </div>
        <div class="form-group">
            <label asp-for="ApplicationUserId" class="control-label"></label>
            <input asp-for="ApplicationUserId" class="form-control" />
            <span asp-validation-for="ApplicationUserId" class="text-danger"></span>
        </div>

        <div class="form-group">
            <label asp-for="Athletes" class="control-label"></label>
            <table id="tblAthletes" class="table" cellpadding="0" cellspacing="0">
                <thead>
                    <tr>
                        <th style="width:150px">First Name</th>
                        <th style="width:150px">Last Name</th>
                        <th style="width:150px">Email</th>
                        <th style="width:150px">Description</th>
                        <th></th>
                    </tr>
                </thead>
                <tbody id="item-list">
                    <tr>
                        <td><input type="text" asp-for="Athletes" class="items" name="Athletes[0].FirstName" /></td>
                        <td><input type="text" asp-for="Athletes" class="items" name="Athletes[0].LastName" /></td>
                        <td><input type="text" asp-for="Athletes" class="items" name="Athletes[0].Email" /></td>
                        <td><input type="text" asp-for="Athletes" class="items" name="Athletes[0].Description" /></td>
                        <td><input type="button" id="btnAdd" value="Add" /></td>
                    </tr>
                </tbody>
            </table>
        </div>

        <div class="form-group">
            <input type="submit" value="Create" class="btn btn-primary" />
        </div>
    </form>
  </div>
</div>

@section Scripts
{
 <script type="text/javascript">
    $("#btnAdd").click(function (e) {

        e.preventDefault();
        var i = ($(".items").length) / 4;
        var n = '<tr>' + '<td><input type="text" class="items" name="athletes[' + i + '].FirstName" /></td>' +
            '<td><input type="text" class="items" name="athletes[' + i + '].LastName" /></td>' +
            '<td><input type="text" class="items" name="athletes[' + i + '].Email" /></td>' +
            '<td><input type="text" class="items" name="athletes[' + i + '].Description" /></td>' +'</tr>';

        $("#item-list").append(n);

 </script>
}

Controller

[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Create( Client client)
 {
        if (ModelState.IsValid)
        {
            _context.Add(client);
            await _context.SaveChangesAsync();
            return RedirectToAction(nameof(Index));
        }
        return View(client);
  }