将参数传递给Html.ActionLink

本文关键字：ActionLink Html 参数传递 | 更新日期: 2023-09-27 17:58:11

我正试图将一个参数传递给Index视图中的Create@Html.ActionLink，但遇到了一些困难。

我有一个地址控制器，用户在访问"索引"视图时可以在其中看到特定人员的地址。我想把这个PersonID传递给Create视图，这样他们在创建新地址时就不必选择或输入这个人。我的操作链接看起来像这样-

@Html.ActionLink("Create New", "Create", new { id = Model.[PersonID is not a choice]})

我的问题是，在模型之后，PersonID不是一个选项。我不知道如何在AddressController中为Create函数获取PersonID。

当模型是IEnumerable<T>-他们有同样的问题。第一个答案似乎是一个可能的解决方案，但我无法复制他们创建的模型，当我把这些片段放在地址模型中时，我也无法复制他们在控制器中执行的代码。还有其他解决方案吗？

我的地址模型-

public partial class Address
{
    public int AddressID { get; set; }
    public int PersonID { get; set; }
    [Display(Name="Address")]
    public string Address1 { get; set; }
    [Display(Name = "Address 2")]
    public string Address2 { get; set; }
    public string City { get; set; }
    [Display(Name="State")]
    public string StateAbbr { get; set; }
    [Display(Name = "Zip Code")]
    public string Zip { get; set; }
    public virtual Person Person { get; set; }
    public List<Address> Address { get; set; }
}

我的AddressController索引

 public ActionResult Index(int id)
    {
        var addresses = db.Addresses.Include(a => a.Person)
            .Where(a => a.PersonID == id);
        Person person = db.People.Find(id);
        ViewBag.FullName = person.FirstName + " " + person.LastName;
        person.PersonID = id;
        return View(addresses.ToList());
    }

地址索引视图-

@model IEnumerable<OpenBurn.Models.Address>
@{
    ViewBag.Title = "Address";
}
<h2>Address</h2>
<p>
    @Html.ActionLink("Create New", "Create", new { id = .PerosnID })
</p>
<h3 style="color: #008cba;"> @ViewBag.FullName </h3>
<table class="table">
<tr>
    <th>
        @Html.DisplayNameFor(model => model.Address1)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.Address2)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.City)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.StateAbbr)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.Zip)
    </th>
    <th></th>
</tr>
@foreach (var item in Model) {
<tr>
    <td>
        @Html.DisplayFor(modelItem => item.Address1)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.Address2)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.City)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.StateAbbr)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.Zip)
    </td>
    <td>
        @Html.ActionLink("Edit", "Edit", new { id=item.AddressID }) |
        @Html.ActionLink("Details", "Details", new { id=item.AddressID }) |
        @Html.ActionLink("Delete", "Delete", new { id=item.AddressID })
    </td>
</tr>
}
</table>

将参数传递给Html.ActionLink

由于@Html.ActionLink语法不在foreach循环中，因此显然不能使用IEnumerable<OpenBurn.Models.Address>作为模型。您需要一个新的模型类，该类包含一个保存这些Address记录的属性和一个保存PersonID值的属性。您还应该使用相同的模型类来传递FullName值，而不是使用ViewBag。我建议使用以下型号的

public class AddressIndexModel
{
    public AddressIndexModel()
    {
        this.Addresses = new List<Address>();
    }
    public int PersonID { get; set; }
    public string FullName { get; set; }
    public List<Address> Addresses { get; set; }
}

然后把你的控制器换成这个

public ActionResult Index(int id)
{
    var addresses = db.Addresses.Include(a => a.Person)
        .Where(a => a.PersonID == id);
    Person person = db.People.Find(id);
    AddressIndexModel model = new AddressIndexModel();
    model.PersonID = id;
    model.FullName = person.FirstName + " " + person.LastName;
    model.Addresses = addresses.ToList();
    return View(model);
}

并将您的视图更改为低于

@model AddressIndexModel
@{
    ViewBag.Title = "Address";
}
<h2>Address</h2>
<p>
    @Html.ActionLink("Create New", "Create", new { id = Model.PersonID })
</p>
<h3 style="color: #008cba;"> @Model.FullName </h3>
<table class="table">
<tr>
    <th>
        Address
    </th>
    <th>
        Address 2
    </th>
    <th>
        City
    </th>
    <th>
        State
    </th>
    <th>
        Zip Code
    </th>
    <th></th>
</tr>
@foreach (var item in Model.Addresses) {
<tr>
    <td>
        @Html.DisplayFor(modelItem => item.Address1)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.Address2)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.City)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.StateAbbr)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.Zip)
    </td>
    <td>
        @Html.ActionLink("Edit", "Edit", new { id=item.AddressID }) |
        @Html.ActionLink("Details", "Details", new { id=item.AddressID }) |
        @Html.ActionLink("Delete", "Delete", new { id=item.AddressID })
    </td>
</tr>
}
</table>
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