渲染部分没有被渲染.net mvc

本文关键字：net mvc 染部 | 更新日期: 2023-09-27 18:05:49

我在渲染局部时遇到了一个问题。我看了一下，发现你应该把路径传递给局部视图作为第一个参数，你的模型传递给第二个参数，如果你使用一个，因为它是重载之一。我得到了页面，没有任何问题，但是部分视图没有输出我预期的结果，而且我不能在该部分上碰到断点(它使用了循环)。我已经确认给它传递了一个有数据的模型，但部分似乎没有被击中。这是我的控制器和偏导数。

    DataBass db = new DataBass();
    public ActionResult Address()
    {
        Models.ViewModels.CheckoutViewModel x = new Models.ViewModels.CheckoutViewModel();
        if (User.Identity.IsAuthenticated)
        {
            using(DataBass oDB = new DataBass())
            {
                var Customer = oDB.Customers.First(c => c.Email.ToLower() == User.Identity.Name.ToLower());
                var AvailableAddresses = oDB.AddressBooks.Where(ab => ab.CustomerID == Customer.ID).ToList();
                x.CustomerID = Customer.ID;
                x.HasExistingAddresses = (AvailableAddresses.Count > 0 ? false : true);
                x.AvailableAddresses = AvailableAddresses;

            }
            //var UserAddresses = db.AddressBooks.Where(a => a.Customer.Email == User.Identity.Name);
            //ViewBag.Addresses = UserAddresses;
            return View("Shipping", x);
        }                
        else
            return View("Index");
    }

这是我遇到麻烦的部分视图。这是不会被击中的。

@model IEnumerable<Models.AddressBook>
<h2>AddressBook</h2>
<table class="table">
    <tr>
        <th>
            Address 2
        </th>
        <th>
           Address 1
        </th>
        <th>
            City
        </th>
        <th>
            State
        </th>
        <th>
            Postal Code
        </th>
        <th></th>
    </tr>
    @foreach (var item in Model)
    {
        var states = (List<Models.State>)ViewBag.States;
        <tr>
            <td>
                @Html.DisplayFor(modelItem => item.Address1)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Address2)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.City)
            </td>
            <td>
                @states.FirstOrDefault(x => x.ID.ToString() == item.StateID).Name
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Zipcode)
            </td>
            <td>
                @Html.ActionLink("Choose this one","", new { id = item.ID}, new { @class="button"})
                @*@Html.ActionLink("Edit", "EditAddress", new { id = item.ID }, null) |
                @Html.ActionLink("Delete", "DeleteAddress", new { id = item.ID }, null)
                @*<a href="/Account/EditAddress/@item.AddressBook_ID">Edit</a> |
                    <a href="/Account/DeleteAddress/@item.AddressBook_ID">Delete</a>
                @Html.ActionLink("Edit", "EditAddress", new { id = item.ID }, null) |
                @Html.ActionLink("Edit", "EditAddress", "Account",new { id=item.AddressBook_ID }, htmlAttributes: null ) |
                @Html.ActionLink("Delete", "DeleteAddress", new { id = item.ID }, null)*@
            </td>
        </tr>
    }
</table>

这是我的视图它调用renderpartial方法到ChooseExistingAddress。CSHTML部分如上所示。

@model Models.ViewModels.CheckoutViewModel
@{
    ViewBag.Title = "Shipping Selection";
    Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>Shipping</h2>
@if (Model.HasExistingAddresses)
{
    Html.RenderPartial("~/Views/Checkout/ChooseExistingAddress.cshtml", Model.AvailableAddresses);
}
else
{
    Html.RenderPartial("~/Views/Checkout/AddNewShippingAddress.cshtml");
}

渲染部分没有被渲染.net mvc

你把你的三元逻辑弄反了:

x.HasExistingAddresses = (AvailableAddresses.Count > 0 ? false : true);

换句话说，如果count of addresses大于0，你将其设置为false，而在这种情况下，它应该是true。反正这里不需要三元制。只需将其设置为布尔表达式的结果:

x.HasExistingAddresses = AvailableAddresses.Count > 0;
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