Question

mvc 5很新。

我有一个包含字段和列表的模型。

我希望在我的观点中显示两者。

这是我的模特：

public class AdminChargeHistory
{
    public List<StripeChargeHistory> Charges = new List<StripeChargeHistory>();
    public string ErrorMessage { get; set;] }
}

public class StripeChargeHistory
{
    public int TransactionId { get; set; }
    public string Amount { get; set; }
    public string AmountRefunded { get; set; }
    public string CustomerId { get; set; }
    public Nullable<bool> Paid { get; set; }
    public string Status { get; set; }
    public string ChargeId { get; set; }
    public string InvoiceId { get; set; }
    public string BalanceTransId { get; set; }
    public Nullable<bool> Live { get; set; }
    public Nullable<int> Month { get; set; }
    public Nullable<int> Year { get; set; }
}

我的控制员：

public ActionResult MissedPayments()
{
    var adminChargeHistory = new AdminChargeHistory();
    try
    {
        var stripeRepository = new StripeRepository();               
        var results = stripeRepository.GetMissedPayments(-1, -1, false);
        foreach (var result in results)
        {
            var stripeChargeHistory = new StripeChargeHistory();
            stripeChargeHistory.Amount = result.Amount;
            stripeChargeHistory.AmountRefunded = result.AmountRefunded;
            stripeChargeHistory.BalanceTransId = result.BalanceTransId;
            stripeChargeHistory.ChargeId = result.ChargeId;
            stripeChargeHistory.CustomerId = result.CustomerId;
            stripeChargeHistory.InvoiceId = result.InvoiceId;
            stripeChargeHistory.Live = result.Live;
            stripeChargeHistory.Month = result.Month;
            stripeChargeHistory.Paid = result.Paid;
            stripeChargeHistory.Status = result.Status;
            stripeChargeHistory.TransactionId = result.TransactionId;
            stripeChargeHistory.Year = result.Year;
            adminChargeHistory.Charges.Add(stripeChargeHistory);
        }
    }
    catch (Exception ex)
    {
        adminChargeHistory.ErrorMessage = ex.Message;
    }

    return View(adminChargeHistory);
}

我的观点：

@model InformedProducts.Models.AdminChargeHistory
@{
    ViewBag.Title = "Missed Payments";
}

<h2>Missed Payments</h2>
<table class="grid">
    <tr>
        <th>Customer Id</th>
        <th>Amount</th>
        <th>Month</th>
        <th>Year</th>
    </tr>

    @foreach (var item in Model.StripeChargeHistory)
    {

        <tr>
            <td class="left"><@item.CustomerId></td>
            <td class="left"><@item.Amount></td>
            <td class="left"><@item.Month></td>
            <td class="left"><@item.Year></td>
        </tr>

    @}
    @Html.LabelFor(m=>m.ErrorMessage)
</table>

但错误在这里：

InformedProducts.Models.AdminChargeHistory

在这里？ @ Html.LabelFor（M =＆GT; m.ErrorMessage）

我看不出我做错了什么？

Answer 1

应该是：

@foreach (var item in Model.Charges)
{
    // code removed for brevity...
}

这是因为您的模型AdminChargeHistory具有可枚举的名为Charges的属性。您现在使用的是：Model.StripeChargeHistory无效，因为类AdminChargeHistory中没有此类属性。

此外，您有public string ErrorMessage { get; set;] }，该括号看起来像是一个问题。

Answer 2

模型 - 为Charges和空构造函数添加getter / setter。

public class AdminChargeHistory
{
    public AdminChargeHistory()
    {
        Charges = new List<StripeChargeHistory>();
    }

    public ICollection<StripeChargeHistory> Charges { get; set; }
    public string ErrorMessage { get; set; }
}

控制器 - 利用LINQ

public ActionResult MissedPayments()
{
    var adminChargeHistory = new AdminChargeHistory();
    try
    {
        var stripeRepository = new StripeRepository();
        var results = stripeRepository.GetMissedPayments(-1, -1, false);

        adminChargeHistory.Charges = results.Select(result => new StripeChargeHistory
        {
            Amount = result.Amount,
            CustomerId = result.CustomerId,
            Month = result.Month,
            Year = result.Year
        }).ToList();
    }
    catch (Exception ex)
    {
        adminChargeHistory.ErrorMessage = ex.Message;
    }

    return View(adminChargeHistory);
}

查看 - 参考费用集合属性

@model InformedProducts.Models.AdminChargeHistory
@{
    ViewBag.Title = "Missed Payments";
}

<h2>Missed Payments</h2>
<table class="grid">
    <tr>
        <th>Customer Id</th>
        <th>Amount</th>
        <th>Month</th>
        <th>Year</th>
    </tr>

    @foreach (var item in Model.Charges)
    {

        <tr>
            <td class="left"><@item.CustomerId></td>
            <td class="left"><@item.Amount></td>
            <td class="left"><@item.Month></td>
            <td class="left"><@item.Year></td>
        </tr>

    @}
    @Html.LabelFor(m=>m.ErrorMessage)
</table>

如果你在@model InformedProducts.Models.AdminChargeHistory下有红色波浪形，你可能有错误的命名空间。删除InformedProducts.Models.并将光标放在AdminChargeHistory上并点击ctrl +。（句号），它应该找到正确的命名空间。

如何使用Razor显示列表和字段

2 个答案: