将显示的 ViewModel 数据与文本框数据一起传递到控制器 asp.net mvc 3

Question

ViewModel 类

public class CreateMRViewModel
{
    public Decimal? Freight { get; set; }
    public IList<OrderLine> OrderLines { get; set; }
}

public class OrderLine
{
    public string LineNumber { get; set; }
    public string VendorPartNumber { get; set; }
    public long? Quantity { get; set; }
    public string UOM { get; set; }
    public decimal PricePerUom { get; set; }
    public long? ReturnQuantity { get; set; }
    public long? QuantityAvaiToReturn { get; set; }
}

我的视图

@model CreateMRViewModel
@using (Html.BeginForm()) {
<fieldset>
    <table>
        <tr>
            <th>Line Number</th>
            <th>Part Number</th>
            <th>UOM</th>
            <th>PricePerUom</th>
            <th>Available Qty</th>
            <th>Return Qty</th>
        </tr>
        @for (int i = 0; i < Model.OrderLines.Count; i++)
        {
        <tr>
            <td>@Html.DisplayFor(modelItem => Model.OrderLines[i].LineNumber)</td>
            <td>@Html.DisplayFor(modelItem => Model.OrderLines[i].VendorPartNumber)</td>
            <td>@Html.DisplayFor(modelItem => Model.OrderLines[i].UOM)</td>
            <td>@Html.DisplayFor(modelItem => Model.OrderLines[i].PricePerUom)</td>
            <td>@Html.DisplayFor(modelItem => Model.OrderLines[i].Quantity)</td>
            <td>@Html.TextBoxFor(modelItem => Model.OrderLines[i].ReturnQuantity)</td>
        </tr>
        }
    </table>
    <br />
    <div class="display-label">@Html.LabelFor(model => Model.Freight)</div>
    <div class="display-field">@Html.TextBox("Freight", new Int64())</div>
    <br />
    <br />
    <input class="submitForm" type="submit" value="Create Return" />
</fieldset>
}

操作控制器

[HttpPost]
public ActionResult CreateMR(CreateMRViewModel mrViewModel)
{
    //some code here
}

我的问题是：我将 CreateMRViewModel 获取到控制器，但只有文本框值可供我使用。如何获取显示的值（例如 LineNumber 或 VendorPartNumber）以在控制器方法中使用？

Answer 1

您实际上并没有发布这些 Properties 的任何值，因为您正在使用 DisplayFor()

如果您只想将其传递给 [HttpPost] 方法，您将需要用隐藏输入来表示它或使其可编辑。

<td>
    @Html.DisplayFor(modelItem => Model.OrderLines[i].VendorPartNumber)
    @Html.HiddenFor(modelItem => Model.OrderLines[i].VendorPartNumber)
</td>