尝试从视图访问模型到控制器编辑方法

Question

我有一个使用 ViewModel 的视图。视图的一部分需要是编辑表单。这就是我正在做的

ViewModel class:

public class BatteryViewModel
    {
        public string BatteryName { get; set; }
        public int AssetId { get; set; }
        public string LocalAssetNumber { get; set; }

        public string Type { get; set; }
        public string Make { get; set; }
        public string Model { get; set; }
        public string SerielNumber { get; set; }

        public string Capacity { get; set; }
        public string VoltageRange { get; set; }
        public string StateOfCharge { get; set; }
        public string Temp { get; set; }
        public string Voltage { get; set; }
        public string Power { get; set; }

        public int faultStatus { get; set; }
        public List<string[]> batteryAlarms { get; set; }
        public string LastUpdate { get; set; }
    }

控制器方法：

[System.Web.Http.HttpPost]
        [ActionName("EditMicrogridBatteryDetails")]
        public ActionResult EditMicrogridBatteryDetails(BatteryViewModel model)
        {

            try {
                var batteryDetails = obj.table.Where(x => x.Id == model.Id).SingleOrDefault();
                if (batteryDetails != null) {
                    batteryDetails.LocalAssetNumber = model.LocalAssetNumber;
                    batteryDetails.Make = model.Make;
                    batteryDetails.Model = model.Model;
                    batteryDetails.BatteryType = model.Type;
                    batteryDetails.SerialNumber = model.SerielNumber;
                    batteryDetails.BatteryCapacityKWH = model.Capacity;
                    batteryDetails.BatteryVoltageRange = model.VoltageRange;

                    ........

                }
            } catch (Exception ee) {
                .....
            }

            return RedirectToAction("BatteryOverView", "Battery", new { id = model.Id });
        }

我的视图调用了具有我要提交的表单的部分视图：

`

@using ELMFieldSight.Models;
@model BatteryViewModel

@using (Html.BeginForm("EditMicrogridBatteryDetails", "microgridBattery", FormMethod.Post))
{
    @Html.HiddenFor(model => model.AssetId)
    <div class="row table-responsive" style="overflow:auto;">
        <table class="table table-bordered ">
            <tbody>
                <tr style="background-color:#ecf0f1;">
                    <th><h4 style="font-weight:800;">LocalAssetNumber</h4></th>
                    <th><h4 style="font-weight:800;">Type</h4></th>
                    <th><h4 style="font-weight:800;"> Make </h4></th>
                    <th><h4 style="font-weight:800;">Model</h4></th>
                    <th><h4 style="font-weight:800;"> SerialNumber </h4></th>
                    <th><h4 style="font-weight:800;"> Capacity </h4></th>
                    <th><h4 style="font-weight:800;"> Voltage Range </h4></th>
                </tr>
                <tr>
                    <td><h4>@Html.EditorFor(m => m.LocalAssetNumber)</h4></td>
                    <td><h4>@Html.EditorFor(m => m.Type)</h4></td>
                    <td><h4>@Html.EditorFor(m => m.Make) </h4></td>
                    <td><h4>@Html.EditorFor(m => m.Model) </h4></td>
                    <td><h4>@Html.EditorFor(m => m.SerielNumber) </h4></td>
                    <td><h4>@Html.EditorFor(m => m.Capacity) </h4></td>
                    <td><h4>@Html.EditorFor(m => m.VoltageRange)</h4></td>
                </tr>
            </tbody>
        </table>
    </div>
    <div>
        <button class="btn btn-primary" type="submit" value="Save">Save</button>
    </div>
}

主视图是这样的：

@using ELMFieldSight.Models;
@model BatteryViewModel
@{
    ViewBag.Title = "MicrogridBatteryOverView";
}
                    <div class="ibox-content">

                    <div class="row" style="padding-left:1%; padding-right:1%">

                        <div class="col-lg-12">
                            @if (this.User.IsInRole("Super Admin"))
                            {
                                Html.RenderPartial("MicrogridBatterySignaturePartialView");
                                //Html.RenderPartial("_testpartial");
                            }
                            else
                            {
                                <div class="row table-responsive" style="overflow:auto;">
                                    <table class="table table-bordered ">
                                        <tbody>
                                            <tr style="background-color:#ecf0f1;">
                                                <th><h4 style="font-weight:800;">LocalAssetNumber</h4></th>
                                                <th><h4 style="font-weight:800;">Type</h4></th>
                                                <th><h4 style="font-weight:800;"> Make </h4></th>
                                                <th><h4 style="font-weight:800;">Model</h4></th>
                                                <th><h4 style="font-weight:800;"> SerialNumber </h4></th>
                                                <th><h4 style="font-weight:800;"> Capacity </h4></th>
                                                <th><h4 style="font-weight:800;"> Voltage Range </h4></th>
                                            </tr>
                                            <tr>
                                                <td><h4>@Model.LocalAssetNumber</h4></td>
                                                <td><h4>@Model.Type</h4></td>
                                                <td><h4>@Model.Make</h4></td>
                                                <td><h4>@Model.Model</h4></td>
                                                <td><h4>@Model.SerielNumber</h4></td>
                                                <td><h4>@Model.Capacity</h4></td>
                                                <td><h4>@Model.VoltageRange</h4></td>
                                            </tr>
                                        </tbody>
                                    </table>
                                </div>
                            }

                        </div>
                    </div>
                </div>

模型中的所有内容都显示正确无误，但是当我尝试提交此表单时，控制器中的模型为 NULL。为什么会这样？？

Answer 1

好的，所以我知道出了什么问题。基本上，方法签名——在我的例子中是控制器方法：

public ActionResult EditMicrogridBatteryDetails（BatteryViewModel 模型）

不能有变量 BatteryViewModel 类型变量名称 'model'，因为 BatteryViewModel class 有一个名为 Model 的属性（不区分大小写）。

我将 EditMicrogridBatteryDetails(BatteryViewModel model) 更改为 EditMicrogridBatteryDetails(BatteryViewModel model1) 及其工作。

谢谢！！

尝试从视图访问模型到控制器编辑方法

Trying to access Model from view to controller edit method

asp.net

model-view-controller

view

viewmodel