如何在mvc中将formcollection转换为模型

Question

是否有可能转换formcollection为已知的"模型"？

[HttpPost]
    public ActionResult Settings(FormCollection fc)
    {
    var model=(Student)fc; // Error: Can't convert type 'FormCollection' to 'Student'
    }

注意:由于某些原因,我不能使用ViewModel.

这是我的代码VIEW:Settings.cshtml

@model MediaLibrarySetting
@{
ViewBag.Title = "Library Settings";
var extensions = (IQueryable<MediaLibrarySetting>)(ViewBag.Data);    
}
@helper EntriForm(MediaLibrarySetting cmodel)
{   

<form action='@Url.Action("Settings", "MediaLibrary")' id='MLS-@cmodel.MediaLibrarySettingID' method='post' style='min-width:170px' class="smart-form">
    @Html.HiddenFor(model => cmodel.MediaLibrarySettingID)
    <div class='input'>
        <label>
       New File Extension:@Html.TextBoxFor(model => cmodel.Extention, new { @class = "form-control style-0" })
        </label>
        <small>@Html.ValidationMessageFor(model => cmodel.Extention)</small>
    </div>
    <div>
        <label class='checkbox'>
            @Html.CheckBoxFor(model => cmodel.AllowUpload, new { @class = "style-0" })<i></i>&nbsp;
            <span>Allow Upload.</span></label>
    </div>
    <div class='form-actions'>
        <div class='row'>
            <div class='col col-md-12'>
                <button class='btn btn-primary btn-sm' type='submit'>SUBMIT</button>
            </div>
        </div>
    </div>
</form>
}
<tbody>
@foreach (var item in extensions)
 {
  if (item != null)
   {                                    
    <tr>
     <td>
      <label class="checkbox">
       <input type="checkbox"  value="@item.MediaLibrarySettingID"/><i></i>
        </label>
          </td>
           <td>
             <a href="javascript:void(0);" rel="popover" class="editable-click"
            data-placement="right"
            data-original-title="<i class='fa fa-fw fa-pencil'></i> File Extension"
            data-content="@EntriForm(item).ToString().Replace("\"", "'")" 
            data-html="true">@item.Extention</a></td>
                    </tr>
                    }
                }
                </tbody>

控制器:

[HttpPost]
public ActionResult Settings(FormCollection fc)//MediaLibrarySetting cmodel - Works fine for cmodel
{
        var model =(MediaLibrarySetting)(fc);// Error: Can't convert type 'FormCollection' to 'MediaLibrarySetting'
}

data-content和data-属性是bootstrap popover.

Answer 1

MVC中的另一种方法是使用TryUpdateModel.

示例:TryUpdateModel或UpdateModel将从已发布的表单集合中读取并尝试将其映射到您的类型.我发现这比手动手动映射字段更优雅.

[HttpPost]
public ActionResult Settings()
{
    var model = new Student();

    UpdateModel<Student>(model);

    return View(model);
}

Answer 2

你可以尝试这个方法

   public ActionResult Settings(FormCollection formValues)
   {
     var student= new Student();
     student.Name = formValues["Name"];
     student.Surname = formValues["Surname"];
     student.CellNumber = formValues["CellNumber"];
    return RedirectToAction("Index");
   }