Question

需要使用createView中的选定复选框创建编辑视图

public class CustomerTypeViewModel
{
    [Required]
    public int? Id { get; set; }
    public string Description { get; set; }
    [Display(Name = "Please select the Type")]
    public bool Selected { get; set; }
}

CustomerView，何时应加载CustomerTypeViewModel列表

public List<CustomerTypeViewModel> SelectedCustomerTypes { get; set; }
private List<CustomerTypeViewModel> selectionList = new List<CustomerTypeViewModel>();
public CustomerViewModel()
{
    SelectedCustomerTypes = new List<CustomerTypeViewModel>();
}

public void SetCustomerTypeViewModel(IEnumerable<CustomerTypeViewModel> selected, IEnumerable<CustomerTypeViewModel> all)
{
    SelectedCustomerTypes.Clear();
    foreach (var item in all)
    {
        SelectedCustomerTypes.Add(item);
    }
    foreach (var item in selected)
    {
        SelectedCustomerTypes.FirstOrDefault(x => x.Description == item.Description).Selected = true;
    }
}

public List<CustomerTypeViewModel> GetTipi()
{
    return selectionList;
}

在控制器中，我应该调用一个从经理那里获取客户类型的方法

public CustomerTypeViewModel GetCustomerType(int? customerId)
{
    var query = "SELECT * FROM CustomerType where Id = @Id";
    return context.GetObject<CustomerTypeViewModel>(query, new { Id = customerId });
}

现在在控制器上进行编辑

[AuthorizeRoles(RoleNames.CanEditCustomer)]
public ActionResult Edit(int? id, int? customerId)
{
    if (id == null)
    {
        return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
    }

    var customer = customerManager.Get(customerId);
    var vm = new CustomerViewModel();
    vm.SetCustomerTypeViewModel(new List<CustomerTypeViewModel>(), customerTypeManager.GetAll());
    if (customer == null)
    {
        return HttpNotFound();
    }
    return View(customer);
}

有人告诉我在管理器GetCustomerType（customerId）中创建一个方法 <-这是db表中的ID，其中保存了复选框，此方法将加载CustomerTypeViewModel的列表

现在编辑视图

<div class="form-group">
    @{
        for (int i = 0; i < Model.SelectedCustomerTypes.Count(); i++)
        {
            <div class="col-md-10">
                @Html.Label(Model.SelectedCustomerTypes[i].Description, new { @class = "control-label col-md-2" })
                @Html.CheckBoxFor(model => model.SelectedCustomerTypes[i].Selected, new { @checked = "checked" })
                @Html.HiddenFor(model => model.SelectedCustomerTypes[i].Id, new { data_val = false })
                @Html.HiddenFor(model => model.SelectedCustomerTypes[i].Description, new { data_val = false })
            </div>
        }
    }
</div>

Answer 1

您需要在控制器中修复GetCustomerType方法。试试这个：

public IActionResult GetCostumerType(int? id)
{

   if (id == null)
   {
      return NotFound();
   }

   var test = from custom in _yourContext.CustomerType                   
              .Where(p => p.CustomerType.Id == customerId)
              select custom;
              //change _yourContext with your context variable                  

   if (test == null)
   {
     return NotFound();
   }

   return View(test);
}

这样，您将获得与方法中传递的ID相关联的自定义类型。

如何创建从存储在数据库中的列表中获取复选框的编辑视图？

1 个答案: