返回列表查看 [英] Return List To View

问题描述

每次我遍历视图包时都会出现此错误

Every Time I loop through the viewbag it gives this error

对象"不包含名称"的定义

object' does not contain a definition for 'Name'

这是我的动作

public ActionResult AssignTask() 
{
    var List = db.Employees.Select(x => new 
    { 
        id = x.id, 
        Name = x.Name
    }).ToList();

    ViewBag.Emp_data = List;

    return View();
}

这是我的看法

推荐答案

此代码返回List<anonymous>

var List = db.Employees.Select(x => new 
{ 
    id = x.id, 
    Name = x.Name
}).ToList();

所以这就是为什么您无法在视图的foreach循环中访问Name属性的原因.

so that's why you can't access Name property in the foreach loop in your view.

我建议使用强类型的ViewModel类来保存数据并避免使用ViewBag. ViewModel应该位于Models文件夹中，如下所示

I would suggest using a strongly typed ViewModel class to hold the data and avoiding ViewBag. The ViewModel should be in Models folder and look like below

public class EmployeeViewModel
{
    public int ID { get; set; }
    public string Name { get; set; }
}

按如下所示更改您的控制器

Change your controller as below

public ActionResult AssignTask() 
{
    var model = db.Employees.Select(x => new EmployeeViewModel
    { 
        ID = x.id, 
        Name = x.Name
    }).ToList();

    return View(model);
}

并在您看来

@model List<EmployeeViewModel>

<h2>AssignTask</h2>
<div class="row">
    <div class="form-group">
        <div style="overflow-y:scroll; overflow-x:hidden; height:400px;">
            @foreach (var item in Model)
            {
                <div class="col-lg-4 col-md-4">
                    <label>@item.Name</label>
                    <input type="checkbox" class="checkbox" name="SelectEmp" value="@item.ID" />
                </div>
            }
        </div>
    </div>
</div>

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