MVC5中不同年龄段的数据收集

问题描述

**我曾经尝试收集不同年龄段的数据，但有一个错误，我不知道为什么这是我的控制器代码**

**hi gays I have tried to collect data between ages but there is an error I do not know why here is my code my controller **

 public ActionResult AllCuont()
    {
        var query = (from t in db.Pations
                     let range = (
                                  t.Age >= 0 && t.Age < 10 ? "0-9" :
                                  t.Age >= 11 && t.Age < 15 ? "10-14" :
                                  t.Age >= 15 && t.Age < 50 ? "15-50" :
                                  "50+"
                                  )
                     group t by range into g
                     select new UserRange { AgeRange = g.Key, Count = g.Count() }).ToList();
        //add the sum column.
        query.Add(new UserRange() { AgeRange = "Sum", Count = query.Sum(c => c.Count) });

        ViewBag.UserData = query;
        return View();
    }

这是我收集价值的模型

  namespace Archive.Models
{
    public class UserRange
    {
        public string AgeRange { get; set; }
        public IEnumerable<Pation> Count { get; set; }
    }
}

这是我的观点

<table border="1">

<tr>
    @foreach (var item in ViewBag.UserData)
    {
        <th>@item.AgeRange </th>
    }

</tr>
<tr>
    @foreach (var item in ViewBag.UserData)
    {
        <td>@item.Count </td>
    }
</tr>

我找不到问题，您能帮我吗

我的控制器中的问题在这里在此处输入图像描述

the problem in my controller here enter image description here

推荐答案

jmal hassn

jmal hassn

但是您传递的Count本身就是一个整数

But you are passing Count which is an int by itself

您必须传递一个pations列表，然后您就可以依靠它了

You have to pass a list of pations and than you count on that

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