Question

这是我的班级

 public class Student
{
    public int StudentId { get; set; }

    public string Name { get; set; }

    public int DeptId { get; set; }

    public Dept Dept { get; set; }
}

为了显示列表，我使用了ado.net。这是我的控制器：

 public ActionResult Index()
    {
        StudentRepo repo = new StudentRepo();
        List<Student> students = repo.GetStudent().ToList();
        return View(students);
    }

GetStudent方法

public List<Student> GetStudent()
    {
        connection();
        List<Student> stdList = new List<Student>();


        SqlCommand com = new SqlCommand("Sp_GetStudent", con);
        com.CommandType = CommandType.StoredProcedure;
        SqlDataAdapter da = new SqlDataAdapter(com);
        DataTable dt = new DataTable();

        con.Open();
        da.Fill(dt);
        con.Close();

        foreach (DataRow dr in dt.Rows)
        {
            Dept dpt = new Dept();


            dpt.DeptId = Convert.ToInt32(dr["DeptId"]);// here found student Id 
            dpt.Name = Convert.ToString(dr["Name"]);// here found student name 


            stdList.Add(
                new Student
                {
                    StudentId = Convert.ToInt32(dr["StudentId"]),
                    Name = Convert.ToString(dr["Name"]),
                    Roll = Convert.ToString(dr["Roll"]),
                    DeptId = Convert.ToInt32(dr["DeptId"]),
                    Dept = dpt
                }
                );


        }

        return stdList;
    }

剃须刀的观点是：

 @foreach (var item in Model) {
<tr>
    <td>
        @Html.DisplayFor(modelItem => item.Name)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.Roll)
    </td>
    <td>
        @Html.DisplayFor(modelItem => item.Dept.Name)
    </td>
</tr>

}

存储过程：

select StudentTbl.StudentId,StudentTbl.Name,StudentTbl.ROll, StudentTbl.DeptId,DeptTbl.Name
from  Demo.dbo.StudentTbl inner join 
Demo.dbo.DeptTbl ON  StudentTbl.DeptId = DeptTbl.DeptId

目前显示部门ID。现在问题是在列表中我不知道如何显示部门名称。我怎样才能实现这一目标？任何形式的帮助将不胜感激。

编辑：现在，当我在dpt对象中绑定Dept数据时，它会找到StudentTbl Id＆amp;姓名

Answer 1

通常的解决方案是为列名使用别名，使其唯一：

select 
  StudentTbl.StudentId,
  StudentTbl.Name as StudentName,
  StudentTbl.ROll, 
  StudentTbl.DeptId,DeptTbl.Name as DeptName

然后当然更改您的C＃代码以匹配新的别名：

dpt.Name = Convert.ToString(dr["DeptName"]);

和

Name = Convert.ToString(dr["StudentName"])

如何使用Ado.Net在MVC中的剃刀视图中显示外键相关数据

1 个答案: