如何通过DataReader/DataTable进行查看？

Question

我是MVC的新手并尝试编写一个简单的MVC 3应用程序,该应用程序在模型中的类中读取客户数据并使用控制器将其返回到视图.Reader显示它有行但是当加载到表并传递给视图作为模型时,它为null.我需要一个简单的解决方案来传递DataTable视图或DataReader查看我可以转换到的位置DataTable.

这是代码:

namespace MvcApplication3.Models
{
    public class Customer
    {
        public DataTable GetCustomers(OdbcDataReader rds)
        {
            String ConString = "DSN=Northwind;Uid=;Pwd=;";
            String SQL = "SELECT * FROM CUSTOMERS";
            DataTable tbl = new DataTable();

            using (OdbcConnection con = new OdbcConnection(ConString))
            {
                con.Open();
                OdbcCommand cmd = new OdbcCommand(SQL, con);
                rds = cmd.ExecuteReader();
            }
        }

    }
}

namespace MvcApplication3.Controllers
{
    public class DefaultController : Controller
    {
        //
        // GET: /Default1/

        public ActionResult Index()
        {
            Customer cs = new Customer();
            OdbcDataReader rd = new OdbcDataReader();
            cs.GetCustomers(rd);

            DataTable tb = new DataTable();
            tb.Load(rd);
            return View(tb);
        }
    }
}

Answer 1

对于控制器：

 public ActionResult Index()
        {
            DataTable dt = GetData();

            return View(dt);
        }

然后在视图中：

@model System.Data.DataTable
@using System.Data;

…………………………

 <table class="table table-hover">
                        <thead>
                            <tr>
                                @foreach (DataColumn col in Model.Columns)
                                {
                                    <th>@col.ColumnName</th>
                                }
                            </tr>
                        </thead>
                        <tbody>
                            @foreach (DataRow row in Model.Rows)
                            {
                                <tr>
                                    @foreach (DataColumn col in Model.Columns)
                                    {
                                        <td>@row[col.ColumnName]</td>
                                    }
                                </tr>
                            }
                        </tbody>
                    </table>

Answer 2

mvc中的视图总是与强类型模型相关联,所以在你的情况下.所以你需要创建一个带有list的类.在获取数据时,将数据插入到列表中并将该类传递给视图.

class A {
    public string name{get;set;}
    public int age{get;set;}
}

//code when fetching data
//this list should be in the class where you fetch the data
Public list<A> list=new list<A>();
while(datareader.read)
{
    A Aobj=new A();
    String name=reader['name'].tostring();
    int age =Convert.ToInt(reader['age']);
    A.name=name;
    A.age=age;
    list.add(A);
}//end of while loop

//action resut
public ViewResult yourview(){
    Return View(list);
}

//now you can access the data from the view.              
By....
@model IEnumerable<A>
//here A is your class name
@foreach(var data in Model){
    <div>@data.age</div>
}

对不起代码格式...从手机发布