Question

我有一个类似

的模型

  [Required]
    public string Username { get; set; }
    [Required]
    public string Password { get; set; }

    public IEnumerable<Connection> Connections { get; set; }

Connection类是

 public class Connection
{

    public int ConnectionId { get; set; }
    public string Name { get; set; }
}

我想从下拉列表中选择一个具有用户名和密码的数据库。

在我的控制器中，我创建了连接列表，如下所示

public ActionResult Create()
    {
        var databaseConnection = new DatabaseConnection();

        databaseConnection.Connections = new List<Connection>
            {
                new Connection()
                    {
                        ConnectionId = 1,
                        Name = @"10.44.171.39\SQL2K8R2"
                    },
                new Connection()
                    {
                        ConnectionId = 2,
                        Name = "TestDb"
                    }
            };

        return View(databaseConnection);
    }

相应的观点是

<div>
        <span>Select Database</span>
        <p>
            <select name="Section">
                <option value="" selected="selected">Select Section</option>
                @foreach (var item in Model.Connections)
                {
                    <option value="@item.ConnectionId">@item.Name</option>
                }
            </select>
        </p>
    </div>

当我发布表单时，我收到用户名和密码确定但没有得到

连接名称和ID。

任何帮助将不胜感激在此先感谢:)

Answer 1

像这样修改<select>

<div>
        <span>Select Database</span>
        <p>
            @Html.DropDownListFor(
                m => m.Connections.ConnectionId,
                new SelectList(Model.Connections, "ConnectionId", "Name"),   
                "Select a Connection"
            )
        </p>
</div>

当您发布表单后，它将自动绑定到ConnectionId属性。

现在向您的控制器添加一个帖子操作。

[HttpPost]
public ActionResult Create(DatabaseConnection connection)
{
    //get the selected value from dropdown.
    var selected=connection.Connections.ConnectionId;
    //do other stuff..
    return View();
}

从asp.net MVC3中的模型生成DropDownList

1 个答案: