如何在mvc4

Question

假设我有以下模型和Index操作方法。

public class detailsbyclientIdviewModel
{
    public int upldId { get; set; }
    public IPagedList<detailsbyClientId> detailsbyclientId { get; set; }
    public IEnumerable<Metadata> metadata { get; set; }
    public IEnumerable<int> Ids { get; set; }
    public IEnumerable<Records> records { get; set; }
}

我有一个动作方法如下。

public ActionResult Index(detailsbyclientIdviewModel model)
{
    documentVerificationBAL objBAL = new documentVerificationBAL();
    string username = FormsAuthentication.Decrypt(Request.Cookies[FormsAuthentication.FormsCookieName].Value).Name;
    List<Records> documentstobeVerified = objBAL.getverificationRecords();
    //Assigning recieved data to Model
    model = new detailsbyclientIdviewModel()
    {
        records = documentstobeVerified,
        detailsbyclientId=new IPagedList<detailsbyclientId>()
    };
    return View(model);
}

我有很多动作方法并在视图中检索数据。在我的视图中，我有详细信息来自clientId.someproperties。当第一次运行页面时，我收到错误，例如对象未初始化（最终保持null值）。那么如何初始化所有这些属性呢？

Answer 1

我不认为你必须在Action中使用model作为输入才能将它作为输入返回给View。尝试：

public ActionResult Index()
    {
        documentVerificationBAL objBAL = new documentVerificationBAL();
        string username = FormsAuthentication.Decrypt(Request.Cookies[FormsAuthentication.FormsCookieName].Value).Name;
        List<Records> documentstobeVerified = objBAL.getverificationRecords();
        //Assigning recieved data to Model
        detailsbyclientIdviewModel  model = new detailsbyclientIdviewModel()
        {
            records = documentstobeVerified,
            detailsbyclientId=new IPagedList<detailsbyclientId>()
        };
        return View(model);
    }