如何将 ViewModel 传递给索引视图？

Question

我正在使用 MVC 5 和 EF 6。 下面有一个 viewModel，我用它来创建视图：

public class LeadViewModel
{
    public Leads _leads { get; set; }
    public Addresses _addresses { get; set; }
    public Phones _phones { get; set; }
    public Emails _emails { get; set; }

    public SelectList EmployeesList { get; set; }
    public SelectList IndustryList { get; set; }
    public SelectList LeadSourceList { get; set; }
    public SelectList LeadStatusList { get; set; }

    public SelectList AddressTypeList { get; set; }
    public SelectList CityList { get; set; }

    public SelectList PhoneTypeList { get; set; }
}

现在我想将它的一些字段传递给索引视图。我该怎么做？

这里是关于其他表的更多信息：

1-领导班：

public partial class Leads
{
    public Leads()
    {            
        this.LeadAddresses = new HashSet<LeadAddresses>();
        this.LeadContacts = new HashSet<LeadContacts>();
        this.LeadEmails = new HashSet<LeadEmails>();
        this.LeadPhones = new HashSet<LeadPhones>();
    }

    [Key]
    public int LeadID { get; set; }
    public string NamePrefix { get; set; }
    public string Title { get; set; }
    public string FirstName { get; set; }]
    public string LastName { get; set; }
    [NotMapped]       
    public string FullName { get { return NamePrefix + " " + FirstName + " " + LastName; } }
    public int EmployeeID { get; set; }
    public int LeadStatusID { get; set; }


    public virtual Employees Employees { get; set; }
    public virtual ICollection<LeadEmails> LeadEmails { get; set; }
    public virtual ICollection<LeadAddresses> LeadAddresses { get; set; }
    public virtual ICollection<LeadPhones> LeadPhones { get; set; }
    public virtual LeadStatus LeadStatus { get; set; }
}

电话类：

public partial class Phones
{
    public Phones()
    {            
        this.LeadPhones = new HashSet<LeadPhones>();
    }

    [Key]
    public int PhoneID { get; set; }
    public int PhoneTypeID { get; set; }              
    public string PhoneNo { get; set; }    
    public bool IsAllowed { get; set; }

    public virtual ICollection<LeadPhones> LeadPhones { get; set; }
    public virtual PhoneTypes PhoneTypes { get; set; }
}

LeadPhones 接线表：

public partial class LeadPhones
{
    [Key]
    public int LeadPhoneID { get; set; }
    public int LeadID { get; set; }
    public int PhoneID { get; set; }

    public virtual Leads Leads { get; set; }
    public virtual Phones Phones { get; set; }
}

在索引视图中我只想显示：

Leads.FullName
Leads.Title
Leads.LeadStatus.Status
Leads.Employees.FullName
Leads.Phones.PhoneNo
Leads.Industries.Industry

我应该将 viewModel 从控制器传递给 Index 视图吗？如果是这样，怎么做？ 我应该如何在索引视图中使用它？

Answer 1

为视图模型创建一个实例并将其传递给视图

    LeadViewModel model = new LeadViewModel();
    //Populate model
    return View(model);

Answer 2

除了潜在客户及其相关电话和电子邮件之外，您不需要任何额外信息，然后您可以直接从实体框架传递它：

public ActionResult SomeAction()
{
    IEnumerable<Leads> model = db.Leads.Include(i => i.LeadPhones).Include(n => n.LeadEmails);
    return View(model);
}

在视图中：

@model IEnumerable<Leads>

foreach(Leads lead in Model)
{
    foreach(Phones phone in lead.LeadPhones)
    {
        <div>@phone.PhoneNo</div>
    }

    foreach(LeadEmails email in lead.LeadEmail)
    {
        // similarly with emails
    }
}