Asp.net mvc MVC网格到Excel

我发现这个项目/教程：

而且效果很好！但是，我只能让它与一个模型一起工作。因此，如果我只采用我的组织模式，它会非常有效。但是，我需要通过运行SQL查询来填充GridView。我原以为LINQ到SQL可以工作，但我想不出来

这将使用我的组织模型中的数据加载GridView，并将其发送到视图

private VAGTCEntities db = new VAGTCEntities();
public ActionResult Index()
{
    ViewBag.Message = "Welcome to ASP.NET MVC!";
    List<Organization> model = db.Organizations.ToList();

    GridView gv = new GridView();
    gv.DataSource = model;
    gv.DataBind();
    Session["Organizations"] = gv;

    return View(model);
}

简单！但是，我不知道如何使用LINQtoSQL查询。我需要能够引用多个表。例如，拉入特定县和州的组织的所有地址（OrganizationAddress）以及组织名称（Organization）。我想我必须使用ViewModel，但是我仍然无法填充它

组织模式：

namespace VAGTC.Models
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel.DataAnnotations;
    public partial class Organization
    {
        public Organization()
        {
            this.ContactMTMOrganizations = new HashSet<ContactMTMOrganization>();
            this.ContactTitles = new HashSet<ContactTitle>();
            this.OrganizationAddresses = new HashSet<OrganizationAddress>();
            this.OrganizationBusinessTypes = new HashSet<OrganizationBusinessType>();
            this.OrganizationCountries = new HashSet<OrganizationCountry>();
            this.OrganizationEmails = new HashSet<OrganizationEmail>();
            this.OrganizationIndustryCodes = new HashSet<OrganizationIndustryCode>();
            this.OrganizationMemberships = new HashSet<OrganizationMembership>();
            this.OrganizationNotes = new HashSet<OrganizationNote>();
            this.OrganizationPhones = new HashSet<OrganizationPhone>();
            this.OrganizationWebsites = new HashSet<OrganizationWebsite>();
        }

        [Display(Name = "Organization ID:")]
        public int OrganizationID { get; set; }
        [Display(Name = "Organization Name:")]
        public string Name { get; set; }

        public virtual ICollection<ContactMTMOrganization> ContactMTMOrganizations { get; set; }
        public virtual ICollection<ContactTitle> ContactTitles { get; set; }
        public virtual ICollection<OrganizationAddress> OrganizationAddresses { get; set; }
        public virtual ICollection<OrganizationBusinessType> OrganizationBusinessTypes { get; set; }
        public virtual ICollection<OrganizationCountry> OrganizationCountries { get; set; }
        public virtual ICollection<OrganizationEmail> OrganizationEmails { get; set; }
        public virtual ICollection<OrganizationIndustryCode> OrganizationIndustryCodes { get; set; }
        public virtual ICollection<OrganizationMembership> OrganizationMemberships { get; set; }
        public virtual ICollection<OrganizationNote> OrganizationNotes { get; set; }
        public virtual ICollection<OrganizationPhone> OrganizationPhones { get; set; }
        public virtual ICollection<OrganizationWebsite> OrganizationWebsites { get; set; }
    }
}

我将非常感激踢向正确的方向

多谢各位

编辑*

我认为这可以归结为能够填充如下列表：

List<Organization> model = db.Organizations.ToList();

List model=db.Organizations.ToList（）；

---

但是来自多个表。仍然在玩ViewModels，但它是空的，因为我不知道如何用Linq to SQL填充ViewModel

本质上，您需要在实体之间执行相当于SQL连接的操作。如果启用了延迟加载，则可以自动访问与主组织实体相关的所有实体。如果没有，您可以使用即时加载来访问相同的数据（例如使用

db.Organizations.Include（o=>o.OrganizationAddress）.ToList（）

）

---

也可以使用Linq到实体联接方法。如果要使用ViewModel，可能需要创建一个类来存储组织和相关实体中感兴趣的属性。您只需要从实体对象（在本例中，对于组织集合中的每个项目）填充它的属性。

本质上，您需要在实体之间执行相当于SQL联接的操作。如果启用了延迟加载，则可以自动访问与主组织实体相关的所有实体。如果没有，您可以使用即时加载来访问相同的数据（例如使用

db.Organizations.Include（o=>o.OrganizationAddress）.ToList（）

）

---

也可以使用Linq到实体联接方法。如果要使用ViewModel，可能需要创建一个类来存储组织和相关实体中感兴趣的属性。您只需要从实体对象中填充它的属性（在本例中，针对组织集合中的每个项目）。

您可能也想看看这个：我当然会！非常感谢你，你可能也想看看这个：我当然会的！非常感谢你谢谢你-今晚我要试试这个！谢谢-我今晚就试试这个！

namespace VAGTC.Models
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel.DataAnnotations;
    public partial class Organization
    {
        public Organization()
        {
            this.ContactMTMOrganizations = new HashSet<ContactMTMOrganization>();
            this.ContactTitles = new HashSet<ContactTitle>();
            this.OrganizationAddresses = new HashSet<OrganizationAddress>();
            this.OrganizationBusinessTypes = new HashSet<OrganizationBusinessType>();
            this.OrganizationCountries = new HashSet<OrganizationCountry>();
            this.OrganizationEmails = new HashSet<OrganizationEmail>();
            this.OrganizationIndustryCodes = new HashSet<OrganizationIndustryCode>();
            this.OrganizationMemberships = new HashSet<OrganizationMembership>();
            this.OrganizationNotes = new HashSet<OrganizationNote>();
            this.OrganizationPhones = new HashSet<OrganizationPhone>();
            this.OrganizationWebsites = new HashSet<OrganizationWebsite>();
        }

        [Display(Name = "Organization ID:")]
        public int OrganizationID { get; set; }
        [Display(Name = "Organization Name:")]
        public string Name { get; set; }

        public virtual ICollection<ContactMTMOrganization> ContactMTMOrganizations { get; set; }
        public virtual ICollection<ContactTitle> ContactTitles { get; set; }
        public virtual ICollection<OrganizationAddress> OrganizationAddresses { get; set; }
        public virtual ICollection<OrganizationBusinessType> OrganizationBusinessTypes { get; set; }
        public virtual ICollection<OrganizationCountry> OrganizationCountries { get; set; }
        public virtual ICollection<OrganizationEmail> OrganizationEmails { get; set; }
        public virtual ICollection<OrganizationIndustryCode> OrganizationIndustryCodes { get; set; }
        public virtual ICollection<OrganizationMembership> OrganizationMemberships { get; set; }
        public virtual ICollection<OrganizationNote> OrganizationNotes { get; set; }
        public virtual ICollection<OrganizationPhone> OrganizationPhones { get; set; }
        public virtual ICollection<OrganizationWebsite> OrganizationWebsites { get; set; }
    }
}

namespace VAGTC.Models
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel.DataAnnotations;

    public partial class OrganizationAddress
    {
        [Display(Name = "Street:")]
        public string StreetID { get; set; }
        [Display(Name = "City:")]
        public string CityID { get; set; }
        [Display(Name = "Organization ID:")]
        public int OrganizationID { get; set; }
        [Display(Name = "Country:")]
        public string CountryNameID { get; set; }
        [Display(Name = "County:")]
        public string CountyNameID { get; set; }
        [Display(Name = "County State:")]
        public string CountyStateID { get; set; }
        [Display(Name = "State:")]
        public string State { get; set; }
        [Display(Name = "Zip-code:")]
        public string ZipCode { get; set; }
        [Display(Name = "Address Type:")]
        public string Type { get; set; }

        public virtual Country Country { get; set; }
        public virtual County County { get; set; }
        public virtual Organization Organization { get; set; }

        public string FullAddress
        {
            get
            {
                return StreetID + ", " + CityID + ", " + State + " " + ZipCode + ", " + CountryNameID;
            }
        }
        public string FullCounty
        {
            get
            {
                return CountyNameID + ", " + CountyStateID;
            }
        }

    }
}

List<Organization> model = db.Organizations.ToList();