使用 DataAnnotations 通过 WCF 引用 MVC 模型

Question

我在带有 EntityFramework 4.1 的 ASP.Net 4.0 和带有 Razor 的 MVC3 中使用 WCF。

DataAnnotations 在以下情况下工作正常：

在另一个带有 EF 的 DLL 中拥有 POCO 类，然后使用来自我的表示层的直接调用填充模型。如果我尝试在前端网格上编辑电子邮件地址并故意放入虚假电子邮件，则该属性的 DataAnnotation 错误出现。

但是，如果我将方法与 WCF 中间层调用（而不是直接调用）一起使用，则数据会返回并得到很好的更新，除了 DataAnnotations不要在这种情况下工作。如果我尝试在前端网格上编辑电子邮件地址并故意放入虚假电子邮件，则该属性的 DataAnnotation 不会显示。

如何使用 WCF 让它工作？一定有某种 WCF 属性在我无法识别 DataAnnotations 的地方丢失。

下面是相关代码：

2 层场景：

型号

 using System;
using System.Collections.Generic;
//using System.ServiceModel;
//using System.Runtime.Serialization;
using System.ComponentModel.DataAnnotations;
using DataAnnotationsExtensions;

namespace YeagerTechModel
{
    public class Customer
    {
        public Customer()
        {
            this.Projects = new HashSet<Project>();
        }


        public short CustomerID { get; set; }


        [Required]
        [StringLength(50)]
        [DataType(DataType.EmailAddress)]
        [Email]
        public string Email { get; set; }


        [StringLength(50, MinimumLength = 3, ErrorMessage = "Must have a minimum length of 3.")]
        [DataType(DataType.Text)]
        public string Company { get; set; }


        [StringLength(50, MinimumLength = 3, ErrorMessage = "Must have a minimum length of 3.")]
        [DataType(DataType.Text)]
        public string FirstName { get; set; }


        [StringLength(50, MinimumLength = 3, ErrorMessage = "Must have a minimum length of 3.")]
        [DataType(DataType.Text)]
        public string LastName { get; set; }


        [StringLength(50, MinimumLength = 3, ErrorMessage = "Must have a minimum length of 3.")]
        [DataType(DataType.Text)]
        public string Address1 { get; set; }


        [StringLength(50)]
        [DataType(DataType.Text)]
        public string Address2 { get; set; }


        [StringLength(50, MinimumLength = 3, ErrorMessage = "Must have a minimum length of 3.")]
        [DataType(DataType.Text)]
        public string City { get; set; }


        [StringLength(2, MinimumLength = 2, ErrorMessage = "Must have a length of 2.")]
        [DataType(DataType.Text)]
        public string State { get; set; }


        [StringLength(10)]
        [DataType(DataType.Text)]
        [RegularExpression(@"^\d{5}(-\d{4})?$", ErrorMessage = "Invalid Zip")]
        public string Zip { get; set; }


        [StringLength(12)]
        [DataType(DataType.PhoneNumber)]
        [RegularExpression(@"^\s*([\(]?)\[?\s*\d{3}\s*\]?[\)]?\s*[\-]?[\.]?\s*\d{3}\s*[\-]?[\.]?\s*\d{4}$", ErrorMessage = "Invalid Phone")]
        public string HomePhone { get; set; }


        [StringLength(12)]
        [DataType(DataType.PhoneNumber)]
        [RegularExpression(@"^\s*([\(]?)\[?\s*\d{3}\s*\]?[\)]?\s*[\-]?[\.]?\s*\d{3}\s*[\-]?[\.]?\s*\d{4}$", ErrorMessage = "Invalid Phone")]
        public string CellPhone { get; set; }


        [StringLength(100)]
        [DataType(DataType.Url)]
        [Url]
        public string Website { get; set; }


        [StringLength(50)]
        [DataType(DataType.EmailAddress)]
        [Email]
        public string IMAddress { get; set; }


        public System.DateTime CreatedDate { get; set; }


        public Nullable<System.DateTime> UpdatedDate { get; set; }


        public virtual ICollection<Project> Projects { get; set; }
    }
} 

控制器：

[GridAction]
        public ActionResult Index()
        {
            ViewData["ErrCode"] = string.Empty;

            if (HttpContext.User.IsInRole("Admin"))
            {
                try
                {
                    //IEnumerable<YeagerTechWcfService.Customer> customerList = db.GetCustomers();

                    //IEnumerable<YeagerTechModel.Customer> customerList = db.GetCustomers();
                    DbContext.Configuration.ProxyCreationEnabled = false;
                    IEnumerable<Customer> customerList = DbContext.Customers.Where(p => p.CustomerID > 0);

                    if (DbContext.Database.Connection != null)
                    {
                        if (DbContext.Database.Connection.State != System.Data.ConnectionState.Closed)
                        {
                            DbContext.Database.Connection.Close();
                            DbContext.Database.Connection.Dispose();
                        }
                    }

                    return View(new GridModel<YeagerTechModel.Customer>
                    {
                        Data = customerList

                    });
                }
                catch (Exception ex)
                {
                    throw ex;
                }
            }
            else
            {
                //HttpCookie cn = Request.Cookies["strCookieName"];
                //if (cn != null)
                //{
                //    YeagerTechWcfService.Customer cust = db.GetCustomerID(Convert.ToInt16(cn.Value),false);

                //    if (cust != null)
                //    {
                //        return View(new GridModel<YeagerTechWcfService.Customer>
                //        {
                //            //Data = cust
                //        });
                //    }
                //    else
                //        return View(new GridModel<YeagerTechWcfService.Customer>());
                //}
                //else
                //{
                //    TempData["ErrCode"] = "CustView";
                return RedirectToAction("Index", "Home");
                //}
            }
        }

查看：

@model Telerik.Web.Mvc.GridModel<YeagerTechModel.Customer>
@{
    ViewBag.Title = "Customer Index";
}
<h2>
    Customer Index</h2>
@(  Html.Telerik().Grid<YeagerTechModel.Customer>(Model.Data)
      .Name("Customers")
            .DataKeys(dataKeys => dataKeys.Add(o => o.CustomerID)
                                            .RouteKey("CustomerID"))
                .ToolBar(commands => commands.Insert().ButtonType(GridButtonType.Text).ImageHtmlAttributes(new { style = "margin-left:0" }))
      .Columns(columns =>
            {
                columns.Bound(o => o.CustomerID).Hidden(true);
                columns.Command(commands =>
                {
                    commands.Edit().ButtonType(GridButtonType.Text);
                }).Width(200).Title("Command");
                columns.Bound(o => o.Email).Width(200).Filterable(false);
                columns.Bound(o => o.Company).Width(200).Filterable(false);
                columns.Bound(o => o.FirstName).Width(100).Title("FName").Filterable(false);
                columns.Bound(o => o.LastName).Width(100).Title("LName").Filterable(false);
                columns.Bound(o => o.Address1).Width(200).Title("Addr1").Filterable(false).Sortable(false);
                columns.Bound(o => o.Address2).Width(100).Title("Addr2").Filterable(false).Sortable(false);
                columns.Bound(o => o.City).Width(100);
                columns.Bound(o => o.State).Width(40).Title("ST");
                columns.Bound(o => o.Zip).Width(60);
                columns.Bound(o => o.HomePhone).Width(120).Filterable(false).Sortable(false);
                columns.Bound(o => o.CellPhone).Width(120).Filterable(false).Sortable(false);
                columns.Bound(o => o.Website).Width(100).Filterable(false).Sortable(false);
                columns.Bound(o => o.IMAddress).Width(100).Filterable(false).Sortable(false);
                columns.Bound(o => o.CreatedDate).Format("{0:MM/dd/yyyy}").ReadOnly(true).Width(120).Filterable(false).Sortable(false);
                columns.Bound(o => o.UpdatedDate).Format("{0:MM/dd/yyyy}").ReadOnly(true).Width(120).Filterable(false).Sortable(false);
            }).DataBinding(dataBinding =>
                dataBinding.Ajax()
                        .Insert("_InsertAjaxEditing", "Customer")
                        .Update("_SaveAjaxEditing", "Customer"))
    .Editable(editing => editing.Mode(GridEditMode.InLine))
    .Pageable()
    .Sortable()
    .Filterable()
    .Scrollable()
 )

NTier 场景 型号：

using System;
using System.Collections.Generic;
using System.ServiceModel;
using System.Runtime.Serialization;
using System.ComponentModel.DataAnnotations;
using DataAnnotationsExtensions;

namespace YeagerTechModel
{
    [Serializable]
    [DataContract(IsReference = true)]
    public class Customer
    {
        public Customer()
        {
            this.Projects = new HashSet<Project>();
        }

        [DataMember]
        public short CustomerID { get; set; }

        [DataMember]
        [Required]
        [StringLength(50)]
        [DataType(DataType.EmailAddress)]
        [Email]
        public string Email { get; set; }

        [DataMember]
        [StringLength(50, MinimumLength = 3, ErrorMessage = "Must have a minimum length of 3.")]
        [DataType(DataType.Text)]
        public string Company { get; set; }

        [DataMember]
        [StringLength(50, MinimumLength = 3, ErrorMessage = "Must have a minimum length of 3.")]
        [DataType(DataType.Text)]
        public string FirstName { get; set; }

        [DataMember]
        [StringLength(50, MinimumLength = 3, ErrorMessage = "Must have a minimum length of 3.")]
        [DataType(DataType.Text)]
        public string LastName { get; set; }

        [DataMember]
        [StringLength(50, MinimumLength = 3, ErrorMessage = "Must have a minimum length of 3.")]
        [DataType(DataType.Text)]
        public string Address1 { get; set; }

        [DataMember]
        [StringLength(50)]
        [DataType(DataType.Text)]
        public string Address2 { get; set; }

        [DataMember]
        [StringLength(50, MinimumLength = 3, ErrorMessage = "Must have a minimum length of 3.")]
        [DataType(DataType.Text)]
        public string City { get; set; }

        [DataMember]
        [StringLength(2, MinimumLength = 2, ErrorMessage = "Must have a length of 2.")]
        [DataType(DataType.Text)]
        public string State { get; set; }

        [DataMember]
        [StringLength(10)]
        [DataType(DataType.Text)]
        [RegularExpression(@"^\d{5}(-\d{4})?$", ErrorMessage = "Invalid Zip")]
        public string Zip { get; set; }

        [DataMember]
        [StringLength(12)]
        [DataType(DataType.PhoneNumber)]
        [RegularExpression(@"^\s*([\(]?)\[?\s*\d{3}\s*\]?[\)]?\s*[\-]?[\.]?\s*\d{3}\s*[\-]?[\.]?\s*\d{4}$", ErrorMessage = "Invalid Phone")]
        public string HomePhone { get; set; }

        [DataMember]
        [StringLength(12)]
        [DataType(DataType.PhoneNumber)]
        [RegularExpression(@"^\s*([\(]?)\[?\s*\d{3}\s*\]?[\)]?\s*[\-]?[\.]?\s*\d{3}\s*[\-]?[\.]?\s*\d{4}$", ErrorMessage = "Invalid Phone")]
        public string CellPhone { get; set; }

        [DataMember]
        [StringLength(100)]
        [DataType(DataType.Url)]
        [Url]
        public string Website { get; set; }

        [DataMember]
        [StringLength(50)]
        [DataType(DataType.EmailAddress)]
        [Email]
        public string IMAddress { get; set; }

        [DataMember]
        public System.DateTime CreatedDate { get; set; }

        [DataMember]
        public Nullable<System.DateTime> UpdatedDate { get; set; }

        [DataMember]
        public virtual ICollection<Project> Projects { get; set; }
    }
}

WCF 调用：

public IEnumerable<Customer> GetCustomers()
        {
            YeagerTechEntities DbContext = new YeagerTechEntities();

            DbContext.Configuration.ProxyCreationEnabled = false;

            IQueryable<Customer> customer = DbContext.Customers.Where(p => p.CustomerID > 0);

            CloseConnection(DbContext);

            return customer;
        }

控制器：

[GridAction]
        public ActionResult Index()
        {
            ViewData["ErrCode"] = string.Empty;

            if (HttpContext.User.IsInRole("Admin"))
            {
                try
                {
                    IEnumerable<YeagerTechWcfService.Customer> customerList = db.GetCustomers();

                    return View(new GridModel<YeagerTechWcfService.Customer>
                    {
                        Data = customerList
                    });
                }
                catch (Exception ex)
                {
                    throw ex;
                }
            }
            else
            {
                return RedirectToAction("Index", "Home");
            }
        }

查看：

@model Telerik.Web.Mvc.GridModel<YeagerTech.YeagerTechWcfService.Customer>
@{
    ViewBag.Title = "Customer Index";
}
<h2>
    Customer Index</h2>
@(  Html.Telerik().Grid<YeagerTech.YeagerTechWcfService.Customer>(Model.Data)
      .Name("Customers")
            .DataKeys(dataKeys => dataKeys.Add(o => o.CustomerID)
                                            .RouteKey("CustomerID"))
                .ToolBar(commands => commands.Insert().ButtonType(GridButtonType.Text).ImageHtmlAttributes(new { style = "margin-left:0" }))
      .Columns(columns =>
            {
                columns.Bound(o => o.CustomerID).Hidden(true);
                columns.Command(commands =>
                {
                    commands.Edit().ButtonType(GridButtonType.Text);
                }).Width(200).Title("Command");
                columns.Bound(o => o.Email).Width(200).Filterable(false);
                columns.Bound(o => o.Company).Width(200).Filterable(false);
                columns.Bound(o => o.FirstName).Width(100).Title("FName").Filterable(false);
                columns.Bound(o => o.LastName).Width(100).Title("LName").Filterable(false);
                columns.Bound(o => o.Address1).Width(200).Title("Addr1").Filterable(false).Sortable(false);
                columns.Bound(o => o.Address2).Width(100).Title("Addr2").Filterable(false).Sortable(false);
                columns.Bound(o => o.City).Width(100);
                columns.Bound(o => o.State).Width(40).Title("ST");
                columns.Bound(o => o.Zip).Width(60);
                columns.Bound(o => o.HomePhone).Width(120).Filterable(false).Sortable(false);
                columns.Bound(o => o.CellPhone).Width(120).Filterable(false).Sortable(false);
                columns.Bound(o => o.Website).Width(100).Filterable(false).Sortable(false);
                columns.Bound(o => o.IMAddress).Width(100).Filterable(false).Sortable(false);
                columns.Bound(o => o.CreatedDate).Format("{0:MM/dd/yyyy}").ReadOnly(true).Width(120).Filterable(false).Sortable(false);
                columns.Bound(o => o.UpdatedDate).Format("{0:MM/dd/yyyy}").ReadOnly(true).Width(120).Filterable(false).Sortable(false);
            }).DataBinding(dataBinding =>
                dataBinding.Ajax()
                        .Insert("_InsertAjaxEditing", "Customer")
                        .Update("_SaveAjaxEditing", "Customer"))
    .Editable(editing => editing.Mode(GridEditMode.InLine))
    .Pageable()
    .Sortable()
    .Filterable()
    .Scrollable()
 )

Answer 1

不，除了您正在使用的技术背后的一些理论之外，您没有遗漏任何东西。 WCF 是用于公开服务的技术，它以可互操作的方式进行。服务暴露的数据契约只是为数据创建的。你在合约上使用了多少花哨的属性，或者你在属性的get 和set 方法中放入了多少自定义逻辑都没有关系。在客户端，您总是会看到：

[DataContract(IsReference = true)]
public partial class Customer
{
    [DataMember]
    public short CustomerID { get; set; }

    [DataMember]
    public string Email { get; set; }

    [DataMember]
    public string Company { get; set; }

    [DataMember]
    public string FirstName { get; set; }

    [DataMember]
    public string LastName { get; set; }

    [DataMember]
    public string Address1 { get; set; }

    [DataMember]
    public string Address2 { get; set; }

    [DataMember]
    public string City { get; set; }

    [DataMember]
    public string State { get; set; }

    [DataMember]
    public string Zip { get; set; }

    [DataMember]
    public string HomePhone { get; set; }

    [DataMember]
    public string CellPhone { get; set; }

    [DataMember]
    public string Website { get; set; }

    [DataMember]
    public string IMAddress { get; set; }

    [DataMember]
    public System.DateTime CreatedDate { get; set; }

    [DataMember]
    public Nullable<System.DateTime> UpdatedDate { get; set; }

    [DataMember]
    public Project[] Projects { get; set; }
}

这样做的原因是，一旦您公开了服务，它就会以可互操作的方式公开其所有合同 - 服务和操作合同由 WSDL 描述，数据合同由 XSD 描述。 XSD 只能描述数据结构，不能描述逻辑。验证本身可以在 XSD 中以某种有限的方式进行描述，但 .NET XSD 生成器不这样做。将服务引用添加到 WCF 服务后，代理生成器将 WSDL 和 XSD 作为源，并在没有所有这些属性的情况下再次创建您的类。

如果您想要进行客户端验证，您应该首先在客户端实现该验证 - 可以通过对 WCF 代理使用的部分类使用 buddy classes 来完成。如果您不想使用这种方式，则在添加服务引用时，您必须在 WCF 客户端和 WCF 服务和reuse those types 之间与您的实体共享程序集。这将在您的服务和 ASP.NET MVC 应用程序之间创建紧密耦合。