有几件事我不清楚ASP.NET MV2。 在数据库中,我有表Contacts
与几个字段,并且有一个其他字段XmlFields
其中的类型是xml
。在该字段中存储额外的描述字段。
有4类:其对应于Contact
表和缺省情况下创建LINQ类时定义
ASP.NET MVC2 - 使用LINQ生成的类(验证问题)
Contact
类ContactListView
类继承Contact
类和有一些 附加属性ContactXmlView
类别包含 字段XmlFields
字段ContactDetailsView
类 合并ContactListView
和ContactXmlView
为一类和 这一个用来在 视图页面来显示数据
ContactListView
类已经重新定义从Contact
类的一些属性(这样我可以添加[Required]
滤波器用于验证) - 但我得到警告消息:
'ObjectTest.Models.Contacts.ContactListView.FirstName' 皮继承成员 “SA .Model.Contact.FirstName”。如果需要隐藏,请使用 新关键字。
ContactDetailsView
类在创建新联系人并将其添加到数据库时也用于表单中。
我不确定这是否是正确的方法,并且警告消息让我困惑了一下。任何建议这个?
感谢,
岛
编辑
根据Jakob's instructions我试了从无到有:
[MetadataType(typeof(Person_Validation))]
public partial class Person
{
}
public class Person_Validation
{
[Required]
string FirstName { get; set; }
[Required]
string LastName { get; set; }
[Required]
int Age { get; set; }
}
在控制器我有这样的:
[HttpPost]
public ActionResult Create(Person person, FormCollection collection)
{
if (ModelState.IsValid)
{
try
{
personRepository.Add(person);
personRepository.Save();
}
catch
{
return View(person);
}
}
return RedirectToAction("Index");
}
查看:
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Validate.Models.Person>" %>
<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">
Create
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h2>Create</h2>
<% using (Html.BeginForm()) {%>
<%= Html.ValidationSummary(true) %>
<fieldset>
<legend>Fields</legend>
<div class="editor-label">
<%= Html.LabelFor(model => model.FirstName) %>
</div>
<div class="editor-field">
<%= Html.TextBoxFor(model => model.FirstName) %>
<%= Html.ValidationMessageFor(model => model.FirstName) %>
</div>
<div class="editor-label">
<%= Html.LabelFor(model => model.LastName) %>
</div>
<div class="editor-field">
<%= Html.TextBoxFor(model => model.LastName) %>
<%= Html.ValidationMessageFor(model => model.LastName) %>
</div>
<div class="editor-label">
<%= Html.LabelFor(model => model.Age) %>
</div>
<div class="editor-field">
<%= Html.TextBoxFor(model => model.Age) %>
<%= Html.ValidationMessageFor(model => model.Age) %>
</div>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
<% } %>
<div>
<%= Html.ActionLink("Back to List", "Index") %>
</div>
</asp:Content>
当发布新的人,没有价值观,没有任何反应(页面刚被重新加载)。以某些值发布时,人员被添加到数据库。 我不知道我在做什么错。
编辑2
我认为问题是在已生成的部分类Person
LINQ。当我定义新的部分类Person,并点击它, “转到定义”,我得到以下警告:
C:\ Documents和Settings \ Korisnik \我 文档\ Visual Studio的 2008 \项目\验证\验证\ n \型号DataClasses1.designer.cs - (78,23):Validate.Models.Person
C:\ Documents和Settings \ Korisnik \我 文档\ Visual Studio的 2008 \项目\验证\验证\ Models \ PersonRepository.cs - (11,26):Validate.Models.Person
这是由LINQ生成的类的一部分:
[Table(Name="dbo.Persons")]
public partial class Person : INotifyPropertyChanging, INotifyPropertyChanged
{
private static PropertyChangingEventArgs emptyChangingEventArgs = new PropertyChangingEventArgs(String.Empty);
private int _PersonID;
private string _FirstName;
private string _LastName;
private string _Age;
...
我敢肯定,这是原因,但我不知道如何解决这个问题。任何想法?
编辑3
好吧,让我们从一开始走......所以这是文件夹结构:
Dataclasses1.designer.cs:
#pragma warning disable 1591
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:2.0.50727.3603
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
namespace Validate.Models
{
using System.Data.Linq;
using System.Data.Linq.Mapping;
using System.Data;
using System.Collections.Generic;
using System.Reflection;
using System.Linq;
using System.Linq.Expressions;
using System.ComponentModel;
using System;
[System.Data.Linq.Mapping.DatabaseAttribute(Name="Database1")]
public partial class DataClasses1DataContext : System.Data.Linq.DataContext
{
private static System.Data.Linq.Mapping.MappingSource mappingSource = new AttributeMappingSource();
#region Extensibility Method Definitions
partial void OnCreated();
partial void InsertPerson(Person instance);
partial void UpdatePerson(Person instance);
partial void DeletePerson(Person instance);
#endregion
public DataClasses1DataContext() :
base(global::System.Configuration.ConfigurationManager.ConnectionStrings["Database1ConnectionString"].ConnectionString, mappingSource)
{
OnCreated();
}
public DataClasses1DataContext(string connection) :
base(connection, mappingSource)
{
OnCreated();
}
public DataClasses1DataContext(System.Data.IDbConnection connection) :
base(connection, mappingSource)
{
OnCreated();
}
public DataClasses1DataContext(string connection, System.Data.Linq.Mapping.MappingSource mappingSource) :
base(connection, mappingSource)
{
OnCreated();
}
public DataClasses1DataContext(System.Data.IDbConnection connection, System.Data.Linq.Mapping.MappingSource mappingSource) :
base(connection, mappingSource)
{
OnCreated();
}
public System.Data.Linq.Table<Person> Persons
{
get
{
return this.GetTable<Person>();
}
}
}
[Table(Name="dbo.Persons")]
public partial class Person : INotifyPropertyChanging, INotifyPropertyChanged
{
private static PropertyChangingEventArgs emptyChangingEventArgs = new PropertyChangingEventArgs(String.Empty);
private int _PersonID;
private string _FirstName;
private string _LastName;
private string _Age;
#region Extensibility Method Definitions
partial void OnLoaded();
partial void OnValidate(System.Data.Linq.ChangeAction action);
partial void OnCreated();
partial void OnPersonIDChanging(int value);
partial void OnPersonIDChanged();
partial void OnFirstNameChanging(string value);
partial void OnFirstNameChanged();
partial void OnLastNameChanging(string value);
partial void OnLastNameChanged();
partial void OnAgeChanging(string value);
partial void OnAgeChanged();
#endregion
public Person()
{
OnCreated();
}
[Column(Storage="_PersonID", AutoSync=AutoSync.OnInsert, DbType="Int NOT NULL IDENTITY", IsPrimaryKey=true, IsDbGenerated=true)]
public int PersonID
{
get
{
return this._PersonID;
}
set
{
if ((this._PersonID != value))
{
this.OnPersonIDChanging(value);
this.SendPropertyChanging();
this._PersonID = value;
this.SendPropertyChanged("PersonID");
this.OnPersonIDChanged();
}
}
}
[Column(Storage="_FirstName", DbType="NChar(10)")]
public string FirstName
{
get
{
return this._FirstName;
}
set
{
if ((this._FirstName != value))
{
this.OnFirstNameChanging(value);
this.SendPropertyChanging();
this._FirstName = value;
this.SendPropertyChanged("FirstName");
this.OnFirstNameChanged();
}
}
}
[Column(Storage="_LastName", DbType="NChar(10)")]
public string LastName
{
get
{
return this._LastName;
}
set
{
if ((this._LastName != value))
{
this.OnLastNameChanging(value);
this.SendPropertyChanging();
this._LastName = value;
this.SendPropertyChanged("LastName");
this.OnLastNameChanged();
}
}
}
[Column(Storage="_Age", DbType="NChar(10)")]
public string Age
{
get
{
return this._Age;
}
set
{
if ((this._Age != value))
{
this.OnAgeChanging(value);
this.SendPropertyChanging();
this._Age = value;
this.SendPropertyChanged("Age");
this.OnAgeChanged();
}
}
}
public event PropertyChangingEventHandler PropertyChanging;
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void SendPropertyChanging()
{
if ((this.PropertyChanging != null))
{
this.PropertyChanging(this, emptyChangingEventArgs);
}
}
protected virtual void SendPropertyChanged(String propertyName)
{
if ((this.PropertyChanged != null))
{
this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
}
#pragma warning restore 1591
PersonRepository.cs :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations;
using System.Web.Mvc;
using Validate.Models;
namespace Validate.Models
{
[MetadataType(typeof(Person_Validation))]
public partial class Person
{
}
public class Person_Validation
{
[Required]
string FirstName { get; set; }
[Required]
string LastName { get; set; }
[Required]
int Age { get; set; }
}
public class PersonRepository
{
private DataClasses1DataContext db = new DataClasses1DataContext();
public IQueryable<Person> FindAllPersons()
{
return db.Persons;
}
public Person GetPerson(int id)
{
return db.Persons.SingleOrDefault(x => x.PersonID == id);
}
public void Add(Person person)
{
db.Persons.InsertOnSubmit(person);
}
public void Delete(Person person)
{
db.Persons.DeleteOnSubmit(person);
}
public void Save()
{
db.SubmitChanges();
}
}
}
/Views/Person/Create.aspx:
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Validate.Models.Person>" %>
<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">
Create
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h2>Create</h2>
<%= ViewData["greska"]%>
<% using (Html.BeginForm()) {%>
<%= Html.ValidationSummary(true) %>
<fieldset>
<legend>Fields</legend>
<div class="editor-label">
<%= Html.LabelFor(model => model.FirstName) %>
</div>
<div class="editor-field">
<%= Html.TextBoxFor(model => model.FirstName) %>
<%= Html.ValidationMessageFor(model => model.FirstName) %>
</div>
<div class="editor-label">
<%= Html.LabelFor(model => model.LastName) %>
</div>
<div class="editor-field">
<%= Html.TextBoxFor(model => model.LastName) %>
<%= Html.ValidationMessageFor(model => model.LastName) %>
</div>
<div class="editor-label">
<%= Html.LabelFor(model => model.Age) %>
</div>
<div class="editor-field">
<%= Html.TextBoxFor(model => model.Age) %>
<%= Html.ValidationMessageFor(model => model.Age) %>
</div>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
<% } %>
<div>
<%= Html.ActionLink("Back to List", "Index") %>
</div>
</asp:Content>
我更新了我的答案,以显示如何实现您的操作方法:-) – 2010-05-03 16:53:32
很难说您的代码中出现了什么问题,但实际没有看到它,但请检查我的编辑#2。 – 2010-05-05 14:57:18
我不确定你是什么意思的“大会”?命名空间是相同的,但我不确定程序集是否相同。我发布了所有的代码和文件夹结构,请再次检查我的新编辑。谢谢Jakob :) – 2010-05-07 08:16:04