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  • asp.net Mvc 的自定义模型绑定

    View Code 
     1 <%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<自定义绑定模型.Models.User>" %>
 2 
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 4 <html xmlns="http://www.w3.org/1999/xhtml">
 5 <head runat="server">
 6     <title>Index</title>
 7 </head>
 8 <body>
 9     <% using (Html.BeginForm())
10        {%>
11     <%: Html.ValidationSummary(true) %>
12     <fieldset>
13         <legend>Fields</legend>
14         <div class="editor-label">
15             <%: Html.LabelFor(model => model.UserName) %>
16         </div>
17         <div class="editor-field">
18             <%: Html.TextBoxFor(model => model.UserName) %>
19             <%: Html.ValidationMessageFor(model => model.UserName) %>
20         </div>
21         <div class="editor-label">
22             <%: Html.LabelFor(model => model.Password) %>
23         </div>
24         <div class="editor-field">
25             <%: Html.TextBoxFor(model => model.Password) %>
26             <%: Html.ValidationMessageFor(model => model.Password) %>
27         </div>
28         <div class="editor-label">
29             <%: Html.LabelFor(model => model.Email) %>
30         </div>
31         <div class="editor-field">
32             <%: Html.TextBoxFor(model => model.Email) %>
33             <%: Html.ValidationMessageFor(model => model.Email) %>
34         </div>
35         <div class="editor-label">
36             <%: Html.LabelFor(model => model.Personal.Age) %>
37         </div>
38         <div class="editor-field">
39             <%: Html.TextBoxFor(model => model.Personal.Age)%>
40             <%: Html.ValidationMessageFor(model => model.Personal.Age)%>
41         </div>
42         <div class="editor-label">
43             <%: Html.LabelFor(model => model.Personal.Gender) %>
44         </div>
45         <%--这里是定义了一个变量用来存取下拉列表里面的选择项gender--%>
46         <% var gender = new List<SelectListItem>{
47                new SelectListItem{Text="请选择",Value="-1",Selected=true},
48                new SelectListItem {Text="男",Value="0"},
49                new SelectListItem{Text="女",Value="1"}};%>
50         <div class="editor-field">
51             <%: Html.DropDownListFor(model => model.Personal.Gender,gender)%>
52             <%: Html.ValidationMessageFor(model => model.Personal.Age)%>
53         </div>
54         <div class="editor-label">
55             <%: Html.LabelFor(model => model.Personal.RealName) %>
56         </div>
57         <div class="editor-field">
58             <%: Html.TextBoxFor(model => model.Personal.RealName)%>
59             <%: Html.ValidationMessageFor(model => model.Personal.RealName)%>
60         </div>
61         <p>
62             <input type="submit" value="Create" />
63         </p>
64     </fieldset>
65     <% } %>
66     <div>
67         <%: Html.ActionLink("Back to List", "Index") %>
68     </div>
69 </body>
70 </html>

    在模型绑定中我们可以自定义绑定内容和绑定方法类，下面我们来学习下这个东东。。。。。。。。。。

    代码说明：

    我们在定义绑定模型中，有2中绑定方法：
    方法一：给controller中的方法参数添加特性
      [AcceptVerbs(HttpVerbs.Post)]
            public ActionResult Index([Bind(Include = "Personal,Password")]User user)
            {
                return View();
            }
    方法二：给Model中的类添加特性

    //[Bind(Include = "Personal,Password")]//自定义绑定限制，这个是类的方法绑定限制
        public class User
        {

            public string UserName { get; set; }

            public string Password { get; set; }

            public string Email { get; set; }

            public Personal Personal { get; set; }
        }

    下面我来看看案例项目：

    这个是MOdel

    user 
     1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Web;
 5 using System.Web.Mvc;
 6 namespace 自定义绑定模型.Models
 7 {
 8     public enum Gender
 9     {
10         Male = 1,
11         Female = 0
12     }
13     //[Bind(Include = "Personal,Password")]//自定义绑定限制，这个是类的方法绑定限制
14     public class User
15     {
16 
17         public string UserName { get; set; }
18 
19         public string Password { get; set; }
20 
21         public string Email { get; set; }
22 
23         public Personal Personal { get; set; }
24     }
25 
26     public class Personal
27     {
28         public string RealName { get; set; }
29 
30         public int Age { get; set; }
31 
32         public Gender Gender { get; set; }
33     }
34 }

    controller：

    Controller 
     1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Web;
 5 using System.Web.Mvc;
 6 using 自定义绑定模型.Models;
 7 namespace 自定义绑定模型.Controllers
 8 {
 9     public class HomeController : Controller
10     {
11         //
12         // GET: /Home/
13 
14         public ActionResult Index()
15         {
16             return View();
17         }
18         [AcceptVerbs(HttpVerbs.Post)]
19         public ActionResult Index([Bind(Include = "Personal,Password")]User user)
20         {
21             return View();
22         }
23         /*说明：这里使用了自定义的绑定方法。我们给方法中的参数做了限制。
24          * [Bind(Include = "Personal,Password")]这个特性是将user中的属性只给Personal,Password
25          * 的属性绑定值，其他的都不绑定
26          */
27     }
28 }

    View：

    View 
     1 <%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<自定义绑定模型.Models.User>" %>
 2 
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 4 <html xmlns="http://www.w3.org/1999/xhtml">
 5 <head runat="server">
 6     <title>Index</title>
 7 </head>
 8 <body>
 9     <% using (Html.BeginForm())
10        {%>
11     <%: Html.ValidationSummary(true) %>
12     <fieldset>
13         <legend>Fields</legend>
14         <div class="editor-label">
15             <%: Html.LabelFor(model => model.UserName) %>
16         </div>
17         <div class="editor-field">
18             <%: Html.TextBoxFor(model => model.UserName) %>
19             <%: Html.ValidationMessageFor(model => model.UserName) %>
20         </div>
21         <div class="editor-label">
22             <%: Html.LabelFor(model => model.Password) %>
23         </div>
24         <div class="editor-field">
25             <%: Html.TextBoxFor(model => model.Password) %>
26             <%: Html.ValidationMessageFor(model => model.Password) %>
27         </div>
28         <div class="editor-label">
29             <%: Html.LabelFor(model => model.Email) %>
30         </div>
31         <div class="editor-field">
32             <%: Html.TextBoxFor(model => model.Email) %>
33             <%: Html.ValidationMessageFor(model => model.Email) %>
34         </div>
35         <div class="editor-label">
36             <%: Html.LabelFor(model => model.Personal.Age) %>
37         </div>
38         <div class="editor-field">
39             <%: Html.TextBoxFor(model => model.Personal.Age)%>
40             <%: Html.ValidationMessageFor(model => model.Personal.Age)%>
41         </div>
42         <div class="editor-label">
43             <%: Html.LabelFor(model => model.Personal.Gender) %>
44         </div>
45         <%--这里是定义了一个变量用来存取下拉列表里面的选择项gender--%>
46         <% var gender = new List<SelectListItem>{
47                new SelectListItem{Text="请选择",Value="-1",Selected=true},
48                new SelectListItem {Text="男",Value="0"},
49                new SelectListItem{Text="女",Value="1"}};%>
50         <div class="editor-field">
51             <%: Html.DropDownListFor(model => model.Personal.Gender,gender)%>
52             <%: Html.ValidationMessageFor(model => model.Personal.Age)%>
53         </div>
54         <div class="editor-label">
55             <%: Html.LabelFor(model => model.Personal.RealName) %>
56         </div>
57         <div class="editor-field">
58             <%: Html.TextBoxFor(model => model.Personal.RealName)%>
59             <%: Html.ValidationMessageFor(model => model.Personal.RealName)%>
60         </div>
61         <p>
62             <input type="submit" value="Create" />
63         </p>
64     </fieldset>
65     <% } %>
66     <div>
67         <%: Html.ActionLink("Back to List", "Index") %>
68     </div>
69 </body>
70 </html>

    我们先看看代码，首先我们先来创建user类，设置器属性。其次我们在创建controller。再次我们创建view，我们使用vs2010工具直接创建强类型视图，有利于我们代码编写效率。

    方法一：给controller中的方法参数添加特性
      [AcceptVerbs(HttpVerbs.Post)]
            public ActionResult Index([Bind(Include = "Personal,Password")]User user)
            {
                return View();
            }

    说明：在其方法中我们给他的方法参数设置bind特性，其中Include这个意思是包含。就是说只绑定Personal,Password属性，其他都不绑定。

    方法二：给Model中的类添加特性

    //[Bind(Include = "Personal,Password")]//自定义绑定限制，这个是类的方法绑定限制
        public class User
        {

            public string UserName { get; set; }

            public string Password { get; set; }

            public string Email { get; set; }

            public Personal Personal { get; set; }
        }

    这个执行效果和上面的一样。

    最后留给大家一个思考：如果我们不绑定Personal,Password这个属性呢？这里提示下：“Exclude”！

    大家自己做测试吧。
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  • 原文地址：https://www.cnblogs.com/ypfnet/p/2686844.html
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