通过扩展方法链式方法为MVC3视图添加验证

1 public static class Extensions
2 {
3 public static string EndWith(this string str)
4 {
5 return str &＃43; "&＃64;";
6 }
7 }

1 string str &＃61; "";
2 Response.Write(str.EndWith());

1 namespace MvcWeb.Extensions
2 {
3 public class JqueryHelper
4 {
5 public ViewContext ViewContext { get; private set; }
6
7 public WebViewPage ViewPage { get; private set; }
8
9 public RouteCollection RouteCollection { get; private set; }
10
11 public JqueryHelper(ViewContext viewContext, WebViewPage page, RouteCollection routeCollection)
12 {
13 this.ViewContext &＃61; viewContext;
14 this.ViewPage &＃61; page;
15 this.RouteCollection &＃61; routeCollection;
16 }
17
18 public JqueryHelper(ViewContext viewContext, WebViewPage viewPage) : this(viewContext, viewPage, RouteTable.Routes) { }
19 }
20
21 public static class JqueryExtensions
22 {
23 public static JqueryHelper Jquery(this WebViewPage page)
24 {
25 var key &＃61; typeof(JqueryHelper);
26 var jquery &＃61; page.PageData[key] as JqueryHelper;
27 if (jquery &＃61;&＃61; null)
28 {
29 page.PageData[key] &＃61; jquery &＃61; new JqueryHelper(page.ViewContext, page);
30 }
31 return jquery;
32 }
33 }
34
35 public class JqueryValidations
36 {
37 public WebViewPage Page { get; private set; }
38 public JqueryValidations(WebViewPage page)
39 {
40 this.Page &＃61; page;
41 }
42 private Dictionary<string, Dictionary<string, object>> m_rules &＃61; new Dictionary<string, Dictionary<string, object>>();
43 private Dictionary<string, Dictionary<string, object>> m_message &＃61; new Dictionary<string, Dictionary<string, object>>();
44
45 public void Required(string name,string message)
46 {
47 this.AddRuleAndMessage(name, "required", true, message);
48 }
49
50 public void Email(string name, string message)
51 {
52 this.AddRuleAndMessage(name,"email",true,message);
53 }
54
55 public void Number(string name, string message)
56 {
57 this.AddRuleAndMessage(name, "number", true, message);
58 }
59 public void Range(string name,int min,int max, string message)
60 {
61 this.AddRuleAndMessage(name, "range", new int[] { min, max }, message);
62 }
63 public string ToScripts(string form)
64 {
65 JavascriptSerializer serializer &＃61; new JavascriptSerializer();
66 StringBuilder builder &＃61; new StringBuilder();
67
68 builder.Append("$(");
69 serializer.Serialize(form, builder);
70 builder.Append(").validate(");
71 serializer.Serialize(
72 new
73 {
74 rules &＃61; this.m_rules,
75 messages &＃61; this.m_message,
76 onkeyup &＃61; false
77 }, builder);
78 builder.Append(");");
79
80 return builder.ToString();
81 }
82
83 public ValidationElement Element(string name)
84 {
85 return new ValidationElement(name, this);
86 }
87 private void AddRuleAndMessage(string name, string rule, object value, string message)
88 {
89 if (!this.m_rules.ContainsKey(name))
90 {
91 this.m_rules[name] &＃61; new Dictionary<string, object>();
92 }
93 this.m_rules[name][rule] &＃61; value;
94
95 if (!string.IsNullOrEmpty(message))
96 {
97 if (!this.m_message.ContainsKey(name))
98 {
99 this.m_message[name] &＃61; new Dictionary<string, object>();
100 }
101 this.m_message[name][rule] &＃61; message;
102 }
103
104 }
105
106
107 }
108
109 public class ValidationElement
110 {
111 public ValidationElement(string name, JqueryValidations validations)
112 {
113 this.Name &＃61; name;
114 this.Validations &＃61; validations;
115 }
116
117 public string Name { get; private set; }
118
119 public JqueryValidations Validations { get; private set; }
120
121 public ValidationElement Required(string message)
122 {
123 this.Validations.Required(this.Name, message);
124 return this;
125 }
126
127 public ValidationElement Email(string message)
128 {
129 this.Validations.Email(this.Name, message);
130 return this;
131 }
132
133 public ValidationElement Number(string message)
134 {
135 this.Validations.Number(this.Name, message);
136 return this;
137 }
138
139 public ValidationElement Range(int min, int max, string message)
140 {
141 this.Validations.Range(this.Name, min, max, message);
142 return this;
143 }
144
145 }
146
147 public static class JQueryValidationExtensions
148 {
149 public static JqueryValidations Validations(this JqueryHelper jquery)
150 {
151 return jquery.Validations("(default)");
152 }
153
154 public static JqueryValidations Validations(this JqueryHelper jquery, string name)
155 {
156 var key &＃61; typeof(JqueryValidations) &＃43; "&＃43;" &＃43; name;
157 var page &＃61; jquery.ViewPage;
158 var validations &＃61; page.PageData[key] as JqueryValidations;
159
160 if (validations &＃61;&＃61; null)
161 {
162 page.PageData[key] &＃61; validations &＃61; new JqueryValidations(page);
163 }
164
165 return validations;
166 }
167 }
168
169 }

1 &＃64;{
2 Layout &＃61; null;
3 }
4 &＃64;using MvcWeb.Extensions
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