# ASP.NET 4 Beta 1:网络形式运行扩展方法
2010-03-14T00:00
当我们在 ASP.NET 4 Beta 1 中加入网络形式路径时, 我们没有机会加入一些方法,
注:以下代码与我们添加的ASP.NET 4Beta 2的代码 " 类似 " 。 \*那,*\* 代码的质量要高得多,但这只是一个样本!
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1: using System;
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```
2: using System.Collections.Generic;
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```
3: using System.Linq;
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```
4: using System.Web;
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```
5: using System.Web.Routing;
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6:
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```
7: public static class RouteExtensions
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8: {
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9: public static string GetUrlForRoute(this System.Web.UI.Page page, string routeName, RouteValueDictionary parameters)
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10: {
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```
11: VirtualPathData vpd= RouteTable.Routes.GetVirtualPath(null, routeName, parameters);
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12: return vpd.VirtualPath;
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13: }
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14: public static string GetUrlForRoute(this System.Web.UI.Page page, RouteValueDictionary parameters)
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```
15: {
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16: VirtualPathData vpd = RouteTable.Routes.GetVirtualPath(null, parameters);
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17: return vpd.VirtualPath;
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18: }
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19:
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```
20: public static void IgnoreRoute(this RouteCollection routes, string url)
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21: {
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22: routes.IgnoreRoute(url, null);
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23: }
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24:
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25: public static void IgnoreRoute(this RouteCollection routes, string url, object constraints)
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26: {
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27: if (routes == null)
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28: {
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29: throw new ArgumentNullException("routes");
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30: }
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31: if (url == null)
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32: {
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33: throw new ArgumentNullException("url");
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34: }
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```
35: IgnoreRouteInternal internal3 = new IgnoreRouteInternal(url);
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```
36: internal3.Constraints = new RouteValueDictionary(constraints);
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37: IgnoreRouteInternal item = internal3;
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```
38: routes.Add(item);
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39: }
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40:
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```
41: public static Route MapRoute(this RouteCollection routes, string name, string url, string physicalFile)
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42: {
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43: return routes.MapRoute(name, url, physicalFile, null, null);
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44: }
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45:
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46: public static Route MapRoute(this RouteCollection routes, string name, string url, string physicalFile, object defaults)
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47: {
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48: return routes.MapRoute(name, url, physicalFile, defaults, null);
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49: }
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50:
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```
51: public static Route MapRoute(this RouteCollection routes, string name, string url, string physicalFile, string[] namespaces)
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52: {
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53: return routes.MapRoute(name, url, null, null, namespaces);
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54: }
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55:
```
```
56: public static Route MapRoute(this RouteCollection routes, string name, string url, string physicalFile, object defaults, object constraints)
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57: {
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58: return routes.MapRoute(name, url, physicalFile, defaults, constraints, null);
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59: }
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60:
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61: public static Route MapRoute(this RouteCollection routes, string name, string url, string physicalFile, object defaults, string[] namespaces)
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62: {
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63: return routes.MapRoute(name, url, physicalFile, defaults, null, namespaces);
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64: }
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65:
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```
66: public static Route MapRoute(this RouteCollection routes, string name, string url, string physicalFile, object defaults, object constraints, string[] namespaces)
```
```
67: {
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```
68: if (routes == null)
```
```
69: {
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70: throw new ArgumentNullException("routes");
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71: }
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```
72: if (url == null)
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```
73: {
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```
74: throw new ArgumentNullException("url");
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75: }
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```
76: if (physicalFile == null)
```
```
77: {
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```
78: throw new ArgumentNullException("physicalfile");
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```
79: }
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```
80: Route route2 = new Route(url, new PageRouteHandler(physicalFile));
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```
81: route2.Defaults = new RouteValueDictionary(defaults);
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```
82: route2.Constraints = new RouteValueDictionary(constraints);
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```
83: Route item = route2;
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```
84: if ((namespaces != null) && (namespaces.Length > 0))
```
```
85: {
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```
86: item.DataTokens = new RouteValueDictionary();
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```
87: item.DataTokens["Namespaces"] = namespaces;
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88: }
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```
89: routes.Add(name, item);
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```
90: return item;
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91: }
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92:
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93: // Nested Types
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```
94: private sealed class IgnoreRouteInternal : Route
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95: {
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96: // Methods
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```
97: public IgnoreRouteInternal(string url)
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98: : base(url, new StopRoutingHandler())
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99: {
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100: }
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101:
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102: public override VirtualPathData GetVirtualPath(RequestContext requestContext, RouteValueDictionary routeValues)
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103: {
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104: return null;
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105: }
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106: }
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107: }
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108:
```
那么,你如何使用这些方法?
这些扩展增加了一些简单的方法:
### 绘图绘图
这些方法为界定网络形式路径提供了捷径。
路由集合. MapRoute( 字符串名称、 字符串 URL、 字符串物理文件) ;
例如,绘制您现在可以做的简单路径图 :
路线表. Routes. MappROute (“Production Details Route”、“产品/{productid}”、“~/productionDetails.aspx”);
还有几种变量, 允许定义违约等
路由集合. MapRoute( 字符串名称、 字符串 URL、 字符串物理文件、 对象默认) ;
路由集合. MapRoute( 字符名、 字符串 URL、 字符串物理页、 对象默认值、 字符串)[命名空间);
### GetoutruutForUrl 配置工具
GetUrlForroute( 字符串路径Name, 路线估价参数) ;
使用一个有特定名称的路线和路由估价词汇, 包含多个参数, 将会给您返回一个包含要使用的 Url 的字符串。 在数据化应用程序中非常有用 !
例如,
```
```
GetUrlForROUT( 滚动价位参数) ;
同样的事情,但自动匹配 路线估价参数相对于路线
### 忽略( 忽略)
允许您定义URL( 用于升级 WebForms Apps ) 。 URL( 可用于升级 WebForms Apps )
路线集合. IgnoreROute( 字符串 URL) ;
路线集合. IgnoreRoute( 字符串 URL, 对象限制);