ASP.NET MVC最佳实践（1）

1.创建UrlHelper类的扩展方法，生成相对路径URL

请避免将控制器、行为、或者路由名称作为字符串到处传递，创建UrlHelper的扩展方法来封装它们，例如：

UrlHelper类的扩展方法

1 public static class UrlHelperExtension
2 {
3 public static string Home( this UrlHelper helper)
4 {
5 return helper.Content( " ~/ " );
6 }
7 public static string SignUp( this UrlHelper helper)
8 {
9 return helper.RouteUrl( " Signup " );
10 }
11 public static string Dashboard( this UrlHelper helper)
12 {
13 return Dashboard(helper, StoryListTab.Unread);
14 }
15 public static string Dashboard( this UrlHelper helper, StoryListTab tab)
16 {
17 return Dashboard(helper, tab, OrderBy.CreatedAtDescending, 1 );
18 }
19 public static string Dashboard( this UrlHelper helper, StoryListTab tab, OrderBy orderBy, int page)
20 {
21 return helper.RouteUrl( " Dashboard " , new { tab = tab.ToString(), rderBy = orderBy.ToString(), page });
22 }
23 public static string Update( this UrlHelper helper)
24 {
25 return helper.RouteUrl( " Update " );
26 }
27 public static string Submit( this UrlHelper helper)
28 {
29 return helper.RouteUrl( " Submit " );
30 }
31 }
32  

这样的话，您就可以在视图中这样来使用：

< a href ="<%= Url.Dashboard() %>" > Dashboard </ a >
< a href ="<%= Url.Profile() %>" > Profile </ a >

而不是这样: 

<% = Html.ActionLin ( " Dashboard " , " Dashboard " , " Story " ) %>
< a href ="<%= Url.RouteUrl(" Profile")% > ">Profile </ a >

并且在控制器中我能这么用：

return Redirect
(
Url.Dashboard
(
StoryListTab.Favorite,
OrderBy.CreatedAtAscending,
1
)
)；

而不是这样:

return RedirectToAction
(
" Dashboard " ,
" Story " ,
new { tab = StoryListTab.Favorite, rderBy = OrderBy.CreatedAtAscending, page = 1 }
);

转载于:https://www.cnblogs.com/200831856/archive/2009/12/08/ASP-NET-MVC-UrlHelper-KuoZhan-01.html