我是一个ASP.NET MVC 3网站的助手,使用自定义路由来指定URL中的语言,如下所示:
routes.MapRoute("Default", "{culture}/{controller}/{action}/{id}",
new { controller = "Home", action = "Index", culture = "en", id = UrlParameter.Optional });
我的基础控制器会在其OnActionExecuting事件中适当设置当前线程的文化,如下所示:
protected override void OnActionExecuting(ActionExecutingContext filterContext)
{
var culture = filterContext.RouteData.Values["culture"] ?? "en";
var cultureInfo = CultureInfo.GetCultureInfo((string)culture);
Thread.CurrentThread.CurrentCulture = cultureInfo;
Thread.CurrentThread.CurrentUICulture = cultureInfo;
base.OnActionExecuting(filterContext);
}
每当我需要在视图中使用特定于某个地区的字符串时,我会适当地引用资源:
<img src="@Url.Content(Resources.Paths.ChallengeLogo)" alt="@Resources.Strings.AltChallengeLogo" class="logo" />
然而,对于图片来说,URL(src =“ ...”)将遵循约定“〜/ Content / Culture / Images / Whatever.jpg”,我不想手动维护每个图像位置的资源文件。简而言之,我更喜欢做的是:
<img src="@Url.Content("Images/ChallengeLogo.png")" alt="@Resources.Strings.AltChallengeLogo" class="logo" />
在这种情况下,Url.Content方法会应用路径约定,并将src属性值转换为例如:
/Content/en-US/Images/ChallengeLogo.png
/Content/en-GB/Images/ChallengeLogo.png
/Content/de/Images/ChallengeLogo.png
etc...
我不一定非要使用Url.Content。我很乐意为此创建一个扩展方法,但我不确定我是否采取了最佳方法。这里的标准方法是什么?
编辑:最终我创建了一个辅助程序。该辅助程序具有检查当前文化路径是否存在或必要时回退到父/默认文化的附加好处。以下是代码:
private static CultureInfo _defaultCulture = CultureInfo.GetCultureInfo("en");
public static string Localized(this UrlHelper url, string pathTemplate)
{
var server = url.RequestContext.HttpContext.Server;
var culture = Thread.CurrentThread.CurrentUICulture;
var localizedPath = string.Format(pathTemplate, culture.Name);
var physicalPath = server.MapPath(localizedPath);
while (!File.Exists(physicalPath) && culture.Parent != null)
{
culture = culture.Parent;
localizedPath = string.Format(pathTemplate, culture.Name);
physicalPath = server.MapPath(localizedPath);
}
if (!File.Exists(physicalPath))
localizedPath = string.Format(pathTemplate, _defaultCulture.Name);
return url.Content(localizedPath);
}
在我的看法中,我可以按照以下方式使用这个辅助工具:
<div class="toolbox">
<a href="#" class="button register">
<img src="@Url.Localized("~/Content/Localized/{0}/Images/Button_Register.png")"
alt="@Resources.Strings.AltRegisterButton" /></a>
<a href="#" class="button login">
<img src="@Url.Localized("~/Content/Localized/{0}/Images/Button_Login.png")"
alt="@Resources.Strings.AltLoginButton" /></a>
</div>