Question

我正在使用CachedPartial html帮助程序来缓存该部分视图。

@Html.CachedPartial("PartialView", MyModel, 3600, true);

在我看来，我有以下情况：

@Html.CachedPartial("PartialView", MyModel, 3600, true);

@Html.CachedPartial("AnotherPartialView", MyModel1, 3600, true);

@Html.CachedPartial("PartialView", MyModel3, 3600, true); // I want to reuse partial view

由于CachedPartial ...

，似乎第一个和第三个视图完全相同

如何通过模型参数进行缓存局部化？

我尝试使用

@Html.CachedPartial("PartialView", MyModel, 3600, true, false, new ViewDataDictionary(MyModel3));

但同样的事情。

编辑：我使用了与DZL不同的方法，它可以正常工作

  public static IHtmlString CachedPartial( this HtmlHelper helper, string partialViewName, object model, string cacheKey = null )
  {
     if ( string.IsNullOrWhiteSpace( cacheKey ) ) {
        return helper.CachedPartial( partialViewName, model, AppSettings.PartialCachingSeconds, true );
     }

     Func<object, ViewDataDictionary, string> fc = ( o, v ) => cacheKey;

     return helper.CachedPartial( partialViewName, model, AppSettings.PartialCachingSeconds, true, contextualKeyBuilder: fc );
  }

然后

@Html.CachedPartial("PartialView", MyModel, "a_key");

@Html.CachedPartial("AnotherPartialView", MyModel1);

@Html.CachedPartial("PartialView", MyModel3, "another_key"); // I want to reuse partial view

Answer 1

如果您需要，您需要创建自己的using System; using System.Web.Mvc; using System.Web.Mvc.Html; using Umbraco.Web; using System.Web; using System.Runtime.Caching; public static class CachedPartialExtensions { public static IHtmlString MyCachedPartial( this HtmlHelper htmlHelper, string partialViewName, object model, int cachedSeconds, bool cacheByPage = false, string cacheKey = null, ViewDataDictionary viewData = null ) { var newCacheKey = "fpc-"; //prefix to know which keys to clear on page publish (in Bootstraper.cs file) newCacheKey += partialViewName; if (cacheByPage) { newCacheKey += "page-" + UmbracoContext.Current.PageId; } if (!string.IsNullOrEmpty(cacheKey)) { newCacheKey += "key-" + cacheKey; } var result = MemoryCache.Default.Get(newCacheKey) as MvcHtmlString; if(result == null) { result = htmlHelper.Partial(partialViewName, model, viewData); MemoryCache.Default.Add(new CacheItem(newCacheKey, result), new CacheItemPolicy { AbsoluteExpiration = DateTimeOffset.Now.AddSeconds(cachedSeconds) }); } return result; } }实现，如下所示：

@Html.MyCachedPartial("PartialView", Model, 60, cacheKey: "model1key", cacheByPage: true)
@Html.MyCachedPartial("PartialView", Model2, 60, cacheKey: "model2key", cacheByPage: true)

然后您将能够提供自己的缓存密钥：

CachedPartial

编辑：

从版本7开始，public static IHtmlString CachedPartial( this HtmlHelper htmlHelper, string partialViewName, object model, int cachedSeconds, bool cacheByPage = false, bool cacheByMember = false, ViewDataDictionary viewData = null, Func<object, ViewDataDictionary, string> contextualKeyBuilder = null);存在一个重载，允许在

中传递密钥

@Html.CachedPartial(
    "PartialView", 
    MyModel3, 
    3600, 
    cacheByPage: true,
    contextualKeyBuilder: (model, viewData) =>
    {
       return (model as MyViewModel).Id.ToString();
    });

用例就是：

Facebook token

使用Umbraco CachedPartial为不同的模型缓存局部视图

1 个答案: