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1.
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CacheµÄÌí¼Ó·½·¨ÓÐ
Add()»ò
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Cache.Add(
       KeyName,//
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       KeyValue,//
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       Dependencies,//
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       AbsoluteExpiration,//
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       SlidingExpiration,//
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       Priority,//
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       CacheItemRemovedCallback);//
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2.
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       »º´æ¿ÉÒÔÉèÖõÄʱЧÐÔ¿ÉÒÔͨ¹ý
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        CacheDependency fileDepends = new CacheDependency(Server.MapPath("Northwind.xml"));
         Cache.Insert("GridViewDataSet", dsGrid, fileDepends);
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string[] fileDependsArray = {Server.MapPath("Northwind.xml")};
string[] cacheDependsArray = {"Depend0", "Depend1", "Depend2"};
CacheDependency cacheDepends = new CacheDependency(fileDependsArray, cacheDependsArray);
Cache.Insert("GridViewDataSet", dsGrid, cacheDepends);
´ËÀýÉèÖÃÁËNorthwind.xmlÎļþÒÀÀµºÍ Depend0,depend1,Depend2»º´æÏî
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AbsoluteExpiration
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Cache.Insert("GridViewDataSet ", dsGrid, null, DateTime.Now.AddMinutes(3


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