Caching

Posted Date: 29 Nov 2008	Resource Type: Code Snippets	Category: ASP.NET WebForms
Author: Arun Jacob	Member Level: Gold
Rating:	Points: 10

Caching can be mainly classified as,

1.Page Output Caching
2.Object Caching

1.Page Output Caching

we can cache page output means we can cache rendered html so that no need to render html again.So it'll be taken from the cache.Its useful for pages with static content.For user controls we can use fragment caching.so in a page rendered html for user controls will be taken from the cache instead of whole page.


<%@ OutputCache VaryByParam="*" Duration="5" %>

2.Object caching

we can cache objects in the cache so that data will be taken from the cache instead of from database.we can set dependency for caching like file dependency,sql dependency.


if (Cache["Key"] != null)
            return Cache["Key"] as object;
        else
            Cache["Key"] = GetFromDataBase();


        if (Cache["Key"] != null)
            return Cache["Key"] as object;
        else
            Cache.Insert("Key", GetFromDataBase());

:-)

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