NCache provides feature of Aggregate dependency to support multiple dependencies with a single cache item. The following code explains how to add AggregateCacheDependency with an item.

 

Product product=new Product();

product.ProductID=1002;

product.ProductName="Chang";

string key="Product:"+product.ProductID;

try

{

    //Initializing Aggregate Dependency; Item dependant on File and Key

    AggregateCacheDependency aggregateDependency = new AggregateCacheDependency();

    aggregateDependency.Dependencies.Add(new FileDependency("C:\\tempProductList.txt"));

    aggregateDependency.Dependencies.Add(new KeyDependency("Product:1001"));

 

    //Inserting item with AggregateCacheDependency

    cache.Insert(key, product, aggregateDependency, Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration, CacheItemPriority.Normal);

}

catch (OperationFailedException e)

{

    // handle exception

}

 

 

See Also

Cache Dependencies Overview | Custom Dependency | Synchronizing Cache with Relational Database | Adding Data with File and Key Dependencies | Synchronizing Cache with Custom Data Sources | Synchronize Data across Multiple Caches  | Add Dependency to the Existing Cached Item

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