NET Caching Library Help
Set<T>(CacheItem,CacheItemPolicy) Method
Example 




KellermanSoftware.NetCachingLibrary Namespace > SmartCache Class > Set Method : Set<T>(CacheItem,CacheItemPolicy) Method
The item.
The policy.
Set a cache value with the same expiration policy for both the primary and secondary cache providers.
Syntax
'Declaration
 
Public Overloads Sub Set(Of T)( _
   ByVal item As System.Runtime.Caching.CacheItem, _
   ByVal policy As System.Runtime.Caching.CacheItemPolicy _
) 
'Usage
 
Dim instance As SmartCache
Dim item As System.Runtime.Caching.CacheItem
Dim policy As System.Runtime.Caching.CacheItemPolicy
 
instance.Set(Of T)(item, policy)
public void Set<T>( 
   System.Runtime.Caching.CacheItem item,
   System.Runtime.Caching.CacheItemPolicy policy
)
public: void Set<T>( 
   System.Runtime.Caching.CacheItem* item,
   System.Runtime.Caching.CacheItemPolicy* policy
) 
public:
void Setgeneric<typename T>
( 
   System.Runtime.Caching.CacheItem^ item,
   System.Runtime.Caching.CacheItemPolicy^ policy
) 

Parameters

item
The item.
policy
The policy.

Type Parameters

T
Example
//Create a Primary Memory Cache with a backing File Cache
string directory = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "KellermanSoftware", "NetCachingLibrary", "Tests");
SmartConfig config = new SmartConfig(new MemoryCacheProvider(), new FileCacheProvider(directory));
            
//Specify UserName and LicenseKey for Licensed Mode
//config.UserName = "my user name";
//config.LicenseKey = "my license key";
            
//Instantiate the cache
SmartCache cache = new SmartCache(config);
            
//Build parameters for the report
int month = DateTime.Now.Month;
int year = DateTime.Now.Year;
            
//Get the cache key based on the report parameters
string cacheKey = cache.BuildCacheKey("MonthlySalesReport", month, year);
            
//Attempt to load the report from the cache
List<ReportDetail> report = cache.Get<List<ReportDetail>>(cacheKey);
            
//Not found in the cache
if (report == null)
{
	//Load the report from the database
	report = ReportLogic.MonthlySalesReport(month, year);
            
	CacheItem item = new CacheItem(cacheKey, report, "Default");
	CacheItemPolicy policy = new CacheItemPolicy()
	{
		AbsoluteExpiration = DateTimeOffset.Now.AddMinutes(20),
		SlidingExpiration = SmartCache.NoSlidingExpiration
	};
            
	//Save to the cache with the same expiration for both the primary and secondary cache providers
	cache.Set<string>(item, policy);
}
'Create a Primary Memory Cache with a backing File Cache
Dim directory As String = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "KellermanSoftware", "NetCachingLibrary", "Tests")
Dim config As New SmartConfig(New MemoryCacheProvider(), New FileCacheProvider(directory))
            
'Specify UserName and LicenseKey for Licensed Mode
'config.UserName = "my user name";
'config.LicenseKey = "my license key";
            
'Instantiate the cache
Dim cache As New SmartCache(config)
            
'Build parameters for the report
Dim month As Integer = Date.Now.Month
Dim year As Integer = Date.Now.Year
            
'Get the cache key based on the report parameters
Dim cacheKey As String = cache.BuildCacheKey("MonthlySalesReport", month, year)
            
'Attempt to load the report from the cache
Dim report As List(Of ReportDetail) = cache.Get(Of List(Of ReportDetail))(cacheKey)
            
'Not found in the cache
If report Is Nothing Then
	'Load the report from the database
	report = ReportLogic.MonthlySalesReport(month, year)
            
	Dim item As New CacheItem(cacheKey, report, "Default")
	Dim policy As New CacheItemPolicy() With {
		.AbsoluteExpiration = DateTimeOffset.Now.AddMinutes(20),
		.SlidingExpiration = SmartCache.NoSlidingExpiration
	}
            
	'Save to the cache with the same expiration for both the primary and secondary cache providers
	cache.Set(Of String)(item, policy)
End If
Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

Reference

SmartCache Class
SmartCache Members
Overload List