Contains Method (SmartCache)

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function Contains( _
   ByVal key As System.String, _
   Optional ByVal regionName As System.String _
) As System.Boolean

'Usage
 
Dim instance As SmartCache
Dim key As System.String
Dim regionName As System.String
Dim value As System.Boolean
 
value = instance.Contains(key, regionName)

public System.bool Contains( 
   System.string key,
   System.string regionName
)

public: System.bool Contains( 
   System.string* key,
   System.string* regionName
)

public:
System.bool Contains( 
   System.String^ key,
   System.String^ regionName
)

Parameters

key: Key for the cache item
regionName: Name of the region

C#

//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;
            
//Load the report from the database
List<ReportDetail> report = ReportLogic.MonthlySalesReport(month, year);
            
//Get the cache key based on the report parameters
string cacheKey = cache.BuildCacheKey("MonthlySalesReport", month, year);
            
//Save the report to the cache to the Default Region
cache.Set(cacheKey, report);
            
//Contains will be true
Console.WriteLine(cache.Contains(cacheKey));

VB.NET

'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
            
'Load the report from the database
Dim report As List(Of ReportDetail) = ReportLogic.MonthlySalesReport(month, year)
            
'Get the cache key based on the report parameters
Dim cacheKey As String = cache.BuildCacheKey("MonthlySalesReport", month, year)
            
'Save the report to the cache to the Default Region
cache.Set(cacheKey, report)
            
'Contains will be true
Console.WriteLine(cache.Contains(cacheKey))

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

Reference

SmartCache Class
SmartCache Members