Add a CacheItem to the cache asynchronously
Namespace: Alachisoft.NCache.Web.CachingAssembly: Alachisoft.NCache.Web (in Alachisoft.NCache.Web.dll) Version: 4.1.0.0 (4.1.0.0)
Syntax
C# |
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public Object AddAsync( string key, CacheItem item, DSWriteOption dsWriteOption, DataSourceItemsAddedCallback onDataSourceItemAdded ) |
Visual Basic |
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Public Function AddAsync ( _ key As String, _ item As CacheItem, _ dsWriteOption As DSWriteOption, _ onDataSourceItemAdded As DataSourceItemsAddedCallback _ ) As Object |
Visual C++ |
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public: Object^ AddAsync( String^ key, CacheItem^ item, DSWriteOption dsWriteOption, DataSourceItemsAddedCallback^ onDataSourceItemAdded ) |
Parameters
- key
- Type: System..::..String
The cache key used to reference the item.
- item
- Type: Alachisoft.NCache.Web.Caching..::..CacheItem
The item that is to be stored
- dsWriteOption
- Type: Alachisoft.NCache.Web.Caching..::..DSWriteOption
Options regarding updating data source
- onDataSourceItemAdded
- Type: Alachisoft.NCache.Web.Caching..::..DataSourceItemsAddedCallback
A delegate that, if provided, is called when item is added to data source.
Remarks
If CacheItem contains invalid values the related exception is thrown.
See CacheItem for invalid property values and related exceptions
Examples
The following example demonstrates how to add an item to the cache with a sliding expiration of 5 minutes, a priority of
high, and that notifies the application when the item is removed from the cache.
First create a CacheItem.
Then add CacheItem to the cache
CopyC#
CacheItem item = new CacheItem(timeStamp); item.SlidingExpiration = new TimeSpan(0,5,0); item.Priority = CacheItemPriority.High; item.ItemRemoveCallback = onRemove;
CopyC#
OnDataSourceItemAdded(IDictionary result) { ... } Cache cache = NCache.InitializeCache("myCache"); cache.AddAsync("timestamp", item, DSWriteOption.WriteBehind, new DataSourceItemsAddedCallback(OnDataSourceItemAdded));