Delegate CacheDataNotificationCallback
Defines a callback method for notifying applications when an item is updated in the Cache.
Namespace:
Assembly: Alachisoft.NCache.Web.dll
Syntax
public delegate void CacheDataNotificationCallback(string key, CacheEventArg cacheEventArgs);Parameters
| Type | Name | Description |
|---|---|---|
| System.String | key | The cache key used to reference the item. |
| CacheEventArg | cacheEventArgs | The cache event arguments. |
Remarks
Since this handler is invoked every time an item is removed from the Cache, doing a lot of processing inside the handler might have an impact on the performance of the cache and cluster. It is therefore advisable to do minimal processing inside the handler.
Examples
The following example demonstrates how to use the CacheDataNotificationCallback class to notify an application when an item is updated to the application's Cache object. You could include this code in a code declaration block in the Web Forms page, or in a page code-behind file.
public static void OnCacheDataModification(string key, CacheEventArg args)
{
//
}
protected void Application_Start(object sender, EventArgs e)
{
try
{
NCache.InitializeCache("myCache");
CacheDataNotificationCallback dataNotificationCallback = new CacheDataNotificationCallback(OnCacheDataModification);
}
catch(Exception e)
{
}
}