SessionStateStoreProviderBase.SetItemExpireCallback Method
Definition
Important
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Sets a reference to the SessionStateItemExpireCallback delegate for the Session_OnEnd
event defined in the Global.asax file.
public:
abstract bool SetItemExpireCallback(System::Web::SessionState::SessionStateItemExpireCallback ^ expireCallback);
public abstract bool SetItemExpireCallback (System.Web.SessionState.SessionStateItemExpireCallback expireCallback);
abstract member SetItemExpireCallback : System.Web.SessionState.SessionStateItemExpireCallback -> bool
Public MustOverride Function SetItemExpireCallback (expireCallback As SessionStateItemExpireCallback) As Boolean
Parameters
- expireCallback
- SessionStateItemExpireCallback
The SessionStateItemExpireCallback delegate for the Session_OnEnd
event defined in the Global.asax file.
Returns
true
if the session-state store provider supports calling the Session_OnEnd
event; otherwise, false
.
Examples
For an example of a session-state store provider implementation, see Implementing a Session-State Store Provider.
Remarks
The SessionStateModule object calls the SetItemExpireCallback method when the module is initialized to determine whether calls to the Session_OnEnd
event are supported by the SessionStateStoreProviderBase implementation and to associate the SessionStateItemExpireCallback delegate with the Session_OnEnd
event.
Custom session-state store provider implementers should use the SetItemExpireCallback method to inform the SessionStateModule object whether calls to the Session_OnEnd
event are supported and to set a local reference to the SessionStateItemExpireCallback delegate supplied by the expireCallback
parameter. The custom implementation must decide when the local SessionStateItemExpireCallback delegate will be called. For example, the delegate could be called during the call to the RemoveItem method, which is called when a session is abandoned.
Applies to
See also
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