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How to tell if current action is asynchronous?

Posted By:      Posted Date: April 10, 2011    Points: 0   Category :ASP.Net

I'm writing a global action filter and would like to determine if the currect action is asynchronous.  However the ActionExecutingContext doesn't expose any properties for me to make this determination.  I can get a handle on the controller if it is an AsyncController assume that the action is also asynchrous. However that doesn't guarantee that the current action is asynchronous since you can have a synchrouns action in a AsyncController.

We have a distributed team, so there is the potential for a filter to invoke a service asynchronously on a synchonous action.  This particular filter needs to access the session store, which is unavailable in this scenario.

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