Losing contents of HttpContext.Current.Cache ???

[Guest]

Here is the problem:

In Application_Start() I am setting the cache thus:

HttpContext.Current.Cache["MyObj"] = myObj;

In a subsequent page request, I am accessing the cache thus:

MyObj myObj = HttpContext.Current.Cache["MyObj"] as MyObj;

Sometimes myObj is null. How can this be?
thanks
Graham

 

[Dave Sexton]

Hi Graham,

Trying calling the Add method instead of using the indexer and explicitly set the expiration arguments to the desired values.