Question

I build my solution in visual studio(successfull) and I am trying to run it but for some reason at the following line of code it was throwing the exception I went several articles but there was no exact solution how this could be handled

public static int GetCurrentPolicyClassId()
    {
        **int policyClassId = (int) HttpContext.Current.Session[AppConstants.SK_POLICYCLASSID];**
        return policyClassId;
    }

Answer 1

One of the values in the chain you’ve called is null. You just need to check before getting the values:

if(HttpContext != null && 
   HttpContext.Current != null &&
   HttpContext.Current.Session != null &&
   HttpContext.Current.Session[AppConstants.SK_POLICYCLASSID] != null)
{
    // Get the value here.
}
else
{
    // Something was null. Either set a default value or throw an Exception
}