CODEWITHSUNDEEP
asp.netnullhttpcontextasp.net-mvc-5.2
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Reputation: 364

Is it possible that an ASP.NET httpContextBase ever be null? or Request? or UserAgent?

I'm getting a bug in a production server. I know which line is, but I do not know which would be the one that is complaining of a "Object reference not set to an instance of an object." Something is null:

public string GetAgentType(HttpContextBase httpContextBase)
{
  try
  {
    string userAgent = httpContextBase.Request.UserAgent.ToLower();
    /*some code to return the agent type*/
  }
  catch(Exception ex)
  {
    /*..Log exception logic..*/  
  }
}

The method is called with the injected parameter ControllerContext.HttpContext from a controller class.

"string userAgent = httpContextBase.Request.UserAgent.ToLower();"

As I said not pretty sure which would be null; httpContextBase? Request? or UserAgent? or in which cases one of them could be null?

Upvotes: 0

Views: 131

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