I’ve had an asp.net website running live on our intranet for a couple of weeks now. I just got an email from my application_error emailer method with an unhandled exception.
I have twice now seen a NullReferenceException logged from a Production ASP.NET MVC 4 web application – and logged on the wrong line. Not wrong by a line or two (like you would get with a PDB mismatch), but wrong by the length of the entire controller action. Example:
I have this code:
In my asp.net program.I set one protected list.And i add a value in list.But it shows Object reference not set to an instance of an object error protected List<string> list; protected void Page_Load(object sender, EventArgs e) { list.Add("hai"); } How to solve this error? Answers: Thank you for visiting the Q&A section on Magenaut. Please … Read more
I want to check that session is null or empty i.e. some thing like this:
I’m trying to determine if a Session variable exists, but I’m getting the error: