Object reference not set to an instance of an object

Question

Hello am calling from a class to test my product however i keep getting this error: "Object reference not set to an instance of an object."

Testing:

global::OfficeSystem.Employees employees = new OfficeSystem.Employees();

employees.Delete(Convert.ToInt64("17")); <--- Primary Key
employees.GetEmployeeByOfficeID(Convert.ToInt64("6"));

What is the problem here?

We'd need to see what employees.Delete and employees.GetEmployeeByOfficeID do. — James Michael Hare, Apr 14 '11 at 15:38
You'll need to post the stack trace - none of the calls there can navigate over a null pointer. — David Neale, Apr 14 '11 at 15:39
We're going to need a tad more information here. What line is it occurring on, have you verified a new instance of `Employees` is being created, etc. — Brad Christie, Apr 14 '11 at 15:40

score 1 · Answer 1 · answered Apr 14 '11 at 15:40

1

It sounds like for what ever reason you are not instantiating your object. I suggest run you code in debug and add a watch on employees to make sure its not zero. Hope that helps.

answered Apr 14 '11 at 15:40

Chris

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`employees` is getting instantiated in the first line - it is not null. – David Neale Apr 14 '11 at 15:45

score 0 · Answer 2 · answered Apr 14 '11 at 15:39

0

This simply means you are using an object that is null. Accessing a member on null is never valid.

I'm not sure which line is causing the error. Is it the one that says "Primary Key"? If so, could employees be null? It should be extremely trivial to find out using the debugger.

If needed, check for null before using the object to prevent this error.

answered Apr 14 '11 at 15:39

Jonathan Wood

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employees is getting instantiated in the first line - it is not null – David Neale Apr 14 '11 at 15:45

Object reference not set to an instance of an object

2 Answers2