Object reference not set to an instance of an object

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Object reference not set to an instance of an object. I got this error message and can't find a simple answer on the internet. Thanks for any help that you can give me.

Posted 28-May-12 6:10am

Al Yambo

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[no name] 28-May-12 12:17pm

Strange, I get 9.630.000 hits on google. And they are all so complicated? Perhaps you should look up the words 'reference type' and the keyword 'new'.

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Sander Rossel · Answer 1 · 2012-05-28T06:18:00

The answer is right there... You have an Object reference which is not set to an instance of an object...
To fix it assign an Object to the reference.
No one here can help you because you have not posted any code, but for a general idea consider the following.

C#

Object obj = null;
obj.ToString(); // Crashes, because you can't call ToString on null!

Object obj = new Object(); // Actually assigning an instance (created with the new keyword) fixes the problem!
obj.ToString();

By the way, the internet is full with this stuff. We get this question at least weekly. Who would have thunk it?[^]

Abhinav S · Answer 2 · 2012-05-28T06:42:00

Solution 2

You are trying to access an attribute of an object that is null.

It is always a good idea to debug your source code. This will easily help you identify and solve such type of errors.

Posted 28-May-12 6:42am

Abhinav S

v2

Comments

Sergey Alexandrovich Kryukov 28-May-12 14:26pm

Correct, a 5.
--SA

Abhinav S 29-May-12 2:02am

Thank you.