Object reference not set to an instance of an object

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Why do i see this error when i open a winform in design view?
it comes in a blue page:

Object reference not set to an instance of an object

Posted 31-Jul-10 21:01pm

Pooyan Behroozfar

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Pooyan Behroozfar 1-Aug-10 5:46am

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Sandeep Mewara · Answer 1 · 2010-07-31T21:09:00

Solution 1

Object reference not set to an instance of an object
This simply means you are trying to access certain property of an object that is NULL.

Use DEBUGGER, and see which line is throwing this error. Check the object value for NULL before using any of it's property.

Posted 31-Jul-10 21:09pm

Sandeep Mewara

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Sandeep Mewara 1-Aug-10 5:24am

Surely you are not putting it at right place. Check the full stack trace of the error and you might get it where it is. As said, the reason is accessing a property of NULL object. Check if anything like that is there.

Pooyan Behroozfar 1-Aug-10 5:47am

i didn't write any code