Hello Friends i am new to .net i am often getting the error " Object reference not set to an instance of an object." Can anyone explain me about that error with sample coding as a example

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Hello Friends i am new to .net i am often getting the error
" Object reference not set to an instance of an object." Can anyone explain me about that error with sample coding as a example . and how to rectify the error . please explain me with C# example

Posted 17-Sep-12 19:51pm

MurugappanCTS

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Bernhard Hiller 18-Sep-12 3:10am

Actually the most important thing to do is: learn to use the debugger of Visual Studio!

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Pandvi · Answer 1 · 2012-09-17T19:58:00

Solution 1

Firstly, You can check this blog by .NET teams: http://blogs.msdn.com/b/csharpfaq/archive/2004/05/06/why-do-i-get-the-error-object-reference-not-set-to-an-instance-of-an-object.aspx[^]
And then A discussion: http://social.msdn.microsoft.com/forums/en-US/netfxbcl/thread/05e4b05d-afb9-44ae-ae98-87f31199a3fb/[^]

Posted 17-Sep-12 19:58pm

Pandvi

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[no name] 18-Sep-12 2:39am

great one sir

Pandvi 18-Sep-12 3:05am

If it sloves your problem, please mark it as answer!

Gr8AmitTiwari · Answer 2 · 2012-09-17T20:35:00

Hello !

First try to use this link: http://stackoverflow.com/questions/8206810/object-reference-not-set-to-an-instance-of-an-object[^] for a quick reference.

Generally this exception occur when u didn't check any condition for null.Suppose u want some data to display on a page and u didn't check that this data is empty.

ex- if(txtname.text != null)
{
some code here........
}

in this case it doesn't give an exception.If u didn't check for null values then it gives an error.

I think u got my point.if not please let me know i will explain u in details.

Thanks.