Strange Problem With ShowDialog

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hi my friends

i has created many c# application until Now , that for prevent some bugs used showdialog() to show forms .

but in last two application i get strange problem when i want show some form with showDialog method,

whereas show method is ok .

i get error like "Object refrence not set ..." on line that ShowDialog Method Defined .

why is Occured And How i can Fix it ?

Thanks guys

best

Posted 10-Oct-14 20:28pm

Esmaeil Ebrahimi

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Manu Prasad 11-Oct-14 2:40am

Can you attach the area of your code thrown the Exception...

Neetin_1809 11-Oct-14 15:34pm

Hello ,
I Think that you have a form twice may be. Or there can be some type of arguments needs to be passed but not able to pass . Try to identify the flow in which the error is being generated & debug it. Surround your Code With Try Catch block as much as possible

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Mehdi Gholam · Answer 1 · 2014-10-10T20:39:00

Solution 1

Debug your application and see where you are using a null object reference.

Posted 10-Oct-14 20:39pm

Mehdi Gholam

Comments

[no name] 11-Oct-14 3:13am

unfortunately this error is random , sometime is not appear , and sometime is occur

Mehdi Gholam 11-Oct-14 3:21am

Then add logging to your application and log the stack trace for the exception which will give you a good place to start debugging from.

You can use log4net or my article below :

http://www.codeproject.com/Articles/136118/Mini-Drop-in-Replacement-for-log-net