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Hello everyone,

I have a project that contain air ticket booking.
When I run this project and i am going to booking.cs form and I type the booking no. then textbox accept this booking no. but when I leave this textbox then system give me above error

I am searched all the website such as stackoverflow.com, codeproject.com etc.
but i cant get any idea to resolve this error.

I stuck on this error for previous 15 days.

So please help me
My project become stop by this error

Thanks for any suggestion or answer.
Posted
Updated 18-Apr-14 20:57pm
v2
Comments
Ganesh KP 19-Apr-14 5:58am    
You need to provide some more information like your stack trace and put a break point and check what does the error actually and from where does it comes.

Its better if you could post the code.
ZurdoDev 19-Apr-14 8:16am    
You need to look at the code. Since we can't see your code how can we know what is wrong?
thatraja 21-Apr-14 7:58am    
Show code

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