'System.Data.SqlClient.SqlConn...

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This error occurred in asp.net & C# program?

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System.Data.SqlClient.SqlConnection' in Assembly 'System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable

what is the reason for this type of error occurred?

Posted 28-Aug-14 21:13pm

RajeeshMenoth

Updated 28-Aug-14 21:17pm

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Gihan Liyanage 29-Aug-14 3:28am

Better if you can post the SQL Connection class.

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Gihan Liyanage · Answer 1 · 2014-08-28T21:27:00

Solution 1

Mark your connection class as serializable

C#

[Serializable()]
public class YourClass
{
}

Posted 28-Aug-14 21:27pm

Gihan Liyanage

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Gihan Liyanage 15-Sep-14 6:21am

Did you got a solution from my support, I can see you have not accepted any answer.If you are ok with this answer plz accept it. Then any user having same problem can identified it has solved the problem..

HNDandekar 28-Jun-21 13:19pm

No. Error still continue.

HNDandekar 28-Jun-21 13:20pm

Type 'System.Data.SqlClient.SqlConnection' in Assembly 'System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable.

Getting this error, I have defined this in a separate class file