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Violation of PRIMARY KEY constraint 'PK_postion'. Cannot insert duplicate key in object 'dbo.StudentApplication'. The duplicate key value is (10).
The statement has been terminated.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: Violation of PRIMARY KEY constraint 'PK_postion'. Cannot insert duplicate key in object 'dbo.StudentApplication'. The duplicate key value is (10).
The statement has been terminated.

Source Error: