How to Access the Return Value of a Function

Hi,
How do I access the return value when calling an Oracle function from .NET using Oracle.DataAccess.Client? The function returns an integer of 0, 1 or 99.
Dim db_command_oracle As New OracleCommand()
db_command_oracle.Connection = db_connection_oracle
db_command_oracle.CommandType = CommandType.StoredProcedure
db_command_oracle.CommandText = "swsarsi.import_appointments"
Dim ret_value As New OracleParameter()
ret_value.OracleDbType = OracleDbType.Int32
ret_value.Direction = ParameterDirection.ReturnValue
ret_value.Size = 2
ret_value.OracleDbType = OracleDbType.Int32
db_command_oracle.Parameters.Add(ret_value)
Dim IN_student_id As New OracleParameter()
IN_student_id.OracleDbType = OracleDbType.Varchar2
IN_student_id.Direction = ParameterDirection.Input
IN_student_id.Size = 10
IN_student_id.Value = student_id
db_command_oracle.Parameters.Add(IN_student_id)
db_command_oracle.ExecuteNonQuery()
messagebox.show(ret_value) ?????

Your ODP.NET code looks correct. What error are you seeing?
One thing that will definitely generate an error is that .NET message boxes require that strings be displayed. ret_value is a parameter object. You need to access its value and convert it to a string. At a minimum, you need to change that.

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http://deneskubicek.blogspot.com/
http://htmldb.oracle.com/pls/otn/f?p=31517:1
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Use OUT paramter to pass values from called procedure.
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For sample coding please mail
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I said :
- A) you should copy the main program without to copy
     includes, so when the systems ask you which objects
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So you'll have a new program which uses the same includes of the standard program.
- B) in your z-program you find the point where you should insert your code: you'll have two cases:
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For example:
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Message was edited by: max bianchi
Message was edited by: max bianchi

How to Access the Return Value of a Function

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