ADO.NET in a Nutshell

This enumeration specifies the IDataParameter.Direction property. Input , the default, indicates a parameter passed into a stored procedure. Output specifies a parameter passed back from a stored procedure. InputOutput specifies a parameter that is passed in to and back from the stored procedure. Finally, ReturnValue specifies a parameter that is the return value of the stored procedure.

public enum ParameterDirection { Input = 1 , Output = 2 , InputOutput = 3 , ReturnValue = 6 }

Hierarchy

System.Object System.ValueType System.Enum(System.IComparable, System.IFormattable , System.IConvertible) ParameterDirection

Returned By

IDataParameter.Direction , System.Data.OleDb.OleDbParameter.Direction , System.Data.OracleClient.OracleParameter.Direction , System.Data.SqlClient.SqlParameter.Direction

Passed To

IDataParameter.Direction , System.Data.OleDb.OleDbParameter.{Direction , OleDbParameter( )} , System.Data.OracleClient.OracleParameter.{Direction , OracleParameter( )} , System.Data.SqlClient.SqlParameter.{Direction , SqlParameter( )}