OracleCommandBuilder.DeriveParameters , Gives Connection must be Opened.

Question

Hi,
I was trying to use OracleCommandBuilder.DeriveParameters method to derive paramaters of a StoredProcedure. When i run the following code it give me the following error.
Message :- "Connection must be open for this operation"
Stack Trace:-
" at Oracle.DataAccess.Client.OracleCommand.ExecuteNonQuery()\r\n at Oracle.DataAccess.Client.OracleCommandBuilder.DeriveParameters(OracleCommand command)\r\n at DeriveParam.Form1.button1_Click(Object sender, EventArgs e) in d:\\dal design\\deriveparam\\form1.cs:line 100"
Code
string Constr= "Data Source='ORCL',User Id='scott',Password='tiger'";
               OracleConnection Conn = new OracleConnection("Data Source=ORCL;User Id=Scott;Password=tiger");
               OracleCommand cmd = new OracleCommand();
               cmd.Connection=Conn;
cmd.CommandType=System.Data.CommandType.StoredProcedure;
               cmd.CommandText="Bank_data.B_GET_GE";
               Conn.Open();
               try
                    OracleCommandBuilder.DeriveParameters(cmd);
                    MessageBox.Show(cmd.Parameters.Count.ToString());
               catch(Exception ex)
                    Conn.Close();
                    MessageBox.Show(ex.StackTrace.ToString());
Thanks
Sundeep

Answer 1

Did you get a resolution to this?
Using your code with ODP.NET 10.1.0.4.0 and database 10.1.0.4.0 I can not reproduce...
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