someone..please tell me what is wrong with my code? i get an error when trying to open the connection. but in my second form i could connect to the database. i just dont get what is my mistake in here...

OracleCommand insert1 = new OracleCommand("insert into customer(cusnum, cusdt, cusid, cusstatus, cuscode, cusname, cussex) values (:p1, :p2, :p3, :p4, :p5, :p6, :p7)");

insert1.Connection = new OracleConnection(oracle);

OracleCommand insert2 = new OracleCommand("insert into request(reqnum, reqcode, reqname) values(:p8, :p9, :p10)");

insert2.Connection = new OracleConnection(oracle);

OracleParameter p1 = new OracleParameter(":p1", OracleType.Number);

p1.Value = txt1.Text;

OracleParameter p2 = new OracleParameter(":p2", OracleType.DateTime);

p2.Value = txt2.Text;

OracleParameter p3 = new OracleParameter(":p3", OracleType.VarChar);

p3.Value = txt3.Text;

OracleParameter p4 = new OracleParameter(":p4", OracleType.VarChar);

p4.Value = txt4.Text;

OracleParameter p5 = new OracleParameter(":p5", OracleType.VarChar);

p5.Value = txt5.Text;

OracleParameter p6 = new OracleParameter(":p6", OracleType.VarChar);

p6.Value = txt6.Text;

OracleParameter p7 = new OracleParameter(":p7", OracleType.VarChar);

p7.Value = txt7.Text;

OracleParameter p8 = new OracleParameter(":p8", OracleType.Number);

p8.Value = txt8.Text;

OracleParameter p9 = new OracleParameter(":p9", OracleType.VarChar);

p9.Value = txt9.Text;

OracleParameter p10 = new OracleParameter(":p10", OracleType.VarChar);

p10.Value = txt10.Text;

insert1.Parameters.Add(p1);

insert1.Parameters.Add(p2);

insert1.Parameters.Add(p3);

insert1.Parameters.Add(p4);

insert1.Parameters.Add(p5);

insert1.Parameters.Add(p6);

insert1.Parameters.Add(p7);

insert2.Parameters.Add(p8);

insert2.Parameters.Add(p9);

insert2.Parameters.Add(p10);

try

{

insert1.Connection.Open();

insert1.ExecuteNonQuery();

insert2.Connection.Open();

insert2.ExecuteNonQuery();

}

catch

{

MessageBox.Show("There is no connection to the Oracle database.");

}

finally{}

insert1.Connection.Close();

insert2.Connection.Close();