Public Sub CreateMyOleDbCommand(connection As OleDbConnection, _
   queryString As String, parameters() As OleDbParameter)

    Dim command As New OleDbCommand(queryString, connection)
    command.CommandText = _
       "SELECT CustomerID, CompanyName FROM Customers WHERE Country = ? AND City = ?"
    command.Parameters.Add(parameters)

    Dim j As Integer
    For j = 0 To command.Parameters.Count - 1
       command.Parameters.Add(parameters(j))
    Next j

    Dim message As String = ""
    Dim i As Integer
    For i = 0 To command.Parameters.Count - 1
        message += command.Parameters(i).ToString() + ControlChars.Cr
    Next i
    Console.WriteLine(message)
End Sub

public void CreateMyOleDbCommand(OleDbConnection connection,
    string queryString, OleDbParameter[] parameters) 
{
    OleDbCommand command = new OleDbCommand(queryString, connection);
    command.CommandText = 
        "SELECT CustomerID, CompanyName FROM Customers WHERE Country = ? AND City = ?";
    command.Parameters.Add(parameters);

    for (int j=0; j<parameters.Length; j++)
    {
        command.Parameters.Add(parameters[j]) ;
    }

    string message = "";
    for (int i = 0; i < command.Parameters.Count; i++) 
    {
        message += command.Parameters[i].ToString() + "\n";
    }
    Console.WriteLine(message);
}