ADO Database Visual C++ .NET

#include "stdafx.h"
using namespace System;
using namespace System::Data;
using namespace System::Data::SqlClient;
using namespace System::Configuration;
void main()
{
    SqlConnection ^connection = gcnew SqlConnection();
    connection->ConnectionString = "SQLConnection";
    try{
       SqlCommand ^cmd = gcnew SqlCommand();
       cmd->Connection = connection;
       connection->Open();
       cmd->CommandType = CommandType::Text;
       cmd->CommandText = "SELECT COUNT(*) FROM Authors";
       Object ^NumAuthors = cmd->ExecuteScalar();
       Console::WriteLine("The number of Authors are {0}", NumAuthors);
       cmd->CommandType = CommandType::Text;
       cmd->CommandText = "SELECT SUM(AuthorID) FROM Authors";
       Object ^UselessNum = cmd->ExecuteScalar();
       Console::WriteLine("The Sum of AuthorIDs for fun is {0}", UselessNum);
    }
    catch (SqlException ^e)
    {
        Console::WriteLine("No connection the following error occurred: {0}",
            e->Message);
    }
    finally
    {
        connection->Close();
    }
}