C# 异步连接Sql Server数据库的方法,.net最新版提供了await方法,可以使我们可以很容易实现到数据库的异步连接
readonly string ConnectionString = "Data Source=database_server_name;Initial Catalog=Store;Integrated Security=True";
        protected async void ExecuteCommandAsync()
        {
 
            using (SqlConnection con = new SqlConnection(ConnectionString))
            {
                await con.OpenAsync();
            }
        }




