Global Open Connection to SQL Server in .Net C# or VB.Net

using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Configuration;
using System.Data;
using System.Collections;

namespace DataAccess
{
    public class SQLCommands
    {
        public static String DefaultConnectionName()
        {
            return System.Web.Configuration.WebConfigurationManager.ConnectionStrings[0].Name;
        }
        public static SqlCommand OpenCommand(String StoredProcedure, List<sqlparameter> sqlParameters, String ConnectionName)
        {
            ConnectionStringSettings settings = ConfigurationManager.ConnectionStrings[ConnectionName ?? DefaultConnectionName()];
            if (settings == null) throw new Exception("No connectionstring found");
            SqlCommand cmd = new SqlCommand(StoredProcedure, new SqlConnection(settings.ConnectionString));
            cmd.CommandType = CommandType.StoredProcedure;
            if (null != sqlParameters)
            {
                CheckParameters(sqlParameters);
                cmd.Parameters.AddRange(sqlParameters.ToArray());
            }
            cmd.CommandTimeout = 60; // 1 minute
            cmd.UpdatedRowSource = UpdateRowSource.None;
            cmd.Connection.Open();
            return cmd;
        }
        private static void CheckParameters(List<sqlparameter> sqlParameters)
        {
            foreach (SqlParameter parm in sqlParameters)
            {
                if (null == parm.Value)
                    parm.Value = DBNull.Value;
            }
        }
        public static void CloseCommand(SqlCommand sqlCommand)
        {
            if (null != sqlCommand && sqlCommand.Connection.State == ConnectionState.Open)
                sqlCommand.Connection.Close();
        }
    }
}
</sqlparameter></sqlparameter>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
namespace DataAccess
{
    public class ToDataBase
    {
        /// <summary>
        /// Shoot the DATA
        /// </summary>
        /// <param name="StoredProcedure"></param>
        /// <param name="parms">List<sqlparameter></sqlparameter></param>
        /// <param name="ConnectionName"></param>
        public static Int32 InsertData(String StoredProcedure, List<sqlparameter> parms, String ConnectionName)
        {
            SqlCommand myCommand = null;
            Int32 affectedRows = 0;
            try
            {
                myCommand = SQLCommands.OpenCommand(StoredProcedure, parms, ConnectionName);
                affectedRows = myCommand.ExecuteNonQuery();
            }
            catch (Exception err)
            {
                // do something with the error
                string error = err.ToString();
            }
            finally
            {
                SQLCommands.CloseCommand(myCommand);
            }
            return affectedRows;
        }
    }
}
</sqlparameter>