Dictionary jako parametry funkcji SQL

        public static void RunStoredProcedureParam(string ProcedureName, Dictionary<string, string> parameters = null)
        {
            using (SqlConnection objConn = CreateConnection())
            {
                SqlCommand command = new SqlCommand(ProcedureName, objConn);
                try
                {
                    command.CommandType = CommandType.StoredProcedure;

                    if (parameters != null)
                    {
                        foreach (var pair in parameters)
                        {
                            command.Parameters.AddWithValue(pair.Key, pair.Value);
                        }
                    }

                    command.ExecuteNonQuery();
                }
                catch (Exception ex)
                {
                    System.Windows.Forms.MessageBox.Show("Blad wywolania procedury skladowej!"+"\r\n"+ex.ToString());
                }
            }
        } 

            Dictionary<string, string> dict = new Dictionary<string, string>();
            dict.Add("@Id", null);
            dict.Add("@Nip", textBox1.Text.ToString());
            dict.Add("@Regon", textBox2.Text.ToString());
            dict.Add("@Nazwa", textBox3.Text.ToString());
   

Dictionary<string, object> dict = new Dictionary<string, object>();
dict.Add("@Id", null);
dict.Add("@Nip", int.Parse(textBox1.Text.ToString()));
dict.Add("@Regon", int.Parse(textBox2.Text.ToString()));
dict.Add("@Nazwa", textBox3.Text.ToString());

command.Parameters.Add("@Nip", SqlDbType.Int);
command.Parameters["@Nip"].Value = int.Parse(textBox1.Text.ToString());