Get data in dataGridView

this is the structure of my project

DataAccess Project

ConnectionToSql class here is my connection to the db

namespace DataAccess
{
    public  abstract  class ConnectionToSql
    {
        private readonly string connectionString;
        public ConnectionToSql()  {
            connectionString = "Server=******; Password=*******; user=sa; DataBase=Tareas";

        }
        protected SqlConnection GetConnection() {
            return new SqlConnection(connectionString);
        }
    }
}

class UserDao in this class I call the procedures or the queries but when I bring the ListarProyectos procedure it doesn't bring it to me in the data dataGridView I don't know very well in which layer to put the code so that it brings me the data

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data;
using System.Data.SqlClient;
using Common.Cache;
namespace DataAccess
{
    public class UserDao: ConnectionToSql
    {
        public bool Login(string user, string pass)
        {
            using (var connection = GetConnection()) {
                connection.Open();
                using (var command = new SqlCommand()) {
                    command.Connection = connection;
                    command.CommandText = "select *from Users where LoginName=@user and Password=@pass";
                    command.Parameters.AddWithValue("@user", user);
                    command.Parameters.AddWithValue("@pass", pass);
                    command.CommandType = CommandType.Text;
                    SqlDataReader reader = command.ExecuteReader();
                    if (reader.HasRows)
                    {
                        while (reader.Read()) {
                            UserLoginCache.IdUser = reader.GetInt32(0);
                            UserLoginCache.FirstName = reader.GetString(3);
                            UserLoginCache.LastName = reader.GetString(4);
                            UserLoginCache.Position = reader.GetString(5);
                            UserLoginCache.Email = reader.GetString(6);
                        }
                        return true;
                    }
                    else
                        return false;
                }
            }
        }
        public DataTable ListarProyectos()
        {
            using (var connection = GetConnection())
            {
                connection.Open();
                using (var command = new SqlCommand())
                {
                    DataTable Tabla = new DataTable();
                    command.Connection = connection;
                    command.CommandText = "ListarProyectos";
                    command.CommandType = CommandType.StoredProcedure;
                    SqlDataReader reader = command.ExecuteReader();
                    Tabla.Load(reader);
                    reader.Close();
                    return Tabla;
                   }
            }
        }
    }
}

Domain Project

Class UserModel

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DataAccess;

namespace Domain
{
    public class UserModel
    {
        UserDao userDao = new UserDao();
        public bool LoginUser(string user, string pass) {
            return userDao.Login(user, pass);
        }
    }
}

Project Presentation

From the FormProject form I am calling the ListProject procedure but it does not bring me anything in the dataGridView in which layer the code has to go or what am I doing wrong

    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;
    using DataAccess;

    namespace ProyectoTareas
    {
        public partial class FormProyectos : Form
        {
            public FormProyectos()
            {
                InitializeComponent();
            }

            private void FormProyectos_Load(object sender, EventArgs e)
            {
                ListarProyectos();
            }

            private void ListarProyectos()
            {
                UserDao objtarea = new UserDao();
                dataGridView1.DataSource = objtarea.ListarProyectos();
            }
        }

}