Connessione al DataBase SQLite3 in C#

using System.Data.SQLite;

namespace Campionati_calcio2021_22
{
    public partial class Form1 : Form
    {        
        public Form1()
        {
            InitializeComponent();
        }

        private SQLiteConnection sql_con;
        private SQLiteCommand sql_cmd;
        private SQLiteDataAdapter DB;
        private DataSet DS = new DataSet();
        private DataTable DT = new DataTable();

        private void Form1_Load(object sender, EventArgs e)
        {
            LoadData();
        }
        
        // Set connection

        private void SetConnection()
        {
            sql_con = new SQLiteConnection("Data Source = c:\\Users\\franc\\source\\repos\\Campionati_calcio2021_22\\bin\\Debug\\Serie_A_21-22.db; Version = 3;");
            //sql_con = new SQLiteConnection("Data Source=Serie_A_21-22.db;Version=3;New=False;Compress=True;");
        }

        // Set executequery

        private void ExecuteQuery(string txtQuery)
        {
            SetConnection();
            sql_con.Open();
            sql_cmd = sql_con.CreateCommand();
            sql_cmd.CommandText = txtQuery;
            sql_cmd.ExecuteNonQuery();
            sql_con.Close();
        }

        // Set Load DataBase

        private void LoadData()
        {
            SetConnection();
            sql_con.Open();
            sql_cmd = sql_con.CreateCommand();
            string ComandText = "SELECT * From Giornate_And";
            DB = new SQLiteDataAdapter(ComandText, sql_con);
            DS.Reset();
            DB.Fill(DS);
            DT = DS.Tables[0];
            dataGridView1.DataSource = DT;
            sql_con.Close();
        }

        private void Aggiungi_Btn_Click(object sender, EventArgs e)
        {

        }
    }
}