WFA_psychometric_chart.Form1_main.FindPathOfBuildingDB C# (CSharp) Method

        public void FindPathOfBuildingDB()
        {
            try
            {
                BuildingSelected.Clear();
                string databasePath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
                // string databaseFile = databasePath + @"\db_psychrometric_project.s3db";
                //  string connString = @"Data Source=" + databaseFile + ";Version=3;";

                string path = databasePath;  //@"C:\Folder1\Folder2\Folder3\Folder4";
                string newPath = Path.GetFullPath(Path.Combine(path, @"..\"));
                // string againDbPath = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + newPath + @"Database\T3000.db";
                string againDbPath = @"Data Source=" + newPath + @"Database\T3000.db";
                // MessageBox.Show("New path : " + againDbPath);
                // bool returnValue = false;
                //string latValue = "";
                using (OleDbConnection connection = new OleDbConnection(againDbPath))
                {
                    connection.Open();
                    OleDbDataReader reader = null;
                    string queryString = "SELECT * from Building WHERE Default_SubBuilding = 1 ";//-1 or True  can be used//New changed to 1 value
                    OleDbCommand command = new OleDbCommand(queryString, connection);

                    reader = command.ExecuteReader();
                    while (reader.Read())
                    {

                        BuildingSelected.Add(new SelectedBuildingDatatype
                        {
                            Main_BuildingName = reader["Main_BuildingName"].ToString(),
                            Building_Name = reader["Building_Name"].ToString(),
                            Building_Path = reader["Building_Path"].ToString()
                        });
                    }
                }


            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            //MessageBox.Show("count = " + BuildingSelected.Count);
        }