Пример #1
0
        /// <summary>
        /// Delete data from SQL table Countries
        /// </summary>
        public void DeleteData()
        {
            try
            {
                string sql = "delete from countries";

                command = new SQLiteCommand(sql, connection);
                command.ExecuteNonQuery();

                currencyDataService = new CurrencyDataService();
                currencyDataService.DeleteData();
                languageDataService = new LanguageDataService();
                languageDataService.DeleteData();
                regionalBlocsDataService = new RegionalBlocsDataService();
                regionalBlocsDataService.DeleteData();
            }
            catch (Exception e)
            {
                dialogService.ShowMessage("Error", e.Message);
            }
        }
Пример #2
0
        /// <summary>
        /// Saving data of Countries in SQL with insert command
        /// </summary>
        /// <param name="countries"></param>
        public async Task SaveData(List <Country> countries, IProgress <ProgressReport> progress)
        {
            ProgressReport report = new ProgressReport();
            byte           p      = 1;

            await Task.Run(() =>
            {
                try
                {
                    foreach (var country in countries)
                    {
                        string sql = string.Format("insert into countries (name, alpha2Code, alpha3Code, capital, region, subregion, population, demonym, area, gini, nativeName, numericCode, cioc) values (\"{0}\", '{1}', '{2}', \"{3}\", '{4}', '{5}', {6}, '{7}', '{8}', '{9}', \"{10}\", '{11}', '{12}')", country.Name, country.Alpha2Code, country.Alpha3Code, country.Capital, country.Region, country.Subregion, country.Population, country.Demonym, country.Area, country.Gini, country.NativeName, country.NumericCode, country.Cioc);

                        command = new SQLiteCommand(sql, connection);
                        command.ExecuteNonQuery();

                        currencyDataService = new CurrencyDataService();
                        currencyDataService.SaveData(country.Currencies, country.Alpha3Code);

                        languageDataService = new LanguageDataService();
                        languageDataService.SaveData(country.Languages, country.Alpha3Code);

                        regionalBlocsDataService = new RegionalBlocsDataService();
                        regionalBlocsDataService.SaveData(country.RegionalBlocs, country.Alpha3Code);

                        report.Percentage = Convert.ToByte((p * 100) / countries.Count);
                        progress.Report(report);
                        p++;
                    }
                    connection.Close();
                }
                catch (Exception e)
                {
                    dialogService.ShowMessage("Error", e.Message);
                }
            });
        }