Пример #1
0
        public static void SelectRow(string connectionString, string serverType, DatabaseDialog databaseDialog, int whichDatabase, TableDialog tableDialog, int whichTable, TableOptions tableOptions)
        {
            DataTable dataTable = new DataTable();
            DataTable columns   = new DataTable();

            if (serverType == "MSSQL Server")
            {
                //If server type is MSSQL Server fill one DataTable with all table contents and second with column names and data types using SqlClient
                SqlConnection connection = new SqlConnection(connectionString + $"Initial Catalog={databaseDialog.options[whichDatabase]}");

                SqlDataAdapter adapter = new SqlDataAdapter($"SELECT * FROM {tableDialog.options[whichTable]}", connection);
                connection.Open();
                adapter.Fill(dataTable);

                SqlDataAdapter columnNames = new SqlDataAdapter($"Select column_name, data_type from information_schema.columns where table_name = '{tableDialog.options[whichTable]}'", connection);
                columnNames.Fill(columns);
                connection.Close();
            }
            else if (serverType == "PostgreSQL")
            {
                //If server type is PostgreSQL fill dataTable with column names and data types using Npgsql
                NpgsqlConnection connection = new NpgsqlConnection(connectionString + $"Database={databaseDialog.options[whichDatabase]}");

                NpgsqlDataAdapter adapter = new NpgsqlDataAdapter($"SELECT * FROM {tableDialog.options[whichTable]}", connection);
                connection.Open();
                adapter.Fill(dataTable);

                NpgsqlDataAdapter columnNames = new NpgsqlDataAdapter($"Select column_name, data_type from information_schema.columns where table_name = '{tableDialog.options[whichTable]}'", connection);
                columnNames.Fill(columns);
                connection.Close();
            }
            //Set currently selected row to 0
            int  whichRow = 0;
            bool inside   = true;

            //Print table with row 0 highlighted
            TablePrinter.PrintRowSelector(dataTable, columns, whichRow);
            while (inside)
            {
                if (Console.KeyAvailable)
                {
                    ConsoleKeyInfo input = Console.ReadKey();
                    switch (input.Key)
                    {
                    case ConsoleKey.UpArrow:
                        if (whichRow > 0)
                        {
                            whichRow--;
                        }
                        TablePrinter.PrintRowSelector(dataTable, columns, whichRow);
                        break;

                    case ConsoleKey.DownArrow:
                        if (whichRow < dataTable.Rows.Count - 1)
                        {
                            whichRow++;
                        }
                        TablePrinter.PrintRowSelector(dataTable, columns, whichRow);
                        break;

                    case ConsoleKey.Escape:
                        Console.Clear();
                        Console.WriteLine("Returning...");
                        tableOptions.Start(databaseDialog, whichDatabase, tableDialog, whichTable);
                        break;

                    case ConsoleKey.Enter:
                        inside = false;
                        break;
                    }
                }
            }
            RowDeleter.Delete(connectionString, serverType, databaseDialog, whichDatabase, tableDialog, whichTable, tableOptions, dataTable, columns, whichRow);

            RowDeleter.SelectRow(connectionString, serverType, databaseDialog, whichDatabase, tableDialog, whichTable, tableOptions);
        }