public void Start(DatabaseDialog databaseDialog, int whichDatabase, TableOptions tableOptions)
{
//At start update list of options
UpdateList(databaseDialog, whichDatabase);
//Start the Control() method and set returned value as whichTable
int whichTable = Control();
if (whichTable == options.Count - 3)
{
//If --Add new Table-- is selected, start adding new table
TableAdder.Add(ConnectionString, ServerType, databaseDialog, whichDatabase, this, tableOptions);
}
else if (whichTable == options.Count - 2)
{
//If --Delete Database-- is selected start deleting currently selected database
DatabaseDeleter.Delete(ConnectionString, ServerType, databaseDialog, whichDatabase, this, tableOptions);
}
else if (whichTable == options.Count - 1)
{
//If --Return-- is selected, return to databaseDialog
databaseDialog.Start(this, tableOptions);
}
else
{
//If a table is selected, open list of options for this table
tableOptions.Start(databaseDialog, whichDatabase, this, whichTable);
}
}
public static void Add(string connectionString, string serverType, DatabaseDialog databaseDialog, int whichDatabase, TableDialog tableDialog, TableOptions tableOptions)
{
//Ask user for new table name, and amount of columns inside.
Console.Clear();
Console.WriteLine("Enter table name:");
string tableName = Console.ReadLine();
Console.Clear();
Console.WriteLine("Enter amount of columns in the table:");
int howManyColumns = 0;
try
{
howManyColumns = Int32.Parse(Console.ReadLine());
}
catch
{
Console.WriteLine("Invalid amount of columns");
TableAdder.Add(connectionString, serverType, databaseDialog, whichDatabase, tableDialog, tableOptions);
}
string columnString = "";
if (serverType == "MSSQL")
{
//If server type is MSSQL Server, create string of column names, and their data types, putting column names in brackets.
for (int i = 1; i <= howManyColumns; i++)
{
Console.Clear();
Console.WriteLine($"Column {i} name:");
string newColumn = Console.ReadLine();
columnString += $"[{newColumn}] ";
Console.WriteLine($"Column {i} datatype:");
columnString += $"{Console.ReadLine()}, ";
}
//Remove last space and comma from column string
columnString = columnString.Substring(0, columnString.Length - 2);
//Create new SqlConnection adding Initial Catalog value to the connection string
SqlConnection connection = new SqlConnection(connectionString + $"Initial Catalog={databaseDialog.options[whichDatabase]};");
connection.Open();
//Create new table using gathered data
SqlCommand command = new SqlCommand($"CREATE Table {tableName}({columnString})", connection);
command.ExecuteNonQuery();
command.Dispose();
connection.Close();
connection.Dispose();
}
else if (serverType == "PostgreSQL")
{
//If server type is PostgreSQL, create string of column names, and their data types.
for (int i = 1; i <= howManyColumns; i++)
{
Console.Clear();
Console.WriteLine($"Column {i} name:");
string newColumn = Console.ReadLine();
columnString += $"{newColumn} ";
Console.WriteLine($"Column {i} datatype:");
columnString += $"{Console.ReadLine()}, ";
}
//Remove last space and comma from the column string.
columnString = columnString.Substring(0, columnString.Length - 2);
//Create new NpgsqlConnection adding Database value to the connection string
NpgsqlConnection connection = new NpgsqlConnection(connectionString + $"Database={databaseDialog.options[whichDatabase]};");
connection.Open();
//Create new table using gathered data
NpgsqlCommand command = new NpgsqlCommand($"CREATE Table {tableName} ({columnString})", connection);
Console.WriteLine($"CREATE Table {tableName} ({columnString})", connection);
command.ExecuteNonQuery();
command.Dispose();
connection.Close();
connection.Dispose();
}
//At the end return to the tableDialog
tableDialog.Start(databaseDialog, whichDatabase, tableOptions);
}
