public bool CreateUser(string username, string password) { string connection = @"Data Source=LAPTOP-9BG7K3OP;Initial Catalog=BSK_2;Integrated Security=True"; string databasename = "BSK_2"; try { using (SqlConnection conn = new SqlConnection(connection)) { conn.Open(); string sql = "CREATE LOGIN " + username + " WITH PASSWORD = '******'; USE " + databasename + "; CREATE USER " + username + " FOR LOGIN " + username + ";" + "alter role [db_datareader] add member [" + username + "];" + "alter role [db_datawriter] add member [" + username + "];"; SqlCommand cmd = new SqlCommand(sql, conn); cmd.ExecuteNonQuery(); string sql2 = "insert into MacSec.Users Values(" + "'" + username + "'," + "'Unclassified'," + "0);"; SqlCommand cmd2 = new SqlCommand(sql2, conn); cmd2.ExecuteNonQuery(); foreach (string command in DenyAccesLevel.FillDenyList0(username)) { SqlCommand sqlCommand = new SqlCommand(command, conn); sqlCommand.ExecuteNonQuery(); } } Thread.Sleep(50); return(ConnectToDataBase(username, password)); } catch (Exception ex) { MessageBox.Show(ex.Message); Console.WriteLine(ex.Message); return(ConnectToDataBase(username, password)); } }