Encrypter/Encrypter/MainWindow.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Encrypter
{
    /// <summary>
    /// Логика взаимодействия для MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        Encoding ascii = Encoding.ASCII;

        public MainWindow()
        {
            InitializeComponent();
        }
        private void sposob1_encrypt(object sender, RoutedEventArgs e)
        {

            string input = sposob1_input.Text, output = "";

            Dictionary<char, int> dictionarys = input.GroupBy(x => x).ToDictionary(x => x.Key, x => x.Count());
            int uniqueSymbCount = dictionarys.Count();

            Byte[] encodedBytes = ascii.GetBytes(input);
            foreach (Byte b in encodedBytes)
                output += $"{b + Convert.ToInt32(dictionarys.Where(item => item.Key == Convert.ToChar(b)).Select(item => item.Value).FirstOrDefault())}%";
            sposob1_output.Text = output;

        }
        private void sposob1_decrypt(object sender, RoutedEventArgs e)
        {
            //not working
            string input = sposob1_input2.Text, output = "";

            Dictionary<char, int> dictionarys = input.GroupBy(x => x).ToDictionary(x => x.Key, x => x.Count());
            int uniqueSymbCount = dictionarys.Count();
            int pos = 0;

            while (input.IndexOf('%') != -1)
            {
                byte temp = Convert.ToByte(Convert.ToInt32(input.Substring(0, input.IndexOf('%'))) - Convert.ToInt32(dictionarys.Where(item => item.Key == Convert.ToChar(b)).Select(item => item.Value).FirstOrDefault()));
                pos++;
                output += Convert.ToChar(temp);
                input = input.Remove(0, input.IndexOf('%') + 1);
            }

            sposob1_output2.Text = output;
        }
        private void sposob2_encrypt(object sender, RoutedEventArgs e)
        {
            string input = sposob2_input.Text, output = "";
            int pos = 0;

            Byte[] encodedBytes = ascii.GetBytes(input);
            foreach (Byte b in encodedBytes)
            {
                output += $"{b+pos}%";
                pos++;
            }
            sposob2_output.Text = output;
        }
        private void sposob2_decrypt(object sender, RoutedEventArgs e)
        {
            string input = sposob2_input2.Text, output = "";
            int pos = 0;

            while (input.IndexOf('%') != -1)
            {
                byte temp = Convert.ToByte(Convert.ToInt32(input.Substring(0, input.IndexOf('%'))) - pos);
                pos++;
                output += Convert.ToChar(temp);
                input = input.Remove(0, input.IndexOf('%') +1);
            }
            sposob2_output2.Text = output;
        }
        private void sposob3_encrypt(object sender, RoutedEventArgs e)
        {
            string input = sposob3_input.Text, output = "";

            Byte[] encodedBytes = ascii.GetBytes(input);
            foreach (Byte b in encodedBytes)
                output += $"{b + input.Length}%{input.Length}^?";
            sposob3_output.Text = output;
        }
        private void sposob3_decrypt(object sender, RoutedEventArgs e)
        {
            string input = sposob3_input2.Text, output = "";
            int count = input.Count(c => c == '%');

            while (input.IndexOf($"%{count}^?") != -1)
            {
                byte temp = Convert.ToByte(Convert.ToInt32(input.Substring(0, input.IndexOf($"%{count}^?"))) - count);
                output += Convert.ToChar(temp);
                input = input.Remove(0, input.IndexOf($"%{count}^?") + 3 + count.ToString().Length);
            }
            sposob3_output2.Text = output;
        }
    }
}