C# how to make voting system with WinForms (7)

Question

Код для Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace AnyaTask7
{
    public partial class Form1 : Form
    {
        public string Vopros;
        public List<VoteVariant> Varianti = new List<VoteVariant>();
        public string PapkaSokhranen;
        public DateTime NachaloTime;
        public TimeSpan Prodolzhitelnost;
        public Timer golosovanTimer;
        public DateTime KonecTime;

        public int neoprGolosa = 0;
        public int obshGolosa = 0;

        public Form1()
        {
            InitializeComponent();

            golosovanTimer = new Timer();
            golosovanTimer.Interval = 1000;
            golosovanTimer.Tick += golosovanTimer_Tick;
            golosovanTimer.Start();
        }

        private void golosovanTimer_Tick(object sender, EventArgs e)
        {
            var now = DateTime.Now;
            txtVremya.Text = now.ToString();

            if (now >= NachaloTime && now <= KonecTime)
            {
                TimeSpan ostalos = KonecTime - now;
                lblStatus.Text = $"До конца голосования: {ostalos}";
            }
            else if (now > KonecTime && KonecTime != DateTime.MinValue)
            {
                lblStatus.Text = "Голосование завершено";

                var files = Directory.GetFiles(PapkaSokhranen);
                obshGolosa = files.Length;
                foreach (var f in files)
                {
                    string fileText = File.ReadAllText(f);
                    if (int.TryParse(fileText, out var nomerVarianta) && nomerVarianta >= 0 && nomerVarianta < Varianti.Count)
                    {
                        Varianti[nomerVarianta].KolvoProgolos += 1;
                    }
                    else
                    {
                        neoprGolosa += 1;
                        label5.Text = $"Неопределенные голоса: {neoprGolosa}";
                    }
                }

                golosovanTimer.Stop();

                string save = $"{Vopros}\n";
                save += $"Дата и время проведения голосования = {NachaloTime}\n";
                save += $"Интервал проведения голосования = {Prodolzhitelnost}\n";

                foreach (var item in Varianti)
                {
                    save += $"{item.Text} = {item.KolvoProgolos}\n";
                }

                save += $"Неопределенные голоса = {neoprGolosa}\n";
                save += $"Общее количество голосов = {obshGolosa}\n";

                File.WriteAllText(Path.Combine(PapkaSokhranen, "Результаты.txt"), save);
            }

            lstResults.Items.Clear();
            foreach (var item in Varianti)
            {
                lstResults.Items.Add(item);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            Vopros = txtVopros.Text;
            foreach (var item in txtOtveti.Lines)
            {
                Varianti.Add(new VoteVariant()
                {
                    Text = item,
                });
            }

            NachaloTime = dateTimePicker1.Value;
            Prodolzhitelnost = TimeSpan.FromMinutes((int)(numericUpDown1.Value));
            KonecTime = NachaloTime + Prodolzhitelnost;

            lblVopros.Text = Vopros;

            lstResults.Items.Clear();
            foreach (var item in Varianti)
            {
                lstResults.Items.Add(item);
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            FolderBrowserDialog saveFileDialog = new FolderBrowserDialog();
            saveFileDialog.ShowDialog();
            if (saveFileDialog.ShowDialog() == DialogResult.OK)
            {
                PapkaSokhranen = saveFileDialog.SelectedPath;
            }
        }
    }
}

Код для Form1.Designer.cs

namespace AnyaTask7
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.txtVopros = new System.Windows.Forms.TextBox();
            this.label1 = new System.Windows.Forms.Label();
            this.txtOtveti = new System.Windows.Forms.TextBox();
            this.labl2 = new System.Windows.Forms.Label();
            this.button1 = new System.Windows.Forms.Button();
            this.dateTimePicker1 = new System.Windows.Forms.DateTimePicker();
            this.numericUpDown1 = new System.Windows.Forms.NumericUpDown();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.button2 = new System.Windows.Forms.Button();
            this.txtVremya = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            this.lblStatus = new System.Windows.Forms.Label();
            this.lstResults = new System.Windows.Forms.ListBox();
            this.lblVopros = new System.Windows.Forms.Label();
            this.label5 = new System.Windows.Forms.Label();
            ((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).BeginInit();
            this.SuspendLayout();
            //
            // txtVopros
            //
            this.txtVopros.Location = new System.Drawing.Point(103, 28);
            this.txtVopros.Name = "txtVopros";
            this.txtVopros.Size = new System.Drawing.Size(100, 22);
            this.txtVopros.TabIndex = 0;
            //
            // label1
            //
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(42, 28);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(55, 16);
            this.label1.TabIndex = 1;
            this.label1.Text = "Вопрос";
            //
            // txtOtveti
            //
            this.txtOtveti.Location = new System.Drawing.Point(103, 72);
            this.txtOtveti.Multiline = true;
            this.txtOtveti.Name = "txtOtveti";
            this.txtOtveti.Size = new System.Drawing.Size(181, 111);
            this.txtOtveti.TabIndex = 2;
            //
            // labl2
            //
            this.labl2.AutoSize = true;
            this.labl2.Location = new System.Drawing.Point(45, 77);
            this.labl2.Name = "labl2";
            this.labl2.Size = new System.Drawing.Size(56, 16);
            this.labl2.TabIndex = 3;
            this.labl2.Text = "Ответы";
            //
            // button1
            //
            this.button1.Location = new System.Drawing.Point(50, 189);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(234, 23);
            this.button1.TabIndex = 4;
            this.button1.Text = "Выбрать папку для сохранения";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            //
            // dateTimePicker1
            //
            this.dateTimePicker1.Location = new System.Drawing.Point(205, 239);
            this.dateTimePicker1.Name = "dateTimePicker1";
            this.dateTimePicker1.Size = new System.Drawing.Size(200, 22);
            this.dateTimePicker1.TabIndex = 5;
            //
            // numericUpDown1
            //
            this.numericUpDown1.Location = new System.Drawing.Point(236, 276);
            this.numericUpDown1.Name = "numericUpDown1";
            this.numericUpDown1.Size = new System.Drawing.Size(120, 22);
            this.numericUpDown1.TabIndex = 6;
            //
            // label2
            //
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(50, 278);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(180, 16);
            this.label2.TabIndex = 7;
            this.label2.Text = "Продолжительность в мин";
            //
            // label3
            //
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(55, 239);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(144, 16);
            this.label3.TabIndex = 8;
            this.label3.Text = "Дата и время начала";
            //
            // button2
            //
            this.button2.Location = new System.Drawing.Point(53, 321);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(75, 23);
            this.button2.TabIndex = 9;
            this.button2.Text = "Начать";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            //
            // txtVremya
            //
            this.txtVremya.AutoSize = true;
            this.txtVremya.Location = new System.Drawing.Point(481, 120);
            this.txtVremya.Name = "txtVremya";
            this.txtVremya.Size = new System.Drawing.Size(44, 16);
            this.txtVremya.TabIndex = 10;
            this.txtVremya.Text = "label4";
            //
            // label4
            //
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(484, 164);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(129, 16);
            this.label4.TabIndex = 11;
            this.label4.Text = "Осталось времени";
            //
            // lblStatus
            //
            this.lblStatus.AutoSize = true;
            this.lblStatus.Location = new System.Drawing.Point(629, 164);
            this.lblStatus.Name = "lblStatus";
            this.lblStatus.Size = new System.Drawing.Size(44, 16);
            this.lblStatus.TabIndex = 12;
            this.lblStatus.Text = "label5";
            //
            // lstResults
            //
            this.lstResults.FormattingEnabled = true;
            this.lstResults.ItemHeight = 16;
            this.lstResults.Location = new System.Drawing.Point(487, 210);
            this.lstResults.Name = "lstResults";
            this.lstResults.Size = new System.Drawing.Size(120, 84);
            this.lstResults.TabIndex = 13;
            //
            // lblVopros
            //
            this.lblVopros.AutoSize = true;
            this.lblVopros.Location = new System.Drawing.Point(484, 54);
            this.lblVopros.Name = "lblVopros";
            this.lblVopros.Size = new System.Drawing.Size(44, 16);
            this.lblVopros.TabIndex = 14;
            this.lblVopros.Text = "label5";
            //
            // label5
            //
            this.label5.AutoSize = true;
            this.label5.Location = new System.Drawing.Point(487, 321);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(44, 16);
            this.label5.TabIndex = 15;
            this.label5.Text = "label5";
            //
            // Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(800, 450);
            this.Controls.Add(this.label5);
            this.Controls.Add(this.lblVopros);
            this.Controls.Add(this.lstResults);
            this.Controls.Add(this.lblStatus);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.txtVremya);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.numericUpDown1);
            this.Controls.Add(this.dateTimePicker1);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.labl2);
            this.Controls.Add(this.txtOtveti);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.txtVopros);
            this.Name = "Form1";
            this.Text = "Form1";
            ((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).EndInit();
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.TextBox txtVopros;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.TextBox txtOtveti;
        private System.Windows.Forms.Label labl2;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.DateTimePicker dateTimePicker1;
        private System.Windows.Forms.NumericUpDown numericUpDown1;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Label txtVremya;
        private System.Windows.Forms.Label label4;
        private System.Windows.Forms.Label lblStatus;
        private System.Windows.Forms.ListBox lstResults;
        private System.Windows.Forms.Label lblVopros;
        private System.Windows.Forms.Label label5;
    }
}

Код для VoteVariant.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AnyaTask7
{
    public class VoteVariant
    {
        public string Text;
        public int KolvoProgolos;

        public override string ToString()
        {
            return $"{Text} - {KolvoProgolos}";
        }
    }
}