Add project files.

WindowsFormsCore/Form1.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Diagnostics;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using WindowsFormsCore.Operations;
+
+namespace WindowsFormsCore
+{
+    public enum LNum
+    {
+        x1 = 1,
+        x2 = 2,
+        x3 = 3,
+        x4 = 4,
+        x5 = 5,
+        x6 = 6,
+        x7 = 7,
+        x8 = 8,
+        x9 = 9,
+        x10 = 10,
+        x11 = 11,
+        x12 = 12,
+        x13 = 13,
+        x14 = 14,
+        x15 = 15,
+        x16 = 16,
+        x17 = 17,
+        x18 = 18,
+        x19 = 19,
+        x20 = 20,
+        x21 = 21,
+        x22 = 22,
+        x23 = 23,
+        x24 = 24,
+        x25 = 25,
+        x26 = 26,
+        x27 = 27,
+        x28 = 28,
+        x29 = 29,
+        x30 = 30,
+        x31 = 31,
+        x32 = 32,
+        x33 = 33,
+        x34 = 34,
+        x35 = 35
+    }
+    public partial class Form1 : Form
+    {
+
+        Random rnd = new CryptoRandom(DateTime.Now.DayOfYear);
+        private Lotto lotto;
+        private List<string> clicked;
+        private byte numClicks = 0;
+        private bool clearing;
+
+        public Form1()
+        {
+            InitializeComponent();
+            lotto = new Lotto(rnd);
+            ClearChks();
+        }
+
+        private void btnGenerate_Click(object sender, EventArgs e)
+        {
+
+            var ansver = lotto.RandomRad();
+            txtNr1.Text = ansver[0];
+            txtNr2.Text = ansver[1];
+            txtNr3.Text = ansver[2];
+            txtNr4.Text = ansver[3];
+            txtNr5.Text = ansver[4];
+            txtNr6.Text = ansver[5];
+            txtNr7.Text = ansver[6];
+        }
+
+        private string randomNum()
+        {
+            return Enum.GetName(typeof(LNum), rnd.Next((int)LNum.x1, (int)LNum.x35));
+        }
+
+        private void btnGenMotNr_Click(object sender, EventArgs e)
+        {
+            lblIndicator.BackColor = SystemColors.Control;
+            lblIndicator.Text = "     ";
+            List<string> jmfList = new List<string>();
+            txtNr21.Text = string.IsNullOrEmpty(txtNr1.Text) ? "" : lotto.AntiCircularValue(int.Parse(txtNr1.Text)).ToString();
+            jmfList.Add(txtNr21.Text);
+            txtNr22.Text = string.IsNullOrEmpty(txtNr2.Text) ? "" : lotto.AntiCircularValue(int.Parse(txtNr2.Text)).ToString();
+            jmfList.Add(txtNr22.Text);
+            txtNr23.Text = string.IsNullOrEmpty(txtNr3.Text) ? "" : lotto.AntiCircularValue(int.Parse(txtNr3.Text)).ToString();
+            jmfList.Add(txtNr23.Text);
+            txtNr24.Text = string.IsNullOrEmpty(txtNr4.Text) ? "" : lotto.AntiCircularValue(int.Parse(txtNr4.Text)).ToString();
+            jmfList.Add(txtNr24.Text);
+            txtNr25.Text = string.IsNullOrEmpty(txtNr5.Text) ? "" : lotto.AntiCircularValue(int.Parse(txtNr5.Text)).ToString();
+            jmfList.Add(txtNr25.Text);
+            txtNr26.Text = string.IsNullOrEmpty(txtNr6.Text) ? "" : lotto.AntiCircularValue(int.Parse(txtNr6.Text)).ToString();
+            jmfList.Add(txtNr26.Text);
+            txtNr27.Text = string.IsNullOrEmpty(txtNr7.Text) ? "" : lotto.AntiCircularValue(int.Parse(txtNr7.Text)).ToString();
+            jmfList.Add(txtNr27.Text);
+
+            jmfList.Sort();
+            var prev = string.Empty;
+            foreach (var str in jmfList)
+            {
+                if (str == prev)
+                {
+                    lblIndicator.BackColor = Color.Red;
+                    lblIndicator.Text = str;
+                    break;
+                }
+                prev = str;
+            }
+
+        }
+
+        private void btnTest_Click(object sender, EventArgs e)
+        {
+            var tstIn = decimal.Parse(txtTestIn.Text);
+            txtTestOut.Text = $"number for angle {tstIn} = {lotto.GetNumberByAngle(tstIn)}";
+        }
+
+        private void chk_CheckedChanged(object sender, EventArgs e)
+        {
+            if (!clearing)
+            {
+                var clickTxt = ((CheckBox)sender).Text;
+
+                if (clicked.Any(c => c == clickTxt))
+                {
+
+                    clicked.Remove(clickTxt);
+                    clicked.ToList().ForEach(x => Debug.Write($"{x},"));
+                    Debug.WriteLine("");
+                }
+                else
+                {
+                    clicked.Add(clickTxt);
+                }
+
+                if (clicked.Count() > 6)
+                {
+
+
+                    for (int i = 0; i < 7; i++)
+                    {
+                        switch (i + 1)
+                        {
+                            case 1:
+                                {
+                                    txtNr1.Text = clicked[i];
+                                    break;
+                                }
+                            case 2:
+                                {
+                                    txtNr2.Text = clicked[i];
+                                    break;
+                                }
+                            case 3:
+                                {
+                                    txtNr3.Text = clicked[i];
+                                    break;
+                                }
+                            case 4:
+                                {
+                                    txtNr4.Text = clicked[i];
+                                    break;
+                                }
+                            case 5:
+                                {
+                                    txtNr5.Text = clicked[i];
+                                    break;
+                                }
+                            case 6:
+                                {
+                                    txtNr6.Text = clicked[i];
+                                    break;
+                                }
+                            case 7:
+                                {
+                                    txtNr7.Text = clicked[i];
+                                    break;
+                                }
+                        }
+                    }
+                    ClearChks();
+                }
+            }
+        }
+
+        private void ClearChks()
+        {
+            clearing = true;
+            foreach (var chk in gpbInmata.Controls)
+            {
+                if (chk.GetType() == typeof(CheckBox))
+                {
+                    ((CheckBox)chk).Checked = false;
+                }
+            }
+            clicked = new List<string>();
+            numClicks = 0;
+            clearing = false;
+        }
+
+        private void btnClear_Click(object sender, EventArgs e)
+        {
+            ClearChks();
+            gpbInmata.Refresh();
+        }
+    }
+}