Setup and forms

paymentLogs/Forms/StudentsForm.cs

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+using PaymentLogs.Domain;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace PaymentLogs.Forms
+{
+    public partial class StudentsForm : Form
+    {
+        private Course _course;
+        public StudentsForm(string courseName)
+        {
+            InitializeComponent();
+            _course = Program.CourseRepository.ByName(courseName);
+        }
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+            dataGridView1.Columns.Add("id", "Номер");
+            dataGridView1.Columns.Add("fcs", "ФИО");
+            dataGridView1.Columns.Add("dateOfBirth", "Дата рождения");
+            dataGridView1.Columns.Add("address", "Адрес проживания");
+            dataGridView1.Columns.Add("course", "Дисциплина");
+            dataGridView1.Columns.Add("paid", "Оплачено");
+
+            foreach(Student student in Program.StudentRepository.All())
+            {
+                if (student.CourseId != _course.Id) continue;
+                //yyyy-MM-dd
+                dataGridView1.Rows.Add(student.Id.ToString(), student.FCs.ToString(), String.Format("{0:dd-MM-yyyy}", student.dateOfBirth), 
+                    student.Address.ToString(), Program.CourseRepository.Get(student.CourseId).Name.ToString(), student.Paid.ToString());
+            }
+
+        }
+
+        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
+        {
+
+        }
+
+        private void toolStripButton2_Click(object sender, EventArgs e)
+        {
+            foreach (DataGridViewRow row in dataGridView1.Rows)
+            {
+                try
+                {
+                    if (row.Cells.Count > 1 && row.Cells["id"].Value != null) 
+                    {
+                        Student student = new Student
+                        {
+                            Id = Convert.ToInt32(row.Cells["id"].Value),
+                            FCs = row.Cells["fcs"].Value.ToString(),
+                            dateOfBirth = DateTime.ParseExact(row.Cells["dateOfBirth"].Value.ToString(), "dd-MM-yyyy", null),
+                            Address = row.Cells["address"].Value.ToString(),
+                            CourseId = Program.CourseRepository.ByName(row.Cells["course"].Value.ToString()).Id,
+                            Paid = Convert.ToInt32(row.Cells["paid"].Value.ToString())
+                        };
+                        Program.StudentRepository.Update(student.Id, student);
+                    }
+
+                }
+                catch (NullReferenceException ignored) { }
+                catch (Exception ignored) { }
+            }
+            Program.StudentRepository.Save();
+        }
+
+        private void textBox1_TextChanged(object sender, EventArgs e)
+        {
+
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            string FCsText = textBox1.Text;
+            List<List<string>> filtredList = new List<List<string>>();
+            foreach (DataGridViewRow row in dataGridView1.Rows)
+            {
+                try
+                {
+                    if (row.Cells["fcs"].Value == null)
+                    {
+                        continue;
+                    }
+                    string FCs = row.Cells["fcs"].Value.ToString();
+                    string course = row.Cells["course"].Value.ToString();
+                    if (((FCs.Equals(FCsText))))
+                    {
+                        List<string> list = new List<string>
+                        { row.Cells["id"].Value.ToString(), row.Cells["fcs"].Value.ToString(),
+                            row.Cells["dateOfBirth"].Value.ToString(), row.Cells["address"].Value.ToString(),
+                            row.Cells["course"].Value.ToString(), row.Cells["paid"].Value.ToString() };
+
+                        filtredList.Add(list);
+                    }
+                }
+                catch (Exception ignored)
+                {
+
+                }
+            }
+            dataGridView1.Rows.Clear();
+            foreach (List<String> args in filtredList)
+            {
+                dataGridView1.Rows.Add(args[0], args[1], args[2], args[3], args[4], args[5]);
+            }
+        }
+
+        private void toolStripButton1_Click(object sender, EventArgs e)
+        {
+            this.Hide();
+            (new StudentsForm(_course.Name)).Show();
+        }
+
+        private void toolStripButton3_Click(object sender, EventArgs e)
+        {
+            this.Hide();
+            (new MainForm()).Show();
+        }
+    }
+}