Починил

Cop.Borovkov.Var3/Cop.Borovkov.Var3/Components/CustomDataTable.cs

@@ -41,7 +41,7 @@ namespace Cop.Borovkov.Var3.Components
                     column.AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
                 }
 
-                outDataGridView.Columns.Add(column);
+                _ = outDataGridView.Columns.Add(column);
             }
         }
 
@@ -108,10 +108,10 @@ namespace Cop.Borovkov.Var3.Components
 
             Type type = typeof(TType);
 
-            for (int i = 0; i < insertValues.Count(); ++i)
+            for (int i = 0; i < insertValues.Count; ++i)
             {
                 var row = insertValues[i];
-                outDataGridView.Rows.Add();
+                _ = outDataGridView.Rows.Add();
 
                 for (int j = 0; j < outDataGridView.ColumnCount; ++j)
                 {

Cop.Borovkov.Var3/Lab3.Database/Extensions/DIExtension.cs

@@ -14,7 +14,7 @@ namespace Lab3.Database.Extensions
             this IServiceCollection services,
             IConfiguration configuration)
         {
-            services.AddDbContextPool<COPContext>(
+            _ = services.AddDbContextPool<COPContext>(
                 dbContextOptions =>
                 {
                     AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);

Cop.Borovkov.Var3/Lab3/Extensions/DIExtension.cs

@@ -21,7 +21,7 @@ namespace Lab3.Extensions
             return services;
         }
 
-        public static IServiceCollection AddForms(
+        public static IServiceCollection AddLab3Forms(
             this IServiceCollection services)
         {
             services.AddScoped<MainForm>();

Cop.Borovkov.Var3/Lab3/Forms/CatalogForm.cs

@@ -19,7 +19,7 @@ namespace Lab3.Forms
             var values = (await _repository.Get()).ToList();
             for (int i = 0; i < values.Count; i++)
             {
-                Catalog.Rows.Add();
+                _ = Catalog.Rows.Add();
                 Catalog.Rows[i].Cells[0].Value = values[i];
             }
         }
@@ -40,7 +40,7 @@ namespace Lab3.Forms
                     string? val = (string?)Catalog.Rows[i].Cells[0].Value;
                     if (string.IsNullOrEmpty(val))
                     {
-                        MessageBox.Show(
+                        _ = MessageBox.Show(
                             "Неверные данные",
                             "Ошибка",
                             MessageBoxButtons.OK,
@@ -54,7 +54,7 @@ namespace Lab3.Forms
             }
             catch (Exception ex)
             {
-                MessageBox.Show(
+                _ = MessageBox.Show(
                     ex.Message,
                     "Ошибка",
                     MessageBoxButtons.OK,
@@ -66,7 +66,7 @@ namespace Lab3.Forms
         {
             if  (e.KeyCode == Keys.Insert)
             {
-                Catalog.Rows.Add();
+                _ = Catalog.Rows.Add();
             }
 
             if (e.KeyCode == Keys.Delete && Catalog.SelectedRows.Count == 1)
@@ -84,7 +84,7 @@ namespace Lab3.Forms
                     }
                     catch (Exception ex)
                     {
-                        MessageBox.Show(
+                        _ = MessageBox.Show(
                             ex.Message,
                             "Ошибка",
                             MessageBoxButtons.OK,

Cop.Borovkov.Var3/Lab3/Forms/CreateForm.cs

@@ -37,7 +37,7 @@ namespace Lab3.Forms
             }
             var student = await _studentRepository.GetAsync(_updatedStudentGuid.Value);
 
-            NameTextBox.Text = student.Name;
+            NameTextBox.Text = student!.Name;
             StartEducationDataPicker.Value = student.StartEducation;
             FormSelector.ComboBoxSelectedValue = student.EducationForm;
 
@@ -101,11 +101,11 @@ namespace Lab3.Forms
 
                 if (_updatedStudentGuid != null)
                 {
-                    await _studentRepository.UpdateAsync(student);
+                    _ = await _studentRepository.UpdateAsync(student);
                 }
                 else
                 {
-                    await _studentRepository.CreateAsync(student);
+                    _ = await _studentRepository.CreateAsync(student);
                 }
                 Close();
             }

Cop.Borovkov.Var3/Lab3/Program.cs

@@ -9,7 +9,7 @@ namespace Lab3
     internal static class Program
     {
         /// <summary>
-        ///  The main entry point for the application.
+        /// The main entry point for the application.
         /// </summary>
         [STAThread]
         static void Main()
@@ -34,7 +34,7 @@ namespace Lab3
 
                     services.AddMapping();
 
-                    services.AddForms();
+                    services.AddLab3Forms();
                 });
         }
     }

Cop.Borovkov.Var3/Lab4/Extensions/DiExtensions.cs

@@ -0,0 +1,29 @@
+using Lab4.Forms;
+using Lab4.Implementations;
+using Lab4.Interfaces;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Lab4.Extensions
+{
+    public static class DiExtensions
+    {
+        public static IServiceCollection AddLab4Forms(
+            this IServiceCollection services)
+        {
+            services.AddScoped<FormMain>();
+
+            return services;
+        }
+
+        public static IServiceCollection AddScopes(
+            this IServiceCollection services)
+        {
+            services.AddScoped<PluginsConvention>();
+
+            services.AddScoped<Func<Type, IPluginsConvention>>(sp 
+                => (type) => (sp.GetRequiredService(type) as IPluginsConvention)!);
+
+            return services;
+        }
+    }
+}

Cop.Borovkov.Var3/Lab4/Forms/FormMain.cs

@@ -8,23 +8,52 @@ namespace Lab4.Forms
         private readonly Dictionary<string, IPluginsConvention> _plugins;
         private string _selectedPlugin;
 
-        public FormMain()
+        private readonly Func<Type, IPluginsConvention> _getPluginObjectFunc;
+
+        public FormMain(Func<Type, IPluginsConvention> getPluginObjectFunc)
         {
             InitializeComponent();
             
+            _getPluginObjectFunc = getPluginObjectFunc;
+
             _plugins = LoadPlugins();
             _selectedPlugin = string.Empty;
         }
 
         private Dictionary<string, IPluginsConvention> LoadPlugins()
         {
-            // TODO Заполнить IPluginsConvention
-            // TODO Заполнить пункт меню "Компоненты" на основе IPluginsConvention.PluginName
-            // TODO Например, создавать ToolStripMenuItem, привязывать к ним обработку событий и добавлять в menuStrip
-            // TODO При выборе пункта меню получать UserControl и заполнять элемент panelControl этим контролом на всю площадь
-            // Пример: panelControl.Controls.Clear();
-            // panelControl.Controls.Add(ctrl);
-            return [];
+            Dictionary<string, IPluginsConvention> result = [];
+
+            var plurinType = typeof(IPluginsConvention);
+
+            foreach (var type in AppDomain.CurrentDomain
+                .GetAssemblies()
+                .SelectMany(x => x.GetTypes())
+                .Where(x => plurinType.IsAssignableFrom(x) && x != plurinType))
+            {
+                var plugin = _getPluginObjectFunc(type);
+
+                string key = plugin.PluginName;
+                result[key] = plugin;
+
+                var item = new ToolStripMenuItem(key);
+                item.Click += (s, e) =>
+                {
+                    _selectedPlugin = key;
+
+                    panelControl.Controls.Clear();
+
+                    _plugins[_selectedPlugin].ReloadData();
+                    var control = _plugins[key].GetControl;
+                    control.Parent = panelControl;
+                    control.Dock = DockStyle.Fill;
+
+                    panelControl.Controls.Add(control);
+                };
+                ControlsStripMenuItem.DropDownItems!.Add(item);
+            }
+
+            return result;
         }
 
         private void FormMain_KeyDown(object sender, KeyEventArgs e)
@@ -98,6 +127,7 @@ namespace Lab4.Forms
                 _plugins[_selectedPlugin].ReloadData();
             }
         }
+       
         private void DeleteElement()
         {
             if (MessageBox.Show("Удалить выбранный элемент", "Удаление",
@@ -123,8 +153,19 @@ namespace Lab4.Forms
 
         private void CreateSimpleDoc()
         {
-            // TODO узнать где сохранять
-            if (_plugins[_selectedPlugin].CreateSimpleDocument(new PluginsConventionSaveDocument()))
+            using var saveFileDialog = new SaveFileDialog
+            {
+                Filter = "pdf|*.pdf"
+            };
+            if (saveFileDialog.ShowDialog() != DialogResult.OK)
+            {
+                return;
+            }
+
+            if (_plugins[_selectedPlugin].CreateSimpleDocument(new PluginsConventionSaveDocument()
+            {
+                FileName = saveFileDialog.FileName,
+            }))
             {
                 _ = MessageBox.Show("Документ сохранен",
                     "Создание документа",
@@ -136,11 +177,24 @@ namespace Lab4.Forms
                 _ = MessageBox.Show("Ошибка при создании документа", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
             }
         }
+        
         private void CreateTableDoc()
         {
-            // TODO узнать где сохранять
+            using var saveFileDialog = new SaveFileDialog
+            {
+                Filter = "xlsx|*.xlsx"
+            };
+
+            if (saveFileDialog.ShowDialog() != DialogResult.OK)
+            {
+                return;
+            }
+
             if (_plugins[_selectedPlugin].CreateTableDocument(new
-            PluginsConventionSaveDocument()))
+            PluginsConventionSaveDocument()
+            {
+                FileName = saveFileDialog.FileName,
+            }))
             {
                 _ = MessageBox.Show("Документ сохранен",
                     "Создание документа",
@@ -152,10 +206,23 @@ namespace Lab4.Forms
                 _ = MessageBox.Show("Ошибка при создании документа", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
             }
         }
+        
         private void CreateChartDoc()
         {
-            // TODO узнать где сохранять
-            if (_plugins[_selectedPlugin].CreateChartDocument(new PluginsConventionSaveDocument()))
+            using var saveFileDialog = new SaveFileDialog
+            {
+                Filter = "docx|*.docx"
+            };
+
+            if (saveFileDialog.ShowDialog() != DialogResult.OK)
+            {
+                return;
+            }
+
+            if (_plugins[_selectedPlugin].CreateChartDocument(new PluginsConventionSaveDocument()
+            {
+                FileName= saveFileDialog.FileName,
+            }))
             {
                 _ = MessageBox.Show("Документ сохранен",
                     "Создание документа",

Cop.Borovkov.Var3/Lab4/Implementations/PluginsConvention.cs

@@ -0,0 +1,204 @@
+using Cop.Borovkov.Var3.Components;
+using Lab4.Interfaces;
+using Lab4.Models;
+using Lab3.Database.Repository.Interfaces;
+using ComponentsLibrary.entities;
+using ComponentsLibrary;
+using ComponentsLibrary.entities.enums;
+using Lab3.Database.DTO;
+using CustomComponentsVar2;
+using Lab3.Forms;
+using Lab3.Models;
+using AutoMapper;
+
+namespace Lab4.Implementations
+{
+    public class PluginsConvention : IPluginsConvention
+    {
+        private readonly IMapper _mapper;
+        private readonly IStudentRepository _studentRepository;
+        private readonly IEducationFormRepository _educationFormRepository;
+
+        private readonly CustomListBox _control;
+        private readonly CustomPdfTable _simpleDocumentCreator;
+        private readonly CustomExcelTable _tableCreator;
+        private readonly ComponentDiagram _chartCreator;
+
+        public PluginsConvention(
+            IMapper mapper,
+            IStudentRepository studentRepository,
+            IEducationFormRepository educationFormRepository)
+        {
+            _mapper = mapper;
+            _studentRepository = studentRepository;
+            _educationFormRepository = educationFormRepository;
+
+            _control = new();
+            _chartCreator = new();
+            _tableCreator = new();
+            _simpleDocumentCreator = new();
+        }
+
+        public string PluginName => "Успеваемость";
+
+        public UserControl GetControl => _control;
+
+        public PluginsConventionElement GetElement {
+            get
+            {
+                var filds = _control.Selected.Split();
+
+                Guid id = Guid.Parse(filds[0]);
+
+                return new()
+                {
+                    Id = id,
+                };
+            }
+        }
+
+        public bool CreateChartDocument(PluginsConventionSaveDocument saveDocument)
+        {
+            try
+            {
+                var data = _studentRepository.GetAsync().Result
+                    .GroupBy(s => s.EducationForm)
+                    .Select(s => new DataLine(
+                        s.Key,
+                        s.GroupBy(x => x.StartEducation.Year)
+                        .Select(x => (year: x.Key.ToString(), count: (double)x.Count()))
+                        .ToArray()))
+                    .ToList();
+
+                _chartCreator.AddDiagram(
+                    new(
+                        saveDocument.FileName,
+                        "Поступления",
+                        "Диаграмма",
+
+                        EnumAreaLegend.Bottom,
+                        data
+                    )
+                );
+
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
+        public bool CreateSimpleDocument(PluginsConventionSaveDocument saveDocument)
+        {
+            try
+            {
+                var values = (_studentRepository.GetAsync()).Result
+                        .Select(s => s.StudentSessions
+                            .OrderBy(x => x.Number)
+                            .Select(x => x.Score.ToString())
+                            .ToArray())
+                        .ToArray();
+
+                var tables = new string[values.Length, 6];
+
+                for (int i = 0; i < values.Length; ++i)
+                {
+                    for (int j = 0; j < 6; ++j)
+                    {
+                        tables[i, j] = values[i][j];
+                    }
+                }
+
+                _simpleDocumentCreator.SaveToPdf(new()
+                {
+                    FilePath = saveDocument.FileName,
+                    Title = "Сессии",
+                    Tables = [tables]
+                });
+
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
+        public bool CreateTableDocument(PluginsConventionSaveDocument saveDocument)
+        {
+            try
+            {
+                _tableCreator.SaveToExcel<StudentDTO>(new()
+                {
+                    FilePath = saveDocument.FileName,
+                    Title = "Студенты",
+                    Headers =
+                    [
+                        ("Id", nameof(StudentDTO.Id)),
+                        ("ФИО", nameof(StudentDTO.Name)),
+                        ("Форма обучения", nameof(StudentDTO.EducationForm)),
+                        ("Дата поступления", nameof(StudentDTO.StartEducation)),
+                    ],
+                    HeaderGroups = [new() {
+                        GroupHeader = "Образование",
+                        FirstHeader = 2,
+                        LastHeader = 3,
+                    }],
+                    Values = _studentRepository.GetAsync().Result
+                });
+
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
+        public bool DeleteElement(PluginsConventionElement element)
+        {
+            try
+            {
+                _studentRepository
+                    .DeleteAsync(element.Id).Wait();
+
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
+        public Form GetForm(PluginsConventionElement? element = null) 
+            => new CreateForm(_studentRepository, _educationFormRepository, element?.Id);
+
+        public Form GetThesaurus() 
+            => new CatalogForm(_educationFormRepository);
+
+        public async void ReloadData()
+        {
+            try
+            {
+                var students = _mapper.Map<List<StudentViewModel>>(await _studentRepository.GetAsync());
+                
+                _control.FillValues(
+                    students.Select(s => string.Join(" ",
+                        [
+                            s.Id,
+                        s.Name,
+                        s.EducationForm,
+                        s.StartEducation.ToLongDateString(),
+                        s.SessionMarks,
+                        ]
+                    ))
+                );
+            }
+            catch
+            {
+
+            }
+        }
+    }
+}

Cop.Borovkov.Var3/Lab4/Lab4.csproj

@@ -8,4 +8,14 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\Lab3\Lab3.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="appsettings.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
 </Project>

Cop.Borovkov.Var3/Lab4/Program.cs

@@ -1,9 +1,17 @@
+using Lab3.Extensions;
+using Lab3.Forms;
+using Lab4.Extensions;
+using Lab4.Forms;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+
 namespace Lab4
 {
     internal static class Program
     {
         /// <summary>
-        ///  The main entry point for the application.
+        /// The main entry point for the application.
         /// </summary>
         [STAThread]
         static void Main()
@@ -11,7 +19,28 @@ namespace Lab4
             // To customize application configuration such as set high DPI settings or default font,
             // see https://aka.ms/applicationconfiguration.
             ApplicationConfiguration.Initialize();
-            Application.Run(new Form1());
+
+            var app = CreateHostBuilder().Build();
+
+            Application.Run(app.Services.GetRequiredService<FormMain>());
+        }
+
+        static IHostBuilder CreateHostBuilder()
+        {
+            return Host.CreateDefaultBuilder()
+                .ConfigureAppConfiguration(c
+                    => c.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true))
+                .ConfigureServices((context, services) => {
+
+                    services.ConfigureDAL(context.Configuration);
+
+                    services.AddMapping();
+
+                    services.AddLab3Forms();
+                    services.AddLab4Forms();
+
+                    services.AddScopes();
+                });
         }
     }
 }

Cop.Borovkov.Var3/Lab4/appsettings.json

@@ -0,0 +1,5 @@
+{
+  "ConnectionStrings": {
+    "COPDataBase": "Host=localhost;Username=postgres;Password=postgres;Database=COP"
+  }
+}