StudentProgressRecord/Forms/FormsEntity/FormStatement.Designer.cs

@@ -61,6 +61,7 @@
             // 
             // dateTimePicker
             // 
+            dateTimePicker.Enabled = false;
             dateTimePicker.Location = new Point(13, 163);
             dateTimePicker.Name = "dateTimePicker";
             dateTimePicker.Size = new Size(250, 27);

StudentProgressRecord/Forms/FormsEntity/FormStatement.cs

@@ -47,7 +47,7 @@ namespace StudentProgressRecord.Forms
         {
             try
             {
-                if (dataGridView.RowCount < 1 || comboBoxTeacher.SelectedIndex < 0 || comboBoxSubject.SelectedIndex < 0)
+                if (dataGridView.RowCount < 2 || comboBoxTeacher.SelectedIndex < 0 || comboBoxSubject.SelectedIndex < 0)
                 {
                     throw new Exception("Имеются незаполненые поля");
                 }

StudentProgressRecord/RepositoryImp/SubjectRepository.cs

@@ -61,7 +61,24 @@ namespace StudentProgressRecord.RepositoryImp
 
         public Subject ReadSubjectById(long id)
         {
-           return Subject.CreateEntity(0, string.Empty, Direction.None);
+            _logger.LogInformation("Получение объекта по идентификатору");
+            _logger.LogDebug("Объект: {id}", id);
+            try
+            {
+                using var connection = new NpgsqlConnection(_connectionString.GetConnectionString());
+                var querySelect = @"
+                            SELECT * FROM Subject
+                            WHERE Id=@id";
+                var obj = connection.QueryFirst<Subject>(querySelect, new { id });
+                _logger.LogDebug("Найденный объект: {json}",
+                JsonConvert.SerializeObject(obj));
+                return obj;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка при поиске объекта");
+                throw;
+            }
         }
 
         public IEnumerable<Subject> ReadSubjects()