//метод просмотра обьекта student private void buttonEdit_Click(object sender, EventArgs e) { if (listViewStudents.SelectedItems.Count <= 0) { return; } int studentIndex = listViewStudents.SelectedItems[0].Index; Debug.WriteLine(studentIndex); Debug.WriteLine(this.group.students.Count); Student student = this.group.students[studentIndex]; StudentForm studentForm = new StudentForm(student); DialogResult result = studentForm.ShowDialog(); if (result == DialogResult.OK) { ; } { RedRawStudents(); } }