/// <summary>
/// Добавление курсовой работы
/// </summary>
private void btnCWAdd_Click(object sender, EventArgs e)
{
if (tbCWTitle.Text.Trim(' ') == "" || cbCWCourse.SelectedIndex == -1 || cbCWMark.SelectedIndex == -1 ||
cbCWStudent.SelectedIndex == -1 || cbCWTeacher.SelectedIndex == -1)
{
MessageBox.Show("Заполните все поля.", "Ошибка!");
return;
}
CourseWork cw = new CourseWork()
{
Title = tbCWTitle.Text.Trim(' '),
Mark = cbCWMark.Text,
Course = byte.Parse(cbCWCourse.Text),
Student = _cont.StudentSet.Find(((Student)cbCWStudent.SelectedValue).Id),
Teacher = _cont.TeacherSet.Find(((Teacher)cbCWTeacher.SelectedValue).Id)
};
_cont.CourseWorkSet.Add(cw);
_cont.SaveChanges();
tbCWTitle.Text = "";
cbCWMark.SelectedIndex = -1;
cbCWCourse.SelectedIndex = -1;
cbCWStudent.SelectedIndex = -1;
cbCWTeacher.SelectedIndex = -1;
RefreshDgvCW();
}
/// <summary>
/// Удаление курсовой работы
/// </summary>
private void btnCWDelete_Click(object sender, EventArgs e)
{
CourseWork cw = _cont.CourseWorkSet.Find(dgvCW.SelectedRows[0].Cells[0].Value);
if (cw != null)
{
_cont.CourseWorkSet.Remove(cw);
}
_cont.SaveChanges();
RefreshDgvCW();
}